{"id":99260,"date":"2019-08-30T00:43:13","date_gmt":"2019-08-30T07:43:13","guid":{"rendered":"https:\/\/unit42.paloaltonetworks.com\/?p=99260"},"modified":"2019-09-04T22:19:40","modified_gmt":"2019-09-05T05:19:40","slug":"exploitation-of-windows-cve-2019-0708-bluekeep-three-ways-to-write-data-into-the-kernel-with-rdp-pdu","status":"publish","type":"post","link":"https:\/\/unit42.paloaltonetworks.com\/ja\/exploitation-of-windows-cve-2019-0708-bluekeep-three-ways-to-write-data-into-the-kernel-with-rdp-pdu\/","title":{"rendered":"Windows CVE-2019-0708\uff08BlueKeep\uff09\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u89e3\u8aac\uff1aRDP PDU\u3092\u4f7f\u7528\u3057\u3066\u30ab\u30fc\u30cd\u30eb\u306b\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u8fbc\u30803\u3064\u306e\u65b9\u6cd5"},"content":{"rendered":"<h2><a id=\"post-99110-_heading=h.12myn0qhkwks\"><\/a>\u30a8\u30b0\u30bc\u30af\u30c6\u30a3\u30d6\u30b5\u30de\u30ea\u30fc<\/h2>\n<p>2019\u5e745\u6708\u3001Microsoft\u306f\u5b9a\u4f8b\u5916\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u516c\u958b\u3057\u307e\u3057\u305f\u3002 \u30ea\u30e2\u30fc\u30c8\u30b3\u30fc\u30c9\u5b9f\u884c\u306e\u8106\u5f31\u6027\u3067\u3042\u308b<a href=\"https:\/\/cve.mitre.org\/cgi-bin\/cvename.cgi?name=CVE-2019-0708\">CVE-2019-0708<\/a>\u306b\u5bfe\u5fdc\u3059\u308b\u305f\u3081\u3067\u3001\u540c\u8106\u5f31\u6027\u306f\u300cBlueKeep\u300d\u3068\u3044\u3046\u540d\u524d\u3067\u3082\u77e5\u3089\u308c\u3001Remote Desktop Services\uff08RDS\uff09\u306b\u5b58\u5728\u3057\u307e\u3059\u3002\u540c\u8106\u5f31\u6027\u306f\u8a8d\u8a3c\u30d7\u30ed\u30bb\u30b9\u3088\u308a\u524d\u306e\u6bb5\u968e\u306b\u5b58\u5728\u3059\u308b\u305f\u3081\u3001\u30e6\u30fc\u30b6\u30fc\u3068\u306e\u5bfe\u8a71\u3092\u5fc5\u8981\u3068\u3057\u307e\u305b\u3093\u3002\u3053\u306e\u3053\u3068\u304b\u3089\u3001\u7834\u58ca\u7684\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306b\u8ee2\u7528\u3055\u308c\u308b\u304a\u305d\u308c\u304c\u3042\u308a\u3001\u7279\u306b\u5371\u967a\u3092\u306f\u3089\u3080\u8106\u5f31\u6027\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306b\u6210\u529f\u3059\u308b\u3068\u3001\u672c\u8106\u5f31\u6027\u306f\u300csystem\u300d\u306e\u6a29\u9650\u3067\u4efb\u610f\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002Microsoft Security Response Center\uff08MSRC\uff09\u306f<a href=\"https:\/\/portal.msrc.microsoft.com\/ja-JP\/security-guidance\/advisory\/CVE-2019-0708\">\u30a2\u30c9\u30d0\u30a4\u30b6\u30ea<\/a>\u3092\u516c\u958b\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u540c\u30a2\u30c9\u30d0\u30a4\u30b6\u30ea\u3067\u306f\u672c\u8106\u5f31\u6027\u304c\u30ef\u30fc\u30e0\u5316\u3067\u304d\u308b\u3053\u3068\u3082\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30ef\u30fc\u30e0\u5316\u3055\u308c\u305f\u632f\u308b\u821e\u3044\u306f\u3001WannaCry \u3084 EsteemAudit \u306a\u3069\u306e\u653b\u6483\u3067\u3082\u898b\u3089\u308c\u305f\u3082\u306e\u3067\u3059\u3002\u672c\u8106\u5f31\u6027\u306e\u6df1\u523b\u3055\u3068\u4e00\u822c\u3078\u306e\u6f5c\u5728\u7684\u5f71\u97ff\u3092\u8003\u616e\u3057\u3001Microsoft\u306f\u30b5\u30dd\u30fc\u30c8\u7d42\u4e86\u306eWindows XP \u7528\u306b\u3082\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u516c\u958b\u3057\u3001Windows\u30e6\u30fc\u30b6\u30fc\u3092\u4fdd\u8b77\u3059\u308b\u3068\u3044\u3046\u4f8b\u5916\u7684\u5bfe\u5fdc\u3092\u53d6\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u672c\u8106\u5f31\u6027\u304c\u4e16\u754c\u898f\u6a21\u3067\u58ca\u6ec5\u7684\u5f71\u97ff\u3092\u3082\u305f\u3089\u3059\u53ef\u80fd\u6027\u304c\u3042\u308b\u3053\u3068\u304b\u3089\u3001\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306e\u8105\u5a01\u30a4\u30f3\u30c6\u30ea\u30b8\u30a7\u30f3\u30b9\u30ea\u30b5\u30fc\u30c1\u90e8\u9580 Unit 42 \u306f\u5f53\u8a72\u8106\u5f31\u6027\u3092\u5206\u6790\u3057\u3001RDS\u306e\u5185\u90e8\u6a5f\u69cb\u3068\u305d\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u65b9\u6cd5\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3068\u8003\u3048\u307e\u3057\u305f\u3002\u4ee5\u4e0b\u306e\u8abf\u67fb\u3067\u306f\u3001RDP\u306e\u5185\u90e8\u6a5f\u69cb\u306b\u3064\u3044\u3066\u5206\u6790\u3057\u3001\u3053\u306e\u6a5f\u69cb\u304c\u3069\u306e\u3088\u3046\u306b\u60aa\u7528\u3055\u308c\u308c\u3070\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u672a\u9069\u7528\u306e\u30db\u30b9\u30c8\u3067\u30b3\u30fc\u30c9\u304c\u5b9f\u884c\u3055\u308c\u308b\u306e\u304b\u3092\u6df1\u304f\u6398\u308a\u4e0b\u3052\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u672c\u7a3f\u3067\u306f\u3001Bitmap Cache\u30d7\u30ed\u30c8\u30b3\u30eb \u30c7\u30fc\u30bf \u30e6\u30cb\u30c3\u30c8\uff08\u4ee5\u964dPDU\u3068\u8868\u8a18\uff09\u3001Refresh Rect PDU\u3001\u304a\u3088\u3073RDPDR Client Name Request PDU\u306e3\u3064\u306ePDU\u3092\u4f7f\u7528\u3057\u3001\u30c7\u30fc\u30bf\u3092\u30ab\u30fc\u30cd\u30eb \u30e1\u30e2\u30ea\u306b\u66f8\u304d\u8fbc\u3080\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3082\u8003\u5bdf\u3057\u307e\u3059\u3002<\/p>\n<p>\u540c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u304c5\u6708\u306b\u516c\u958b\u3055\u308c\u3066\u4ee5\u964d\u3001\u672c\u8106\u5f31\u6027\u306f\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u696d\u754c\u304b\u3089\u591a\u304f\u306e\u6ce8\u76ee\u3092\u96c6\u3081\u3066\u3044\u307e\u3059\u3002\u5b9f\u7528\u7684\u306a\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u304c\u5b9f\u969b\u306b\u516c\u958b\u3055\u308c\u308b\u306e\u306f\u6642\u9593\u306e\u554f\u984c\u3067\u3001\u79c1\u305f\u3061\u306e\u8abf\u67fb\u7d50\u679c\u306f\u3001\u8106\u5f31\u306a\u30b7\u30b9\u30c6\u30e0\u306b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u9069\u7528\u3057\u306a\u304b\u3063\u305f\u5834\u5408\u306e\u30ea\u30b9\u30af\u3092\u5f37\u8abf\u3059\u308b\u7d50\u679c\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3><a id=\"post-99110-_heading=h.gtomuv3uoxw5\"><\/a>Bitmap Cache PDU<\/h3>\n<p><a href=\"https:\/\/docs.microsoft.com\/en-us\/openspecs\/windows_protocols\/ms-rdpbcgr\/5073f4ed-1e93-45e1-b039-6e30c385867c\">MS-RDPBCGR<\/a> \uff08Remote Desktop Protocol\uff1aBasic Connectivity and Graphics Remoting\uff09\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u3088\u308b\u3068\u3001Bitmap Cache PDU\u306e\u5b8c\u5168\u306a\u540d\u524d\u306fTS_BITMAPCACHE_PERSISTENT_LIST_PDU\u3067\u3001Persistent Key List PDU Data\u3068\u898b\u306a\u3055\u308c\u3001Persistent Key List PDU \u306b\u57cb\u3081\u8fbc\u307e\u308c\u3066\u3044\u307e\u3059\u3002Persistent Key List PDU\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u30b5\u30fc\u30d0\u30fc\u306b\u9001\u4fe1\u3055\u308c\u308bRDP Connection Sequence PDU\u3067\u3001RDP Connection Sequence\u306eConnection Finalization\u30d5\u30a7\u30fc\u30ba\u3067\u9001\u4fe1\u3055\u308c\u308b\u3082\u306e\u3067\u3059\uff08\u56f31\u53c2\u7167\uff09\u3002<\/p>\n<p style=\"text-align: center;\"><img width=\"736\" height=\"813\"  class=\"wp-image-99112 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-11.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-11.png 736w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-11-272x300.png 272w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-11-370x409.png 370w\" sizes=\"(max-width: 736px) 100vw, 736px\" \/><span style=\"font-size: 10pt;\"><em>\u56f31 Remote Desktop Protocol (RDP) \u63a5\u7d9a\u30b7\u30fc\u30b1\u30f3\u30b9<\/em><\/span><\/p>\n<p>Persistent Key List PDU\u30d8\u30c3\u30c0\u306f\u4e00\u822cRDP PDU\u30d8\u30c3\u30c0\u3067\u3001\u300ctpktHeader (4 \u30d0\u30a4\u30c8) + x224Data (3 \u30d0\u30a4\u30c8) + mcsSDrq (\u53ef\u5909\u9577) + securityHeader (\u53ef\u5909\u9577)\u300d\u3068\u3044\u3046\u5f62\u5f0f\u306b\u306a\u3063\u3066\u3044\u307e\u3059\uff08\u56f32\u53c2\u7167\uff09\u3002<\/p>\n<p style=\"text-align: center;\"><img width=\"870\" height=\"419\"  class=\"wp-image-99114 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-12.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-12.png 870w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-12-300x144.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-12-768x370.