{"id":108869,"date":"2019-03-28T06:00:03","date_gmt":"2019-03-28T13:00:03","guid":{"rendered":"https:\/\/unit42.paloaltonetworks.com\/?p=108869"},"modified":"2020-09-24T18:52:06","modified_gmt":"2020-09-25T01:52:06","slug":"disclosing-directory-traversal-vulnerability-kubernetes-copy-cve-2019-1002101","status":"publish","type":"post","link":"https:\/\/unit42.paloaltonetworks.com\/ja\/disclosing-directory-traversal-vulnerability-kubernetes-copy-cve-2019-1002101\/","title":{"rendered":"Kubernetes\u30b3\u30d4\u30fc\u3067\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u306e\u8106\u5f31\u6027\u306e\u958b\u793a \u2013 CVE-2019-1002101"},"content":{"rendered":"<h2>\u6982\u8981<\/h2>\n<p>2019\u5e743\u67084\u65e5\u3001\u79c1\u306fKubernetes\u304a\u3088\u3073OpenShift\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c1\u30fc\u30e0\u306bkubectl\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8106\u5f31\u6027\u3092\u5831\u544a\u3057\u307e\u3057\u305f\u3002\u305d\u306e\u5f8c\u3001\u3053\u306e\u8106\u5f31\u6027\u306b\u306fCVE-2019-1002101\u304c\u5272\u308a\u632f\u3089\u308c\u307e\u3057\u305f\u3002\u672c\u7a3f\u3067\u306f\u3001\u305d\u306e\u767a\u898b\u30d7\u30ed\u30bb\u30b9\u3001\u8106\u5f31\u6027\u306e\u8a73\u7d30\u3068\u305d\u306e\u5f71\u97ff\u3001\u304a\u3088\u3073\u60aa\u7528\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\u958b\u793a\u30d7\u30ed\u30bb\u30b9\u3092\u8abf\u6574\u3057\u3066\u304f\u3060\u3055\u3063\u305fRed Hat\u306eBrandon Phillips\u6c0f\u306b\u611f\u8b1d\u3092\u7533\u3057\u4e0a\u3052\u307e\u3059\u3002\u672c\u65e5\u3001Kubernetes\u30c1\u30fc\u30e0\u306b\u3088\u3063\u3066\u884c\u308f\u308c\u305f\u767a\u8868\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/discuss.kubernetes.io\/t\/announce-security-release-of-kubernetes-kubectl-potential-directory-traversal-releases-1-11-9-1-12-7-1-13-5-and-1-14-0-cve-2019-1002101\/5712\" target=\"_blank\" rel=\"noopener noreferrer\">\u3053\u3061\u3089<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2>\u8106\u5f31\u6027\u306e\u767a\u898b<\/h2>\n<p>Kubernetes\u30b3\u30de\u30f3\u30c9\u3092\u8abf\u3079\u3066\u3044\u305f\u3068\u304d\u3001\u3042\u308b\u6ce8\u8a18\u304c\u76ee\u306b\u7559\u307e\u308a\u307e\u3057\u305f\u3002<\/p>\n<p><img  class=\"size-full wp-image-9937 aligncenter lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/\/2019\/10\/image1.png\" sizes=\"(max-width: 654px) 100vw, 654px\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/\/2019\/10\/image1.png 654w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/image1-300x42.png 300w\" alt=\"\" width=\"654\" height=\"92\" \/><\/p>\n<p>\u3053\u306e\u6ce8\u8a18\u306f\u3001\u30b3\u30f3\u30c6\u30ca\u3068\u30e6\u30fc\u30b6\u30fc\u30de\u30b7\u30f3\u306e\u9593\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u30b3\u30d4\u30fc\u3067\u304d\u308b<a href=\"https:\/\/kubernetes.io\/docs\/reference\/generated\/kubectl\/kubectl-commands#cp\" target=\"_blank\" rel=\"noopener noreferrer\">kubectl