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-12-380x184.png 380w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-12-370x178.png 370w\" sizes=\"(max-width: 870px) 100vw, 870px\" \/><span style=\"font-size: 10pt;\"><em>\u56f32 Client Persistent Key List PDU<\/em><\/span><\/p>\n<p><a href=\"https:\/\/docs.microsoft.com\/en-us\/openspecs\/windows_protocols\/ms-rdpbcgr\/5073f4ed-1e93-45e1-b039-6e30c385867c\">MS-RDPBCGR<\/a>\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u3088\u308c\u3070\u3001TS_BITMAPCACHE_PERSISTENT_LIST_PDU\u306f\u3001\u4ee5\u524d\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u3067\u9001\u4fe1\u3055\u308c\u305fCache Bitmap (Revision 2) Orders ([MS-RDPEGDI] section 2.2.2.2.1.2.3)\u304b\u3089\u4fdd\u5b58\u3057\u305f\u30ad\u30e3\u30c3\u30b7\u30e5\u6e08\u307f\u30d3\u30c3\u30c8\u30de\u30c3\u30d7\u30ad\u30fc\u306e\u30ea\u30b9\u30c8\u3092\u542b\u3080\u69cb\u9020\u4f53\u3092\u4fdd\u6301\u3057\u3066\u3044\u307e\u3059\uff08\u56f33\u53c2\u7167\uff09\u3002<\/p>\n<p style=\"text-align: center;\"><img width=\"817\" height=\"578\"  class=\"wp-image-99116 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-13.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-13.png 817w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-13-300x212.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-13-768x543.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-13-370x262.png 370w\" sizes=\"(max-width: 817px) 100vw, 817px\" \/><span style=\"font-size: 10pt;\"><em>\u56f33 Persistent Key List PDU Data (BITMAPCACHE PERSISTENT LIST PDU)<\/em><\/span><\/p>\n<p>Bitmap Cache PDU\u306f\u8a2d\u8a08\u4e0a\u3001\u30ad\u30fc\u3068\u7d10\u3065\u304f\u30d3\u30c3\u30c8\u30de\u30c3\u30d7\u306e\u30ed\u30fc\u30ab\u30eb \u30b3\u30d4\u30fc\u304c\u5b58\u5728\u3059\u308b\u3053\u3068\u3092RDP\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u30b5\u30fc\u30d0\u30fc\u306b\u77e5\u3089\u305b\u308b\u3082\u306e\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30b5\u30fc\u30d0\u30fc\u306f\u30d3\u30c3\u30c8\u30de\u30c3\u30d7\u3092\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u9001\u4fe1\u3059\u308b\u5fc5\u8981\u304c\u306a\u304f\u306a\u308a\u307e\u3059\u3002<a href=\"https:\/\/docs.microsoft.com\/en-us\/openspecs\/windows_protocols\/ms-rdpbcgr\/5073f4ed-1e93-45e1-b039-6e30c385867c\">MS-RDPBCGR<\/a>\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u3088\u308c\u3070\u3001Bitmap PDU\u306b\u306f4\u3064\u306e\u7279\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>RDP\u30b5\u30fc\u30d0\u30fc\u306f\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u3092\u5272\u308a\u5f53\u3066\u3066\u30ad\u30e3\u30c3\u30b7\u30e5\u6e08\u307f\u30d3\u30c3\u30c8\u30de\u30c3\u30d7 \u30ad\u30fc\u3092\u683c\u7d0d\u3059\u308b<\/li>\n<li>RDP\u30b5\u30fc\u30d0\u30fc\u304c\u5272\u308a\u5f53\u3066\u308b\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u306e\u30b5\u30a4\u30ba\u3092\u6c7a\u3081\u308b\u306e\u306f\u3001\u540c\u69cb\u9020\u4f53\u5185\u306b\u5b58\u5728\u3059\u308bnumEntriesCache<strong>X<\/strong>[X\u306f0\u304b\u30894\u306e\u5024]\u306e\u300cWORD\u5024\u300d\u3068\u3001RDP\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u306eBITMAPCACHE PERSISTENT LIST\u69cb\u9020\u4f53\u306b\u5b58\u5728\u3059\u308btotalEntriesCache<strong>X<\/strong>[X\u306f0\u304b\u30894\u306e\u5024]<\/li>\n<li>Bitmap Cache PDU\u306f\u6b63\u898f\u306e\u65b9\u6cd5\u3067\u8907\u6570\u56de\u9001\u4fe1\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3002\u3053\u308c\u306f\u3001\u30d3\u30c3\u30c8\u30de\u30c3\u30d7 \u30ad\u30fc\u304c\u8907\u6570\u306ePersistent Key List PDU\u3067\u9001\u4fe1\u53ef\u80fd\u3067\u3001\u5404PDU\u306fbBitMask\u30d5\u30a3\u30fc\u30eb\u30c9\u5185\u306e\u30d5\u30e9\u30b0\u306b\u3088\u3063\u3066\u30de\u30fc\u30ad\u30f3\u30b0\u3055\u308c\u308b\u305f\u3081<\/li>\n<li>\u30d3\u30c3\u30c8\u30de\u30c3\u30d7\u30ad\u30fc\u306e\u6570\u306f169\u500b\u307e\u3067\u306b\u5236\u9650\u3055\u308c\u308b<\/li>\n<\/ul>\n<p>BITMAPCACHE PERSISTENT LIST PDU\u306e\u3082\u3064\u3053\u308c\u30894\u3064\u306e\u7279\u6027\u3092\u8003\u3048\u308c\u3070\u3001\u30ab\u30fc\u30cd\u30eb\u306b\u4efb\u610f\u306e\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u8fbc\u3081\u308b\u3068\u3044\u3046\u306e\u306f\u3001\u30d3\u30c3\u30c8\u30de\u30c3\u30d7\u30ad\u30fc\u6570\u306e169\u500b\u5236\u9650\u3092\u4f55\u3089\u304b\u306e\u65b9\u6cd5\u3067\u30d0\u30a4\u30d1\u30b9\u3067\u304d\u308b\u306e\u304b\u3001Microsoft\u306eRDP\u958b\u767a\u8005\u304c\u3053\u306e\u30d3\u30c3\u30c8\u30de\u30c3\u30d7\u30ad\u30fc\u6570\u5236\u9650\u3092\u6b63\u3057\u304f\u5b9f\u88c5\u3057\u3066\u3044\u306a\u304b\u3063\u305f\u3001\u3068\u3044\u3046\u306e\u304c\u539f\u56e0\u3068\u3057\u3066\u3042\u308a\u305d\u3046\u3067\u3059\u3002<\/p>\n<h3><a id=\"post-99110-_heading=h.e4xztq5v5f0i\"><\/a>Bitmap Cache PDU\u3092\u4f7f\u7528\u3057\u3066\u30ab\u30fc\u30cd\u30eb\u306b\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u8fbc\u3080\u65b9\u6cd5<\/h3>\n<p><a href=\"https:\/\/docs.microsoft.com\/en-us\/openspecs\/windows_protocols\/ms-rdpbcgr\/5073f4ed-1e93-45e1-b039-6e30c385867c\">MS-RDPBCGR<\/a>\u306e\u8cc7\u6599\u306b\u3088\u308b\u3068\u3001\u901a\u5e38\u306e\u5fa9\u53f7\u5316\u3055\u308c\u305fBITMAPCACHE PERSISTENT LIST PDU\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<table>\n<tbody>\n<tr>\n<td>f2 00 -&gt; TS_SHARECONTROLHEADER::totalLength = 0x00f2 = 242 bytes<\/p>\n<p>17 00 -&gt; TS_SHARECONTROLHEADER::pduType = 0x0017<\/p>\n<p>0x0017<\/p>\n<p>= 0x0010 | 0x0007<\/p>\n<p>= TS_PROTOCOL_VERSION | PDUTYPE_DATAPDU<\/p>\n<p>ef 03 -&gt; TS_SHARECONTROLHEADER::pduSource = 0x03ef = 1007<\/p>\n<p>ea 03 01 00 -&gt; TS_SHAREDATAHEADER::shareID = 0x000103ea<\/p>\n<p>00 -&gt; TS_SHAREDATAHEADER::pad1<\/p>\n<p>01 -&gt; TS_SHAREDATAHEADER::streamId = STREAM_LOW (1)<\/p>\n<p>00 00 -&gt; TS_SHAREDATAHEADER::uncompressedLength = 0<\/p>\n<p>2b -&gt; TS_SHAREDATAHEADER::pduType2 =<\/p>\n<p>PDUTYPE2_BITMAPCACHE_PERSISTENT_LIST (43)<\/p>\n<p>00 -&gt; TS_SHAREDATAHEADER::generalCompressedType = 0<\/p>\n<p>00 00 -&gt; TS_SHAREDATAHEADER::generalCompressedLength = 0<\/p>\n<p>00 00 -&gt; TS_BITMAPCACHE_PERSISTENT_LIST::numEntries[0] = 0<\/p>\n<p>00 00 -&gt; TS_BITMAPCACHE_PERSISTENT_LIST::numEntries[1] = 0<\/p>\n<p>19 00 -&gt; TS_BITMAPCACHE_PERSISTENT_LIST::numEntries[2] = 0x19 = 25<\/p>\n<p>00 00 -&gt; TS_BITMAPCACHE_PERSISTENT_LIST::numEntries[3] = 0<\/p>\n<p>00 00 -&gt; TS_BITMAPCACHE_PERSISTENT_LIST::numEntries[4] = 0<\/p>\n<p>00 00 -&gt; TS_BITMAPCACHE_PERSISTENT_LIST::totalEntries[0] = 0<\/p>\n<p>00 00 -&gt; TS_BITMAPCACHE_PERSISTENT_LIST::totalEntries[1] = 0<\/p>\n<p>19 00 -&gt; TS_BITMAPCACHE_PERSISTENT_LIST::totalEntries[2] = 0x19 = 25<\/p>\n<p>00 00 -&gt; TS_BITMAPCACHE_PERSISTENT_LIST::totalEntries[3] = 0<\/p>\n<p>00 00 -&gt; TS_BITMAPCACHE_PERSISTENT_LIST::totalEntries[4] = 0<\/p>\n<p>03 -&gt; TS_BITMAPCACHE_PERSISTENT_LIST::bBitMask = 0x03<\/p>\n<p>0x03<\/p>\n<p>= 0x01 | 0x02<\/p>\n<p>= PERSIST_FIRST_PDU | PERSIST_LAST_PDU<\/p>\n<p>00 -&gt; TS_BITMAPCACHE_PERSISTENT_LIST::Pad2<\/p>\n<p>00 00 -&gt; TS_BITMAPCACHE_PERSISTENT_LIST::Pad3<\/p>\n<p>TS_BITMAPCACHE_PERSISTENT_LIST::entries:<\/p>\n<p>a3 1e 51 16 -&gt; Cache 2, Key 0, Low 32-bits (TS_BITMAPCACHE_PERSISTENT_LIST_ENTRY::Key1)<\/p>\n<p>48 29 22 78 -&gt; Cache 2, Key 0, High 32-bits (TS_BITMAPCACHE_PERSISTENT_LIST_ENTRY::Key2)<\/p>\n<p>61 f7 89 9c -&gt; Cache 2, Key 1, Low 32-bits (TS_BITMAPCACHE_PERSISTENT_LIST_ENTRY::Key1)<\/p>\n<p>cd a9 66 a8 -&gt; Cache 2, Key 1, High 32-bits (TS_BITMAPCACHE_PERSISTENT_LIST_ENTRY::Key2)<\/p>\n<p>\u2026<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u30ab\u30fc\u30cd\u30eb\u30e2\u30b8\u30e5\u30fc\u30ebRDPWD.sys\u5185\u3067\u306f\u3001\u95a2\u6570\u30eb\u30fc\u30c1\u30f3ShareClass::SBC_HandlePersistentCacheList\u304cBITMAPCACHE PERSISTENT LIST PDU\u306e\u30d1\u30fc\u30b9\u3092\u62c5\u5f53\u3057\u3066\u3044\u307e\u3059\u3002\u540c\u69cb\u9020\u4f53\u5185\u306ebBitMask\u30d5\u30a3\u30fc\u30eb\u30c9\u304c\u30d3\u30c3\u30c8\u50240x01\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u305d\u308c\u306f\u73fe\u5728\u306ePDU\u304cPERSIST FIRST PDU\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u5834\u5408\u3001SBC_HandlePersistentCacheList\u306f\u3001WDLIBRT_MemAlloc\u3092\u547c\u3073\u51fa\u3057\u3066\u3001\u56f34\u306b\u793a\u3059\u3068\u304a\u308a\u3001\u6c38\u7d9a\u7684\u306a\u30d3\u30c3\u30c8\u30de\u30c3\u30d7 \u30ad\u30e3\u30c3\u30b7\u30e5 \u30ad\u30fc\u3092\u683c\u7d0d\u3059\u308b\u305f\u3081\u306e\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u3092\u5272\u308a\u5f53\u3066\u307e\u3059\uff08\u3064\u307e\u308a\u3001\u30ab\u30fc\u30cd\u30eb\u30e1\u30e2\u30ea\u3092\u5272\u308a\u5f53\u3066\u307e\u3059\uff09\u3002\u50240x00\u306f\u3001\u73fe\u5728\u306ePDU\u304cPERSIST MIDDLE PDU\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u50240x02\u306f\u3001\u73fe\u5728\u306ePDU\u304cPERSIST LAST PDU\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002SBC_HandlePersistentCacheList\u306f\u3001PERSIST MIDDLE PDU\u3068PERSIST LAST PDU\u3092\u30d1\u30fc\u30b9\u3059\u308b\u3055\u3044\u3001\u4ee5\u524d\u5272\u308a\u5f53\u3066\u3089\u308c\u305f\u30e1\u30e2\u30ea\u306b\u30d3\u30c3\u30c8\u30de\u30c3\u30d7 \u30ad\u30e3\u30c3\u30b7\u30e5 \u30ad\u30fc\u3092\u30b3\u30d4\u30fc\u3057\u307e\u3059\uff08\u56f35\u53c2\u7167\uff09\u3002<\/p>\n<p><img width=\"952\" height=\"777\"  class=\"wp-image-99118 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-14.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-14.png 952w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-14-300x245.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-14-768x627.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-14-900x735.png 900w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-14-370x302.png 370w\" sizes=\"(max-width: 952px) 100vw, 952px\" \/><\/p>\n<p style=\"text-align: center;\"><span style=\"font-size: 10pt;\"><em>\u56f34 SBC_HandlePersistentCacheList\u306e\u30d7\u30fc\u30eb\u5272\u308a\u5f53\u3066\u3068totalEntriesCacheLimit\u306e\u30c1\u30a7\u30c3\u30af<\/em><\/span><\/p>\n<p style=\"text-align: center;\"><img width=\"877\" height=\"644\"  class=\"wp-image-99120 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-15.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-15.png 877w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-15-300x220.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-15-768x564.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-15-370x272.png 370w\" sizes=\"(max-width: 877px) 100vw, 877px\" \/><span style=\"font-size: 10pt;\"><em>\u56f35 SBC_HandlePersistentCacheList\u306b\u3088\u308b\u30d3\u30c3\u30c8\u30de\u30c3\u30d7 \u30ad\u30e3\u30c3\u30b7\u30e5 \u30ad\u30fc\u306e\u30b3\u30d4\u30fc<\/em><\/span><\/p>\n<p>Windows 7\uff08x86\uff09\u3067\u884c\u3063\u305f\u30b9\u30bf\u30c3\u30af \u30c8\u30ec\u30fc\u30b9\u3068SBC_HandlePersistentCacheList\u306b\u6e21\u3055\u308c\u308b2\u3064\u76ee\u306e\u5f15\u6570TS_BITMAPCACHE_PERSISTENT_LIST\u69cb\u9020\u4f53\u3092\u56f36\u304a\u3088\u3073\u56f37\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n<p style=\"text-align: center;\"><img width=\"797\" height=\"422\"  class=\"wp-image-99122 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/c-users-ga1ois-appdata-local-microsoft-windows-in.png\" alt=\"C:\\Users\\ga1ois\\AppData\\Local\\Microsoft\\Windows\\INetCache\\Content.Word\\SBC_HandlePersistentCacheList stack trace.bmp\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/c-users-ga1ois-appdata-local-microsoft-windows-in.png 797w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/c-users-ga1ois-appdata-local-microsoft-windows-in-300x159.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/c-users-ga1ois-appdata-local-microsoft-windows-in-768x407.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/c-users-ga1ois-appdata-local-microsoft-windows-in-370x196.png 370w\" sizes=\"(max-width: 797px) 100vw, 797px\" \/><span style=\"font-size: 10pt;\"><em>\u56f36 SBC_HandlePersistentCacheList\u306e\u30b9\u30bf\u30c3\u30af \u30c8\u30ec\u30fc\u30b9<\/em><\/span><\/p>\n<p style=\"text-align: center;\"><img width=\"853\" height=\"478\"  class=\"wp-image-99124 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-16.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-16.png 853w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-16-300x168.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-16-768x430.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-16-370x207.png 370w\" sizes=\"(max-width: 853px) 100vw, 853px\" \/><span style=\"font-size: 10pt;\"><em>\u56f37 SBC_HandlePersistentCacheList\u306b2\u3064\u76ee\u306e\u5f15\u6570\u3068\u3057\u3066\u6e21\u3055\u308c\u308bTS_BITMAPCACHE_PERSISTENT_LIST\u69cb\u9020\u4f53<\/em><\/span><\/p>\n<p>\u56f34\u306b\u8d64\u67a0\u3067\u793a\u3057\u305f\u3068\u304a\u308a\u3001bitmapCacheListPoolLen = 0xC * (total length + 4) \u3067\u3001total length = totalEntriesCache0 + totalEntriesCache1 + totalEntriesCache2 + totalEntriesCache3 + totalEntriesCache4 \u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u5f0f\u306b\u3082\u3068\u3065\u3051\u3070\u3001\u300cWORD\u5024\u300d\u306btotalEntriesCache<strong>X<\/strong> = 0xffff\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001bitmapCacheListPoolLen\u3092\u6700\u5927\u5316\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u56f34\u306b\u793a\u3057\u305f\u3068\u304a\u308a\u3001totalEntriesCache<strong>X<\/strong>\u3054\u3068\u306btotalEntriesCacheLimit\u306e\u30c1\u30a7\u30c3\u30af\u304c\u3042\u308a\u307e\u3059\u3002totalEntriesCacheLimit<strong>X<\/strong>\u306f\u3001RDPWD\u304cDCS_Init\u3092\u547c\u3073\u51fa\u3057\u305f\u3068\u304d\u306bCAPAPI_LOAD_TS_BITMAPCACHE_CAPABILITYSET_REV2\u95a2\u6570\u306b\u3088\u3063\u3066\u958b\u59cb\u3055\u308c\u308bTS_BITMAPCACHE_CAPABILITYSET_REV2\u69cb\u9020\u4f53\u304b\u3089\u304d\u3066\u3044\u307e\u3059\uff08\u56f38\u53c2\u7167\uff09\u3002\u3053\u308c\u304c\u3001\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u78ba\u8a8dPDU\u306e\u30d1\u30fc\u30b9\u6642\u306b\u3001CAPAPI_COMBINE_TS_BITMAPCACHE_CAPABILITYSET_REV2\u95a2\u6570\u3067\u7d50\u5408\u3055\u308c\u307e\u3059\uff08\u56f39\u53c2\u7167\uff09\u3002<\/p>\n<p><img width=\"869\" height=\"285\"  class=\"wp-image-99126 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-17.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-17.png 869w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-17-300x98.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-17-768x252.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-17-370x121.png 370w\" sizes=\"(max-width: 869px) 100vw, 869px\" \/><\/p>\n<p style=\"text-align: center;\"><span style=\"font-size: 10pt;\"><em>\u56f38 RDPWD!CAPAPI_LOAD_TS_BITMAPCACHE_CAPABILITYSET_REV2<\/em><\/span><\/p>\n<p style=\"text-align: center;\"><img  class=\"alignnone size-full wp-image-99170 lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/image16-1.png\" alt=\"\" width=\"906\" height=\"391\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/image16-1.png 906w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/image16-1-300x129.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/image16-1-768x331.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/image16-1-900x388.png 900w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/image16-1-370x160.png 370w\" sizes=\"(max-width: 906px) 100vw, 906px\" \/><span style=\"font-size: 10pt;\"><em>\u56f39 RDPWD!CAPAPI_COMBINE_TS_BITMAPCACHE_CAPABILITYSET_REV2<\/em><\/span><\/p>\n<p>CAPAPI_COMBINE_TS_BITMAPCACHE_CAPABILITYSET_REV2\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u304c\u958b\u59cb\u3057\u305fNumCellCaches (0x03) \u304a\u3088\u3073totalEntriesCacheLimit[0-4] (0x258, 0x258, 0x10000, 0x0, 0x0) \u3092\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3067\u3042\u308bNumCellCaches (0x03) \u304a\u3088\u3073totalEntriesCache[0-4] (0x80000258, 0x80000258, 0x8000fffc, 0x0, 0x0)\u3068\u3092\u7d50\u5408\u3057\u307e\u3059\u3002\u3053\u306e\u69d8\u5b50\u304c\u56f39\u306eedx\u304a\u3088\u3073esi\u30ec\u30b8\u30b9\u30bf\u3067\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u56f310\u306b\u793a\u3059\u3088\u3046\u306b\u3001NumCellCaches\u304a\u3088\u3073totalEntriesCache[0-4]\u306b\u3064\u3044\u3066\u306f\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u3067\u5236\u5fa1\u3067\u304d\u307e\u3059\u304c\u3001\u3053\u306e\u5024\u306f\u30b5\u30fc\u30d0\u30fc\u5074\u304c\u958b\u59cb\u3057\u305fNumCellCaches (0x03) \u304a\u3088\u3073totalEntriesCacheLimit[0-4] (0x258, 0x258, 0x10000, 0x0, 0x0)\u306e\u5024\u3092\u8d85\u3048\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\uff08\u56f311\u53c2\u7167\uff09\u3002<\/p>\n<p style=\"text-align: center;\"><img width=\"892\" height=\"550\"  class=\"wp-image-99130 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-19.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-19.png 892w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-19-300x185.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-19-768x474.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-19-370x228.png 370w\" sizes=\"(max-width: 892px) 100vw, 892px\" \/><span style=\"font-size: 10pt;\"><em>\u56f310 TS_BITMAPCACHE_CAPABILITYSET_REV2<\/em><\/span><\/p>\n<p style=\"text-align: center;\"><img width=\"676\" height=\"629\"  class=\"wp-image-99132 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-20.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-20.png 676w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-20-300x279.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-20-370x344.png 370w\" sizes=\"(max-width: 676px) 100vw, 676px\" \/><span style=\"font-size: 10pt;\"><em>\u56f311 CAPAPI_COMBINE_TS_BITMAPCACHE_CAPABILITYSET_REV2\u95a2\u6570<\/em><\/span><\/p>\n<p>\u3053\u308c\u3092\u8e0f\u307e\u3048\u308c\u3070\u3001bitmapCacheListPoolLen\u306e\u6700\u5927\u5024\u306fbitmapCacheListPoolLen = 0xC * (0x10000 + 0x258 + 0x258 + 4) = 0xc3870 \u3068\u306a\u308b\u3053\u3068\u304c\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u7406\u8ad6\u4e0a\u306f\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u5185\u306e 0x8 * (0x10000 + 0x258 + 0x258 + 4) = 0x825a0 \u30d0\u30a4\u30c8\u5206\u306e\u30c7\u30fc\u30bf\u3092\u5236\u5fa1\u3067\u304d\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\uff08\u56f312\u53c2\u7167\uff09\u3002<\/p>\n<p style=\"text-align: center;\"><img width=\"750\" height=\"570\"  class=\"wp-image-99134 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-21.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-21.png 750w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-21-300x228.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-21-370x281.png 370w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><span style=\"font-size: 10pt;\"><em>\u56f312 Persistent Key List PDU \u306e\u30e1\u30e2\u30ea \u30c0\u30f3\u30d7<\/em><\/span><\/p>\n<p>\u305f\u3060\u3057\u3001\u4e88\u60f3\u3068\u306f\u7570\u306a\u308a\u3001RDP\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u30d3\u30c3\u30c8\u30de\u30c3\u30d7 \u30ad\u30e3\u30c3\u30b7\u30e5 \u30ea\u30b9\u30c8 \u30d7\u30fc\u30eb\u5185\u306e\u5168\u30c7\u30fc\u30bf\u3092\u5236\u5fa1\u3067\u304d\u308b\u308f\u3051\u3067\u306f\u306a\u3044\u3053\u3068\u304c\u89b3\u6e2c\u3055\u308c\u307e\u3057\u305f\u3002\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3055\u308c\u305f\u54048\u30d0\u30a4\u30c8\u5206\u306e\u30c7\u30fc\u30bf\u306e\u9593\u306b\u306f\u30014\u30d0\u30a4\u30c8\u5206\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3055\u308c\u306a\u3044\u30c7\u30fc\u30bf\uff08\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u5024\uff09\u304c\u5b58\u5728\u3057\u3066\u304a\u308a\u3001\u3053\u308c\u306f\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u306b\u3068\u3063\u3066\u306f\u4f7f\u3044\u52dd\u624b\u304c\u3088\u304f\u3042\u308a\u307e\u305b\u3093\u3002\u3055\u3089\u306b\u6b63\u898f\u306bPersistent Key List PDU\u3092\u9001\u4fe1\u3067\u304d\u308b\u306e\u306f1\u56de\u3060\u3051\u3067\u3042\u308b\u3053\u3068\u304b\u3089\u3001\u30b5\u30a4\u30ba\u304c0xc3870\uff08\u5148\u306b\u8a08\u7b97\u3057\u305fbitmapCacheListPoolLen\u306e\u6700\u5927\u5024\uff09\u306e\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u3092\u8907\u6570\u56de\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u3068\u306f\u3044\u3048\u3001\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u304c\u540c\u3058\u30e1\u30e2\u30ea \u30a2\u30c9\u30ec\u30b9\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\u7d71\u8a08\u7684\u7279\u6027\u306f\u307e\u3060\u6b8b\u3063\u3066\u3044\u307e\u3059\u3057\u3001\u30d3\u30c3\u30c8\u30de\u30c3\u30d7 \u30ad\u30e3\u30c3\u30b7\u30e5 \u30ea\u30b9\u30c8 \u30d7\u30fc\u30eb\u306e\u5272\u308a\u5f53\u3066\u524d\u306b\u306f\u3001\u30b5\u30a4\u30ba\u304c0x2b522c\uff08x86\u306e\u5834\u5408\uff09\u306a\u3044\u30570x2b5240\uff08x64\u306e\u5834\u5408\uff09\u306e\u30ab\u30fc\u30cd\u30eb \u30b5\u30a4\u30ba \u30d7\u30fc\u30eb\u304c\u5e38\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u3053\u3068\u306f\u3001\u56f313\u306b\u793a\u3059\u3068\u304a\u308a\u3001\u7279\u306bx64\u74b0\u5883\u3067\u306e\u30d2\u30fc\u30d7 \u30b0\u30eb\u30fc\u30df\u30f3\u30b0\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<p style=\"text-align: center;\"><img width=\"190\" height=\"632\"  class=\"wp-image-99136 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-22.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-22.png 190w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-22-90x300.png 90w\" sizes=\"(max-width: 190px) 100vw, 190px\" \/><span style=\"font-size: 10pt;\"><em>\u56f313 Persistent Key List PDU\u306e\u7d71\u8a08\u7684\u7279\u6027<\/em><\/span><\/p>\n<h3><a id=\"post-99110-_heading=h.4d4vzt8nnfp3\"><\/a>Refresh Rect PDU<\/h3>\n<p><a href=\"https:\/\/docs.microsoft.com\/en-us\/openspecs\/windows_protocols\/ms-rdpbcgr\/5073f4ed-1e93-45e1-b039-6e30c385867c\">MS-RDPBCGR<\/a>\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u3088\u308c\u3070\u3001Refresh Rect PDU\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001RDP\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u30b5\u30fc\u30d0\u30fc\u306b\u30bb\u30c3\u30b7\u30e7\u30f3\u753b\u9762\u9818\u57df\u306e1\u3064\u4ee5\u4e0a\u306e\u77e9\u5f62\u3092\u518d\u63cf\u753b\u3059\u308b\u3088\u3046\u8981\u6c42\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002Refresh Rect PDU \u69cb\u9020\u4f53\u306b\u306f\u3001\u4e00\u822cPDU\u30d8\u30c3\u30c0\u3068Refresh Rect PDU Data\uff08refreshRectPduData (\u53ef\u5909\u9577)\uff09\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u5f8c\u8005\u306erefreshRectPduData\u306e\u69cb\u9020\u4f53\u3092\u793a\u3057\u305f\u306e\u304c\u56f314\u3067\u3059\u3002<\/p>\n<p style=\"text-align: center;\"><img width=\"824\" height=\"346\"  class=\"wp-image-99138 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-23.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-23.png 824w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-23-300x126.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-23-768x322.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-23-370x155.png 370w\" sizes=\"(max-width: 824px) 100vw, 824px\" \/><span style=\"font-size: 10pt;\"><em>\u56f314 Refresh Rect PDU Data<\/em><\/span><\/p>\n<p>\u3053\u3053\u3067numberOfAreas\u30d5\u30a3\u30fc\u30eb\u30c9\u306f\u3001areasToRefresh\u30d5\u30a3\u30fc\u30eb\u30c9\u306eInclusive Rectangle\u69cb\u9020\u4f53\u306e\u5024\u3092\u5b9a\u7fa9\u3059\u308b8\u30d3\u30c3\u30c8\u306e\u7b26\u53f7\u306a\u3057\u6574\u6570\u3067\u3059\u3002\u307e\u305f\u3001areaToRefresh\u30d5\u30a3\u30fc\u30eb\u30c9\u306f\u3001TS_RECTANGLE16\u69cb\u9020\u4f53\u306e\u914d\u5217\u3067\u3059\uff08\u56f315\u53c2\u7167\uff09\u3002<\/p>\n<p style=\"text-align: center;\"><img width=\"852\" height=\"251\"  class=\"wp-image-99140 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-24.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-24.png 852w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-24-300x88.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-24-768x226.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-24-370x109.png 370w\" sizes=\"(max-width: 852px) 100vw, 852px\" \/><span style=\"font-size: 10pt;\"><em>\u56f315 Inclusive Rectangle (TS_RECTANGLE16)<\/em><\/span><\/p>\n<p>Refresh Rect PDU\u306f\u3001\u4e00\u9023\u306e\u753b\u9762\u9818\u57df\u300cInclusive Rectangle\u300d\u914d\u5217\u3092\u4f7f\u7528\u3057\u3066\u3001\u30b5\u30fc\u30d0\u30fc\u306b\u5bfe\u3057\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u753b\u9762\u9818\u57df\u306e1\u3064\u4ee5\u4e0a\u306e\u77e9\u5f62\u3092\u518d\u63cf\u753b\u3059\u308b\u3088\u3046\u901a\u77e5\u3059\u308b\u305f\u3081\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u30c1\u30e3\u30cd\u30ebID 0x03ea\uff08\u30b5\u30fc\u30d0\u30fc \u30c1\u30e3\u30cd\u30ebID\uff09\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u30aa\u30fc\u30d7\u30f3 \u30c1\u30e3\u30cd\u30eb\u306b\u3082\u3068\u3065\u3044\u3066\u884c\u308f\u308c\u307e\u3059\u3002\u56f31\u306b\u793a\u3057\u305f\u63a5\u7d9a\u30b7\u30fc\u30b1\u30f3\u30b9\u304c\u7d42\u4e86\u3059\u308b\u3068\u3001Refresh Rect PDU\u306fRDP\u30b5\u30fc\u30d0\u30fc\u306b\u3088\u3063\u3066\u53d7\u4fe1\/\u30d1\u30fc\u30b9\u3055\u308c\u307e\u3059\u3002\u3053\u3053\u3067\u6700\u3082\u91cd\u8981\u306a\u306e\u304c\u3001\u6b63\u898f\u306e\u5834\u5408\u306b\u3082Refresh Rect PDU\u306f\u8907\u6570\u56de\u9001\u4fe1\u3055\u308c\u3046\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002TS_RECTANGLE16\u69cb\u9020\u4f53\u306b\u306f8\u30d0\u30a4\u30c8\u3068\u3044\u3046\u5236\u9650\u304c\u3042\u308a\u3001RDP\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3067\u5236\u5fa1\u3067\u304d\u308b\u306e\u306f8\u30d0\u30a4\u30c8\u306e\u307f\u3067\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u5236\u5fa1\u3067\u304d\u308b\u308f\u3051\u3067\u306f\u306a\u3044\u3067\u3059\u304c\u3001\u305d\u308c\u3067\u3082\u30ab\u30fc\u30cd\u30eb\u306b\u4efb\u610f\u306e\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u8fbc\u3080\u306b\u3042\u305f\u3063\u3066\u306f\u975e\u5e38\u306b\u826f\u3044\u5019\u88dc\u3068\u306a\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<h3><a id=\"post-99110-_heading=h.ogkg97714ma\"><\/a>Refresh Rect PDU\u3067\u30ab\u30fc\u30cd\u30eb\u306b\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u8fbc\u3080\u65b9\u6cd5<\/h3>\n<p>\u901a\u5e38\u306e\u5fa9\u53f7\u5316\u3055\u308c\u305fRefresh Rect PDU\u3092\u56f316\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n<p style=\"text-align: center;\"><img width=\"855\" height=\"583\"  class=\"wp-image-99142 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-25.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-25.png 855w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-25-300x205.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-25-768x524.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-25-370x252.png 370w\" sizes=\"(max-width: 855px) 100vw, 855px\" \/><span style=\"font-size: 10pt;\"><em>\u56f316 \u5fa9\u53f7\u5316\u3055\u308c\u305fRefresh Rect PDU <\/em><\/span><\/p>\n<p>\u30ab\u30fc\u30cd\u30eb\u30e2\u30b8\u30e5\u30fc\u30ebRDPWD.sys\u306e\u95a2\u6570WDW_InvalidateRect\u306f\u3001Refresh Rect PDU\u306e\u30d1\u30fc\u30b9\u3092\u62c5\u5f53\u3057\u3066\u3044\u307e\u3059\uff08\u56f317\u53c2\u7167\uff09\u3002<\/p>\n<p style=\"text-align: center;\"><img width=\"522\" height=\"263\"  class=\"wp-image-99144 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-26.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-26.png 522w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-26-300x151.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-26-370x186.png 370w\" sizes=\"(max-width: 522px) 100vw, 522px\" \/><span style=\"font-size: 10pt;\"><em>\u56f317 RDPWD!WDW_InvalidateRect\u306e\u30b9\u30bf\u30c3\u30af \u30c8\u30ec\u30fc\u30b9<\/em><\/span><\/p>\n<p>\u56f318\u306b\u793a\u3057\u305f\u3068\u304a\u308a\u3001WDW_InvalidateRect \u95a2\u6570\u306fRefresh Rect PDU\u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u30d1\u30fc\u30b9\u3057\u3001\u540c\u30b9\u30c8\u30ea\u30fc\u30e0\u304b\u3089\u30eb\u30fc\u30d7 \u30ab\u30a6\u30f3\u30c8\u3068\u3057\u3066numberOfAreas\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002\u3053\u308c\u306fbyte\u578b\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u306a\u306e\u3067\u3001numberOfAreas\u306e\u6700\u5927\u5024\u306f0xFF\u3067\u3001\u6700\u5927\u30eb\u30fc\u30d7\u30ab\u30a6\u30f3\u30c8\u30820xFF\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u30eb\u30fc\u30d7\u5185\u3067\u3001WDW_InvalidateRect\u95a2\u6570\u306fTS_RECTANGLE16\u69cb\u9020\u4f53\u306e\u5de6\u3001\u4e0a\u3001\u53f3\u3001\u304a\u3088\u3073\u4e0b\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u53d6\u5f97\u3057\u3001\u305d\u308c\u3089\u3092\u30b9\u30bf\u30c3\u30af\u4e0a\u306e\u69cb\u9020\u4f53\u306b\u5165\u308c\u3001WDICART_IcaChannelInput\u306e5\u756a\u76ee\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3057\u307e\u3059\u3002\u8a71\u304c\u3067\u305f\u3064\u3044\u3067\u306b\u8a00\u53ca\u3057\u3066\u304a\u304f\u3068\u3001WDICART_IcaChannelInput\u306e6\u756a\u76ee\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u306f\u5b9a\u65700x808\u3067\u3001\u3053\u306e\u5b9a\u6570\u304c\u52b9\u7387\u7684\u306a\u30b9\u30d7\u30ec\u30fc\u306b\u3069\u306e\u3088\u3046\u306b\u5f79\u7acb\u3064\u304b\u306f\u5f8c\u3067\u793a\u3057\u307e\u3059\u3002<\/p>\n<p style=\"text-align: center;\"><img width=\"1050\" height=\"652\"  class=\"wp-image-99146 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-27.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-27.png 1050w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-27-300x186.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-27-768x477.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-27-1024x636.png 1024w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-27-900x559.png 900w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-27-370x230.png 370w\" sizes=\"(max-width: 1050px) 100vw, 1050px\" \/><span style=\"font-size: 10pt;\"><em>\u56f318 RDPWD!WDW_InvalidateRect\u95a2\u6570<\/em><\/span><\/p>\n<p>WDICART_IcaChannelInput\u306f\u6700\u7d42\u7684\u306b\u30ab\u30fc\u30cd\u30eb\u30e2\u30b8\u30e5\u30fc\u30ebtermdd.sys\u306e\u95a2\u6570IcaChannelInputInternal\u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002\u4e00\u9023\u306e\u6761\u4ef6\u30c1\u30a7\u30c3\u30af\u304cTrue\u306e\u5834\u5408\u3001\u95a2\u6570IcaChannelInputInternal\u306fExAllocatePoolWithTag\u3092\u547c\u3073\u51fa\u3057\u3066\u3001inputSize_6th_para + 0x20\u3068\u3044\u3046\u30b5\u30a4\u30ba\u306e\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u3092\u5272\u308a\u5f53\u3066\u307e\u3059\uff08\u56f319\u53c2\u7167\uff09\u3002\u3053\u306e\u305f\u3081\u3001\u95a2\u6570IcaChannelInputInternal\u304cRDPWD!WDW_InvalidateRect\u306b\u547c\u3073\u51fa\u3055\u308c\u305f\u6642\u70b9\u3067\u3001inputSize_6th_para=0x808\u3068\u306a\u308a\u3001\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u306e\u30b5\u30a4\u30ba\u306f0x828\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p style=\"text-align: center;\"><img width=\"919\" height=\"315\"  class=\"wp-image-99148 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-28.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-28.png 919w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-28-300x103.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-28-768x263.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-28-900x308.png 900w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-28-370x127.png 370w\" sizes=\"(max-width: 919px) 100vw, 919px\" \/><span style=\"font-size: 10pt;\"><em>\u56f319 termdd!IcaChannelInputInternal ExAllocatePoolWithTag\u3068memcpy<\/em><\/span><\/p>\n<p>\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u306e\u5272\u308a\u5f53\u3066\u304c\u6210\u529f\u3059\u308b\u3068\u3001memcpy\u304c\u547c\u3073\u51fa\u3055\u308c\u3001memcpy\u304cinput_buffer_2\u3092\u65b0\u3057\u304f\u5272\u308a\u5f53\u3066\u3089\u308c\u305f\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb \u30e1\u30e2\u30ea\u306b\u30b3\u30d4\u30fc\u3057\u307e\u3059\u3002\u56f320\u306f\u3001\u547c\u3073\u51fa\u3057\u5143\u304cRDPWD!WDW_InvalidateRect\u3067\u3042\u308b\u5834\u5408\u306ememcpy\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p style=\"text-align: center;\"><img width=\"631\" height=\"237\"  class=\"wp-image-99150 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-29.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-29.png 631w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-29-300x113.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-29-370x139.png 370w\" sizes=\"(max-width: 631px) 100vw, 631px\" \/><span style=\"font-size: 10pt;\"><em>\u56f320 termdd!IcaChannelInputInternal\u306ememcpy\u306ewindbg\u30c0\u30f3\u30d7<\/em><\/span><\/p>\n<p>\u3053\u3053\u3067\u8208\u5473\u6df1\u3044\u306e\u304c\u3001\u95a2\u6570memcpy\u306e\u30bd\u30fc\u30b9 \u30a2\u30c9\u30ec\u30b9\u306fRDPWD!WDW_InvalidateRect\u306e\u30b9\u30bf\u30c3\u30af\u4e0a\u306b\u3042\u308bstRect\u69cb\u9020\u4f53\u304b\u3089\u304d\u3066\u3044\u3066\u3001RDPWD!WDW_InvalidateRect\u306b\u306f\u6700\u521d\u306e3 DWORD\u3057\u304b\u30bb\u30c3\u30c8\u3055\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u3067\u3059\uff08\u56f321\u53c2\u7167)\u3002\u6b8b\u3063\u305f\u30e1\u30e2\u30ea\u306f\u30b9\u30bf\u30c3\u30af\u4e0a\u3067\u521d\u671f\u5316\u3055\u308c\u3066\u3044\u306a\u3044\u30b3\u30f3\u30c6\u30f3\u30c4\u3067\u3001\u3053\u3053\u304b\u3089\u306f\u5bb9\u6613\u306b\u60c5\u5831\u3092\u6f0f\u3048\u3044\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u30b5\u30a4\u30ba\u304c0x808\u306e\u30e1\u30e2\u30ea\u306b12\u30d0\u30a4\u30c8\u306e\u30c7\u30fc\u30bf\u3092\u4fdd\u5b58\u3059\u308b\u3068\u3044\u3046\u306e\u3082\u30b9\u30d7\u30ec\u30fc\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p style=\"text-align: center;\"><img width=\"847\" height=\"320\"  class=\"wp-image-99152 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-30.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-30.png 847w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-30-300x113.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-30-768x290.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-30-370x140.png 370w\" sizes=\"(max-width: 847px) 100vw, 847px\" \/><span style=\"font-size: 10pt;\"><em>\u56f321 RDPWD!WDW_InvalidateRect\u306estRect\u69cb\u9020\u306e\u30bb\u30c3\u30c8<\/em><\/span><\/p>\n<p>\u3053\u306e\u60c5\u5831\u3092\u5229\u7528\u3057\u3066\u3001RDP\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304cnumberOfAreas\u30d5\u30a3\u30fc\u30eb\u30c9\u30920xFF\u306b\u3057\u305fRefresh Rect PDU\u30921\u3064\u9001\u4fe1\u3059\u308c\u3070\u3001RDP\u30b5\u30fc\u30d0\u30fc\u306ftermdd!IcaChannelInputInternal\u30920xFF\u56de\u547c\u3073\u51fa\u3057\u3001termdd!IcaChannelInputInternal\u306e\u547c\u3073\u51fa\u3057\u3054\u3068\u306b0x828\u30d0\u30a4\u30c8\u5206\u306e\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb \u30e1\u30e2\u30ea\u3092\u5272\u308a\u5f53\u3066\u3001\u305d\u306e\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u306b\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u5236\u5fa1\u3059\u308bTS_RECTANGLE16\u69cb\u9020\u4f53\u306e8\u30d0\u30a4\u30c8\u5206\u3092\u30b3\u30d4\u30fc\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001numberOfAreas\u30d5\u30a3\u30fc\u30eb\u30c9\u304c0xFF\u306b\u8a2d\u5b9a\u3055\u308c\u305fRefresh Rect PDU\u3072\u3068\u3064\u3067\u30010x828\u3068\u3044\u3046\u30b5\u30a4\u30ba\u306e\u30ab\u30fc\u30cd\u30eb\u30d7\u30fc\u30eb\u304c0xFF\u500b\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u7406\u8ad6\u4e0a\u3067\u306f\u3001RDP\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304cRefresh Rect PDU\u30920x200\u56de\u9001\u4fe1\u3059\u308c\u3070\u3001RDP\u30b5\u30fc\u30d0\u30fc\u306f0x828\u3068\u3044\u3046\u30b5\u30a4\u30ba\u306e\u975e\u30da\u30fc\u30b8 \u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u3092\u7d040x20000\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u30b5\u30a4\u30ba\u304c0x828\u306e\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u304c\u30b5\u30a4\u30ba0x1000\u3054\u3068\u306b\u4e26\u3076\u306e\u3067\u3001\u3053\u308c\u3089\u306f\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u306e\u975e\u5e38\u306b\u5e83\u3044\u7bc4\u56f2\u306b\u307e\u305f\u304c\u3063\u3066\u5e83\u304c\u308a\u307e\u3059\u3057\u3001\u540c\u6642\u306b\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u5236\u5fa1\u3059\u308b8\u30d0\u30a4\u30c8\u306e\u30c7\u30fc\u30bf\u304c\u54040x1000\u306e\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u306e\u56fa\u5b9a\u306e\u30aa\u30d5\u30bb\u30c3\u30c80x02c\u306e\u4f4d\u7f6e\u306b\u30b3\u30d4\u30fc\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u69d8\u5b50\u3092\u56f322\u306b\u793a\u3057\u307e\u3059\u3002\u3064\u307e\u308a\u3001RefreshRect PDU\u3092\u4f7f\u7528\u3059\u308c\u3070\u3001\u30ab\u30fc\u30cd\u30eb\u306b\u5b89\u5b9a\u3057\u3066\u30d7\u30fc\u30eb \u30b9\u30d7\u30ec\u30fc\u304c\u5f97\u3089\u308c\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p style=\"text-align: center;\"><img width=\"1162\" height=\"590\"  class=\"wp-image-99154 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-31.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-31.png 1162w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-31-300x152.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-31-768x390.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-31-1024x520.png 1024w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-31-900x457.png 900w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-31-370x188.png 370w\" sizes=\"(max-width: 1162px) 100vw, 1162px\" \/><span style=\"font-size: 10pt;\"><em>\u56f322 RDPWD!WDW_InvalidateRect\u30b9\u30d7\u30ec\u30fc<\/em><\/span><\/p>\n<p>\u30dd\u30a4\u30f3\u30bf\uff08\u56f323\u306e\u5909\u6570v14\uff09\u304ctermdd!_IcaQueueReadChannelRequest\u306b\u3088\u3063\u3066\u5909\u66f4\u3055\u308c\u305f\u3068\u304d\u3001ExAllocatePoolWithTag\u3068memcpy\u304c\u547c\u3073\u51fa\u3055\u308c\u305a\u3001\u56f323\u306b\u793a\u3059\u3088\u3046\u306b\u6bd4\u8f03\u304cFalse\u306b\u306a\u308b\u3068\u3001\u30eb\u30fc\u30c1\u30f3\u304c_IcaCopyDataToUserBuffer\u30eb\u30fc\u30c1\u30f3\u306b\u5165\u308a\u3001\u30d7\u30fc\u30eb\u306e\u5272\u308a\u5f53\u3066\u306b\u5931\u6557\u3059\u308b\u30b1\u30fc\u30b9\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u3046\u3057\u305f\u30b1\u30fc\u30b9\u3067\u3042\u3063\u3066\u3082\u3001Refresh Rect PDU\u3092\u7e70\u308a\u8fd4\u3057\u9001\u4fe1\u3059\u308c\u3070\u3001\u30d7\u30fc\u30eb\u306e\u5272\u308a\u5f53\u3066\u306b\u4f55\u5ea6\u304b\u5931\u6557\u306f\u3057\u3066\u3082\u3001\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u306e\u30b9\u30d7\u30ec\u30fc\u306b\u306f\u6210\u529f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u306b\u52a0\u3048\u3001RDP\u30b5\u30fc\u30d0\u30fc\u304c\u4f7f\u7528\u5f8c\u306e\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u3092\u89e3\u653e\u3059\u308b\u3055\u3044\u3001\u305d\u306e\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u30af\u30ea\u30a2\u305b\u305a\u3001\u30ab\u30fc\u30cd\u30eb\u306b\u30b9\u30d7\u30ec\u30fc\u3059\u308b\u30c7\u30fc\u30bf\u3092\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u4e0a\u6709\u52b9\u306b\u4f7f\u3048\u308b\u30b1\u30fc\u30b9\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p style=\"text-align: center;\"><img width=\"1022\" height=\"551\"  class=\"wp-image-99156 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-32.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-32.png 1022w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-32-300x162.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-32-768x414.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-32-900x485.png 900w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-32-370x199.png 370w\" sizes=\"(max-width: 1022px) 100vw, 1022px\" \/><span style=\"font-size: 10pt;\"><em>\u56f323 termdd!IcaChannelInputInternal IcaCopyDataToUserBuffer<\/em><\/span><\/p>\n<h3><a id=\"post-99110-_heading=h.o4vm8nic5by6\"><\/a>RDPDR Client Name Request PDU<\/h3>\n<p><a href=\"https:\/\/docs.microsoft.com\/en-us\/openspecs\/windows_protocols\/ms-rdpefs\/34d9de58-b2b5-40b6-b970-f82d4603bdb5\">MS-RDPEFS<\/a>\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u3088\u308c\u3070\u3001RDPDR Client Name Request PDU\u306f\u300cRemote Desktop Protocol: File System Virtual Channel Extension\u300d\u3067\u8aac\u660e\u3055\u308c\u3066\u304a\u308a\u3001\u30b9\u30bf\u30c6\u30a3\u30c3\u30af\u306a\u4eee\u60f3\u30c1\u30e3\u30cd\u30eb\u4e0a\u3067RDPDR\u3068\u3044\u3046\u540d\u524d\u3067\u7a3c\u50cd\u3057\u3066\u3044\u307e\u3059\u3002MS-RDPEFS\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u76ee\u7684\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u30af\u30e9\u30a4\u30a2\u30f3\u30c8 \u30d5\u30a1\u30a4\u30eb \u30b7\u30b9\u30c6\u30e0\u306b\u30a2\u30af\u30bb\u30b9\u3092\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3059\u308b\u3053\u3068\u3067\u3059\u3002Client Name Request\u306f\u3001\u56f324\u306b\u793a\u3059\u3088\u3046\u306b\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u30b5\u30fc\u30d0\u30fc\u306b\u9001\u4fe1\u3055\u308c\u308b2\u756a\u76ee\u306ePDU\u3067\u3059\u3002<\/p>\n<p style=\"text-align: center;\"><img width=\"684\" height=\"729\"  class=\"wp-image-99158 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-33.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-33.png 684w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-33-281x300.png 281w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-33-370x394.png 370w\" sizes=\"(max-width: 684px) 100vw, 684px\" \/><span style=\"font-size: 10pt;\"><em>\u56f324 File System Virtual Channel Extension \u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u521d\u671f\u5316<\/em><\/span><\/p>\n<p>\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u3001Client Name Request PDU\u3092\u4f7f\u3063\u3066\u30de\u30b7\u30f3\u540d\u3092\u30b5\u30fc\u30d0\u30fc\u306b\u9001\u4fe1\u3057\u307e\u3059\uff08\u56f325\u53c2\u7167\uff09\u3002<\/p>\n<p style=\"text-align: center;\"><img width=\"884\" height=\"454\"  class=\"wp-image-99160 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-34.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-34.png 884w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-34-300x154.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-34-768x394.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-34-370x190.png 370w\" sizes=\"(max-width: 884px) 100vw, 884px\" \/><span style=\"font-size: 10pt;\"><em>\u56f325 Client Name Request (DR_CORE_CLIENT_NAME_REQ)<\/em><\/span><\/p>\n<p>\u30d8\u30c3\u30c0\u306f4\u30d0\u30a4\u30c8\u306eRDPDR_HEADER\u3067\u3001Component\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u306fRDPDR_CTYP_CORE\u304c\u30bb\u30c3\u30c8\u3055\u308c\u3001PacketId\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u306fPAKID_CORE_CLIENT_NAME\u304c\u30bb\u30c3\u30c8\u3055\u308c\u3066\u3044\u307e\u3059\u3002ComputerNameLen\u30d5\u30a3\u30fc\u30eb\u30c9\uff084\u30d0\u30a4\u30c8\uff09\u306f\u3001ComputerName\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u30d0\u30a4\u30c8\u9577\u3092\u6307\u5b9a\u3059\u308b32\u30d3\u30c3\u30c8\u306e\u7b26\u53f7\u306a\u3057\u6574\u6570\u3067\u3059\u3002ComputerName\u30d5\u30a3\u30fc\u30eb\u30c9\uff08\u53ef\u5909\u9577\uff09\u306f\u3001ASCII\u307e\u305f\u306fUnicode\u6587\u5b57\u306e\u53ef\u5909\u9577\u914d\u5217\u3067\u3001\u305d\u306e\u5f62\u5f0f\u306fUnicodeFlag\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u3088\u3063\u3066\u6c7a\u5b9a\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8 \u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u540d\u3092\u8b58\u5225\u3059\u308b\u6587\u5b57\u5217\u3067\u3059\u3002<\/p>\n<h3><a id=\"post-99110-_heading=h.hb3ww4hdp396\"><\/a>RDPDR Client Name Request PDU\u3092\u4f7f\u7528\u3057\u3066\u30ab\u30fc\u30cd\u30eb\u306b\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u8fbc\u3080\u65b9\u6cd5<\/h3>\n<p>RDPDR Client Name Request PDU\u306b\u3064\u3044\u3066\u306f\u3001\u6b21\u306e\u3053\u3068\u304c\u8a00\u3048\u307e\u3059\u3002<\/p>\n<ul>\n<li>Client Name Request PDU\u306f\u6b63\u898f\u306e\u65b9\u6cd5\u3067\u8907\u6570\u56de\u9001\u4fe1\u53ef\u80fd\u3002<\/li>\n<li>\u5404\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u5bfe\u3057\u3001RDP\u30b5\u30fc\u30d0\u30fc\u306f\u60c5\u5831\u683c\u7d0d\u7528\u306e\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u3092\u5272\u308a\u5f53\u3066\u308b\u3002<\/li>\n<li>\u6700\u3082\u91cd\u8981\u306a\u306e\u306f\u3001PDU\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u9577\u304cRDP\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u3067\u5b8c\u5168\u306b\u5236\u5fa1\u53ef\u80fd\u3067\u3042\u308b\u3053\u3068\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u3088\u308a\u3001\u3053\u306e\u65b9\u6cd5\u306f\u30ab\u30fc\u30cd\u30eb \u30e1\u30e2\u30ea\u306b\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u8fbc\u3080\u306e\u306b\u3046\u3063\u3066\u3064\u3051\u306e\u9078\u629e\u3068\u3044\u3048\u307e\u3059\u3002\u5178\u578b\u7684\u306aRDPDR Client Name Request PDU\u3092\u56f326\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n<p style=\"text-align: center;\"><img width=\"608\" height=\"360\"  class=\"wp-image-99162 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-35.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-35.png 608w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-35-300x178.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-35-370x219.png 370w\" sizes=\"(max-width: 608px) 100vw, 608px\" \/><span style=\"font-size: 10pt;\"><em>\u56f326 Client Name Request PDU\u306e\u30e1\u30e2\u30ea\u30c0\u30f3\u30d7<\/em><\/span><\/p>\n<p>RDP\u30b5\u30fc\u30d0\u30fc\u304cClient Name Request PDU\u3092\u53d7\u4fe1\u3059\u308b\u3068\u3001\u30ab\u30fc\u30cd\u30eb\u30e2\u30b8\u30e5\u30fc\u30ebtermdd.sys\u306e\u95a2\u6570IcaChannelInputInternal\u304c\u6700\u521d\u306b\u547c\u3073\u51fa\u3055\u308c\u3001\u307e\u305a\u306f\u30c1\u30e3\u30cd\u30eb\u30c7\u30fc\u30bf\u3092\u30c7\u30a3\u30b9\u30d1\u30c3\u30c1\u3057\u3001\u6b21\u306bRDPDR\u30e2\u30b8\u30e5\u30fc\u30eb\u304c\u547c\u3073\u51fa\u3055\u308c\u3066Client Name Request PDU\u306e\u30c7\u30fc\u30bf\u90e8\u5206\u3092\u30d1\u30fc\u30b9\u3057\u307e\u3059\u3002Client Name Request PDU\u7528\u306e\u95a2\u6570IcaChannelInputInternal\u306f\u3001Refresh Rect PDU\u306e\u3082\u306e\u3068\u540c\u69d8\u306e\u30b3\u30fc\u30c9 \u30ed\u30b8\u30c3\u30af\u3092\u63a1\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u3064\u307e\u308a\u3001TSic \u30bf\u30b0\u3092\u6307\u5b9a\u3057\u3066ExAllocatePoolWithTag\u3092\u547c\u3073\u51fa\u3057\u3066\u30ab\u30fc\u30cd\u30eb\u30e1\u30e2\u30ea\u3092\u5272\u308a\u5f53\u3066\u3001memcpy\u3092\u4f7f\u7528\u3057\u3066Client Name Request Data\u3092\u65b0\u3057\u304f\u5272\u308a\u5f53\u3066\u3089\u308c\u305f\u30ab\u30fc\u30cd\u30eb \u30e1\u30e2\u30ea\u306b\u30b3\u30d4\u30fc\u3057\u307e\u3059\uff08\u56f327\u53c2\u7167\uff09\u3002<\/p>\n<p style=\"text-align: center;\"><img width=\"739\" height=\"721\"  class=\"wp-image-99164 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-36.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-36.png 739w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-36-300x293.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-36-370x361.png 370w\" sizes=\"(max-width: 739px) 100vw, 739px\" \/><span style=\"font-size: 10pt;\"><em>\u56f327 Client Name Request<\/em><\/span><\/p>\n<p>\u3053\u3053\u307e\u3067\u3067\u79c1\u305f\u3061\u306f\u3001\u30b3\u30d4\u30fc\u3055\u308c\u305f\u30c7\u30fc\u30bf\u30b3\u30f3\u30c6\u30f3\u30c4\u3068\u305d\u306e\u9577\u3055\u306e\u4e21\u65b9\u304cRDP\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u5236\u5fa1\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u307e\u305f\u3001Client Name Request PDU \u306f\u3001\u6b63\u898f\u306e\u65b9\u6cd5\u3067\u8907\u6570\u56de\u9001\u4fe1\u3067\u304d\u308b\u3053\u3068\u3082\u793a\u3057\u307e\u3057\u305f\u3002Client Name Request PDU\u306f\u67d4\u8edf\u6027\u306b\u3059\u3050\u308c\u3001\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3057\u3084\u3059\u3044\u7279\u6027\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u3053\u3068\u304b\u3089\u3001\u89e3\u653e\u3055\u308c\u305f\u30ab\u30fc\u30cd\u30eb\u30d7\u30fc\u30eb\u3092\u518d\u8981\u6c42\u3059\u308bUAF\uff08Use After Free\uff09\u8106\u5f31\u6027\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306e\u76ee\u7684\u306b\u3082\u3001\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u306b\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9\u3092\u66f8\u304d\u8fbc\u3080\u76ee\u7684\u306b\u3082\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u3067\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3067\u304d\u308b\u9023\u7d9a\u3057\u305f\u30c7\u30fc\u30bf\u3092\u30ab\u30fc\u30cd\u30eb \u30e1\u30e2\u30ea\u306b\u30b9\u30d7\u30ec\u30fc\u3059\u308b\u3068\u3044\u3046\u76ee\u7684\u306b\u3082\u3001Client Name Request PDU\u3092\u4f7f\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u56f328\u306b\u793a\u3059\u3088\u3046\u306b\u3001\u79c1\u305f\u3061\u306fRDPDR Client Name Request PDU\u3092\u4f7f\u7528\u3057\u3001\u5b89\u5b9a\u3057\u3066\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u5272\u308a\u5f53\u3066\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u306b\u6210\u529f\u3057\u305f\u307b\u304b\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3059\u308b\u30c7\u30fc\u30bf\u3092\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u306b\u66f8\u304d\u8fbc\u3080\u3053\u3068\u306b\u3082\u6210\u529f\u3057\u307e\u3057\u305f\u3002<\/p>\n<p style=\"text-align: center;\"><img width=\"711\" height=\"362\"  class=\"wp-image-99166 aligncenter lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-37.png\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-37.png 711w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-37-300x153.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-37-370x188.png 370w\" sizes=\"(max-width: 711px) 100vw, 711px\" \/><span style=\"font-size: 10pt;\"><em>\u56f328 Client Name Request PDU\u3092\u4f7f\u3063\u3066\u5b89\u5b9a\u7684\u306b\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u306e\u5272\u308a\u5f53\u3066\u3092\u53d6\u5f97<\/em><\/span><\/p>\n<h2><b>\u672c\u8106\u5f31\u6027\u306e\u691c\u51fa\u3068\u7de9\u548c<\/b><\/h2>\n<p>CVE-2019-0708\u306fRDP\u3092\u6a19\u7684\u3068\u3059\u308b\u91cd\u5927\u306a\u8106\u5f31\u6027\u3067\u3001\u8a8d\u8a3c\u306a\u3057\u3067\u306e\u30a2\u30af\u30bb\u30b9\u3001\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u304c\u53ef\u80fd\u3067\u3059\u3002<a href=\"https:\/\/portal.msrc.microsoft.com\/en-US\/security-guidance\/advisory\/CVE-2019-0708\">MSRC\u30a2\u30c9\u30d0\u30a4\u30b6\u30ea<\/a>\u306b\u3088\u308b\u3068\u3001Windows XP\u3001Windows 2003\u3001Windows 7\u304a\u3088\u3073Windows 2008\u306f\u3059\u3079\u3066\u3001\u672c\u8106\u5f31\u6027\u306e\u5f71\u97ff\u3092\u53d7\u3051\u307e\u3059\u3002\u3053\u308c\u3089\u306eWindows\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u7d44\u7e54\u306f\u3001\u540c\u8105\u5a01\u3092\u9632\u3050\u305f\u3081\u306b\u3001\u8a72\u5f53\u3059\u308b\u30b7\u30b9\u30c6\u30e0\u306b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u304c\u5f37\u304f\u63a8\u5968\u3055\u308c\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u53ef\u80fd\u306a\u304b\u304e\u308a\u7d44\u7e54\u5916\u304b\u3089\u306eRDP\u30a2\u30af\u30bb\u30b9\u3092\u7121\u52b9\u306a\u3044\u3057\u5236\u9650\u3059\u3079\u304d\u3067\u3059\u3002<\/p>\n<p>\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306e\u304a\u5ba2\u69d8\u306f\u3001\u6b21\u306e\u65b9\u6cd5\u3067\u672c\u8106\u5f31\u6027\u304b\u3089\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li style=\"font-weight: 400;\">Traps\u306f\u3001Windows XP\u3001Windows 7\u3001Windows Server 2003\u3001Windows Server 2008\u306e\u5404\u30db\u30b9\u30c8\u306b\u5bfe\u3059\u308b\u672c\u8106\u5f31\u6027\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3092\u9632\u6b62\u3057\u307e\u3059\u3002<\/li>\n<li style=\"font-weight: 400;\">Threat Prevention\u306f\u672c\u8106\u5f31\u6027\u3092\u4f7f\u3063\u305f\u30b9\u30ad\u30e3\u30ca\u304a\u3088\u3073\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3092\u691c\u51fa\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2><b>\u7d50\u8ad6<\/b><\/h2>\n<div>\n<p>\u672c\u7a3f\u3067\u79c1\u305f\u3061\u306f\u3001RDP\u306ePDU\u3092\u4f7f\u3063\u3066\u30ab\u30fc\u30cd\u30eb\u306b\u4efb\u610f\u306e\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u8fbc\u30803\u3064\u306e\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002<\/p>\n<ul>\n<li>Bitmap Cache PDU\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\u3001RDP\u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30b5\u30a4\u30ba\u304c0x2b5200\u306e\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u3092\u5272\u308a\u5f53\u3066\u305f\u5f8c\u3001\u30b5\u30a4\u30ba0xc3870\u306e\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u3092\u5272\u308a\u5f53\u3066\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u5236\u5fa1\u53ef\u80fd\u306a\u30c7\u30fc\u30bf\u3092\u305d\u3053\u306b\u66f8\u304d\u8fbc\u3080\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u30b5\u30a4\u30ba0xc3870\u306e\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u5272\u308a\u5f53\u3066\u306f\u30011\u56de\u3057\u304b\u5b9f\u884c\u3067\u304d\u307e\u305b\u3093\u3002<\/li>\n<li>Refresh Rect PDU\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\u3001\u30b5\u30a4\u30ba0x1000\u3054\u3068\u306b\u4e26\u3093\u3060\u30b5\u30a4\u30ba0x828\u306e\u30ab\u30fc\u30cd\u30eb\u30d7\u30fc\u30eb\u3092\u591a\u6570\u30b9\u30d7\u30ec\u30fc\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u5404\u30b5\u30a4\u30ba0x828\u306e\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u306b\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u5236\u5fa1\u53ef\u80fd\u306a\u30c7\u30fc\u30bf\u30928\u30d0\u30a4\u30c8\u5206\u66f8\u304d\u8fbc\u3080\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<li>RDPDR Client Name Request PDU\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u53ef\u80fd\u306a\u30b5\u30a4\u30ba\u306e\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u3092\u30b9\u30d7\u30ec\u30fc\u3067\u304d\u3001\u305d\u306e\u30ab\u30fc\u30cd\u30eb \u30d7\u30fc\u30eb\u3092\u3084\u306f\u308a\u30e6\u30fc\u30b6\u30fc\u304c\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u53ef\u80fd\u306a\u30c7\u30fc\u30bf\u3067\u57cb\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>\u79c1\u305f\u3061\u306f\u3053\u306e\u307b\u304b\u306b\u3082\u3001\u307e\u3060\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u5316\u3055\u308c\u3066\u3044\u306a\u3044\u3001\u5bb9\u6613\u304b\u3064\u5b89\u5b9a\u7684\u306bCVE-2019-0708\u3092\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3067\u304d\u308b\u65b9\u6cd5\u304c\u3042\u308b\u3082\u306e\u3068\u8003\u3048\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u30e6\u30fc\u30b6\u30fc\u306f\u3001\u4e0a\u8a18\u306e\u691c\u51fa\u30fb\u7de9\u548c\u7b56\u306e\u3044\u305a\u308c\u304b\u3092\u4f7f\u7528\u3057\u3001\u8106\u5f31\u306a\u30b7\u30b9\u30c6\u30e0\u304c\u4fdd\u8b77\u3055\u308c\u308b\u3088\u3046\u5bfe\u7b56\u3092\u8b1b\u3058\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n<p>\u672c\u7a3f\u306e\u7de8\u96c6\u306b\u5354\u529b\u3057\u3066\u304f\u3060\u3055\u3063\u305fMike Harbison\u306b\u3001\u3053\u306e\u5834\u3092\u501f\u308a\u3066\u611f\u8b1d\u3092\u7533\u3057\u4e0a\u3052\u307e\u3059\u3002\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3057\u305f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30a8\u30b0\u30bc\u30af\u30c6\u30a3\u30d6\u30b5\u30de\u30ea\u30fc 2019\u5e745\u6708\u3001Microsoft\u306f\u5b9a\u4f8b\u5916\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u516c\u958b\u3057\u307e\u3057\u305f\u3002 \u30ea\u30e2\u30fc\u30c8\u30b3\u30fc\u30c9\u5b9f\u884c\u306e\u8106\u5f31\u6027\u3067\u3042\u308bCVE-2019-0708\u306b\u5bfe\u5fdc\u3059\u308b\u305f\u3081\u3067\u3001\u540c\u8106\u5f31\u6027\u306f\u300cBlueKeep\u300d\u3068<\/p>\n","protected":false},"author":57,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[4469,4428,4470],"tags":[6199,6200,6043],"product_categories":[],"coauthors":[71,206],"class_list":["post-99260","post","type-post","status-publish","format-standard","hentry","category-vulnerabilities","category-threat-research-ja","category-vulnerabilities-ja","tag-bluekeep-ja","tag-cve-2019-0708","tag-rdp-ja"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.0 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Windows CVE-2019-0708\uff08BlueKeep\uff09\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u89e3\u8aac\uff1aRDP PDU\u3092\u4f7f\u7528\u3057\u3066\u30ab\u30fc\u30cd\u30eb\u306b\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u8fbc\u30803\u3064\u306e\u65b9\u6cd5<\/title>\n<meta name=\"description\" content=\"Microsoft\u304c2019\u5e745\u6708\u306b\u516c\u958b\u3057\u305f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u542b\u307e\u308c\u308b BlueKeep (CVE-2019-0708) \u8106\u5f31\u6027\u304c\u3001\u653b\u6483\u30b0\u30eb\u30fc\u30d7\u306b\u3088\u3063\u3066\u3069\u306e\u3088\u3046\u306b\u60aa\u7528\u3055\u308c\u3046\u308b\u306e\u304b\u3092 Unit 42 \u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u304c\u89e3\u8aac\u3057\u307e\u3059\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/unit42.paloaltonetworks.com\/ja\/exploitation-of-windows-cve-2019-0708-bluekeep-three-ways-to-write-data-into-the-kernel-with-rdp-pdu\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Windows CVE-2019-0708\uff08BlueKeep\uff09\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u89e3\u8aac\uff1aRDP PDU\u3092\u4f7f\u7528\u3057\u3066\u30ab\u30fc\u30cd\u30eb\u306b\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u8fbc\u30803\u3064\u306e\u65b9\u6cd5\" \/>\n<meta property=\"og:description\" content=\"Microsoft\u304c2019\u5e745\u6708\u306b\u516c\u958b\u3057\u305f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u542b\u307e\u308c\u308b BlueKeep (CVE-2019-0708) \u8106\u5f31\u6027\u304c\u3001\u653b\u6483\u30b0\u30eb\u30fc\u30d7\u306b\u3088\u3063\u3066\u3069\u306e\u3088\u3046\u306b\u60aa\u7528\u3055\u308c\u3046\u308b\u306e\u304b\u3092 Unit 42 \u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u304c\u89e3\u8aac\u3057\u307e\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/unit42.paloaltonetworks.com\/ja\/exploitation-of-windows-cve-2019-0708-bluekeep-three-ways-to-write-data-into-the-kernel-with-rdp-pdu\/\" \/>\n<meta property=\"og:site_name\" content=\"Unit 42\" \/>\n<meta property=\"article:published_time\" content=\"2019-08-30T07:43:13+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2019-09-05T05:19:40+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/08\/word-image-11.png\" \/>\n<meta name=\"author\" content=\"Tao Yan, Jin Chen\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Windows CVE-2019-0708\uff08BlueKeep\uff09\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u89e3\u8aac\uff1aRDP PDU\u3092\u4f7f\u7528\u3057\u3066\u30ab\u30fc\u30cd\u30eb\u306b\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u8fbc\u30803\u3064\u306e\u65b9\u6cd5\" \/>\n<meta name=\"twitter:description\" content=\"Microsoft\u304c2019\u5e745\u6708\u306b\u516c\u958b\u3057\u305f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u542b\u307e\u308c\u308b BlueKeep (CVE-2019-0708) \u8106\u5f31\u6027\u304c\u3001\u653b\u6483\u30b0\u30eb\u30fc\u30d7\u306b\u3088\u3063\u3066\u3069\u306e\u3088\u3046\u306b\u60aa\u7528\u3055\u308c\u3046\u308b\u306e\u304b\u3092 Unit 42 \u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u304c\u89e3\u8aac\u3057\u307e\u3059\u3002\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Windows CVE-2019-0708\uff08BlueKeep\uff09\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u89e3\u8aac\uff1aRDP PDU\u3092\u4f7f\u7528\u3057\u3066\u30ab\u30fc\u30cd\u30eb\u306b\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u8fbc\u30803\u3064\u306e\u65b9\u6cd5","description":"Microsoft\u304c2019\u5e745\u6708\u306b\u516c\u958b\u3057\u305f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u542b\u307e\u308c\u308b BlueKeep (CVE-2019-0708) \u8106\u5f31\u6027\u304c\u3001\u653b\u6483\u30b0\u30eb\u30fc\u30d7\u306b\u3088\u3063\u3066\u3069\u306e\u3088\u3046\u306b\u60aa\u7528\u3055\u308c\u3046\u308b\u306e\u304b\u3092 Unit 42 \u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u304c\u89e3\u8aac\u3057\u307e\u3059\u3002","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/unit42.paloaltonetworks.com\/ja\/exploitation-of-windows-cve-2019-0708-bluekeep-three-ways-to-write-data-into-the-kernel-with-rdp-pdu\/","og_locale":"ja_JP","og_type":"article","og_title":"Windows 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