cp<\/a>\u30b3\u30de\u30f3\u30c9\u306b\u3064\u3044\u3066\u53d6\u308a\u4e0a\u3052\u3066\u3044\u307e\u3059\u3002\u30b3\u30f3\u30c6\u30ca\u3068\u306e\u9593\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u30b3\u30d4\u30fc\u3059\u308b\u305f\u3081\u306b\u3001Kubernetes\u306f\u30b3\u30f3\u30c6\u30ca\u5185\u306e<code>tar<\/code>\u30d0\u30a4\u30ca\u30ea\u3092\u547c\u3073\u51fa\u3057\u3066\u3001\u8981\u6c42\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u3067tar\u30a2\u30fc\u30ab\u30a4\u30d6\u3092\u4f5c\u6210\u307e\u305f\u306f\u89e3\u51cd\u3057\u307e\u3059\u3002\u3053\u308c\u306fcp\u30b3\u30de\u30f3\u30c9\u306e\u901a\u5e38\u306e\u52d5\u4f5c\u3067\u3059\u304c\u3001\u79c1\u304c\u9a5a\u3044\u305f\u306e\u306f\u30011\u5e74\u307b\u3069\u524d\u306bcp\u30b3\u30fc\u30c9\u306e\u8106\u5f31\u6027\u304c\u691c\u51fa\u3055\u308c\u305f\u5f8c\u3067\u3082\u3001\u307e\u3060\u540c\u3058\u8a2d\u8a08\u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u305f\u70b9\u3067\u3059\u3002<\/p>\n<p>\u8aad\u8005\u306e\u65b9\u3005\u306e\u4e2d\u306b\u306f\u3001\u53bb\u5e74\u306e3\u6708\u306bcp\u30b3\u30de\u30f3\u30c9\u3067\u691c\u51fa\u3055\u308c\u305f\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u306e\u8106\u5f31\u6027\u3092\u601d\u3044\u51fa\u3059\u65b9\u3082\u304a\u3089\u308c\u308b\u3067\u3057\u3087\u3046\u3002\u3053\u306e\u8106\u5f31\u6027\u306b\u306f<a href=\"https:\/\/nvd.nist.gov\/vuln\/detail\/CVE-2018-1002100\" target=\"_blank\" rel=\"noopener noreferrer\">CVE-2018-1002100<\/a>\u304c\u5272\u308a\u632f\u3089\u308c\u307e\u3057\u305f\u304c\u3001<a href=\"https:\/\/hansmi.ch\/articles\/2018-04-openshift-s2i-security\" target=\"_blank\" rel=\"noopener noreferrer\">\u540c\u3058\u8a18\u4e8b<\/a>\u3067\u767a\u8868\u3055\u308c\u305fOpenShift\u306e\u540c\u985e\u306e\u8106\u5f31\u6027\u306e\u9670\u306b\u96a0\u308c\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n<p>\u3053\u306e\u8106\u5f31\u6027\u306f\u3001\u6839\u672c\u7684\u306b\u306f\u53e4\u5178\u7684\u306a\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u3067\u3059\u3002<code class=\"prettyprint prettyprinted\"><span class=\"pun\">..\/<\/span><\/code>(\u30c9\u30c3\u30c8 \u30c9\u30c3\u30c8 \u30b9\u30e9\u30c3\u30b7\u30e5)\u3092\u4f7f\u7528\u3057\u305f\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30af\u30e9\u30a4\u30df\u30f3\u30b0\u3092\u542b\u3080\u30d1\u30b9\u304c\u7121\u5bb3\u5316\u3055\u308c\u305a\u3001\u60aa\u610f\u306e\u3042\u308b\u30b3\u30f3\u30c6\u30ca\u304c\u3001\u4efb\u610f\u306e\u30d5\u30a1\u30a4\u30eb\u304c\u30b3\u30d4\u30fc\u3055\u308c\u305f\u3068\u304d\u306b\u3001\u30e6\u30fc\u30b6\u30fc\u30de\u30b7\u30f3\u4e0a\u306e\u4efb\u610f\u306e\u30d1\u30b9\u306b\u66f8\u304d\u8fbc\u3080\u3053\u3068\u304c\u3067\u304d\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>\u79c1\u304c\u767a\u898b\u3057\u305f\u8106\u5f31\u6027\u3092\u6398\u308a\u4e0b\u3052\u3066\u8abf\u3079\u308b\u524d\u306b\u3001kubectl cp\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u30b3\u30f3\u30c6\u30ca\u304b\u3089\u30d5\u30a1\u30a4\u30eb\u3092\u30b3\u30d4\u30fc\u3059\u308b\u305f\u3081\u306b\u3001kubectl\u306f\u30b3\u30f3\u30c6\u30ca\u5185\u306b\u3042\u308b\u30bd\u30fc\u30b9\u30d5\u30a1\u30a4\u30eb\u3067tar\u3092\u4f5c\u6210\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u30de\u30b7\u30f3\u3067\u89e3\u51cd\u3057\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u30de\u30b7\u30f3\u304b\u3089\u30b3\u30f3\u30c6\u30ca\u306b\u30d5\u30a1\u30a4\u30eb\u3092\u30b3\u30d4\u30fc\u3059\u308b\u305f\u3081\u306b\u3001kubectl\u306f\u30d5\u30a1\u30a4\u30eb\u3067tar\u3092\u4f5c\u6210\u3057\u3001\u30b3\u30f3\u30c6\u30ca\u5185\u3067\u89e3\u51cd\u3057\u307e\u3059\u3002<\/p>\n<p>\u30e6\u30fc\u30b6\u30fc\u30de\u30b7\u30f3\u3067tar\u30a2\u30fc\u30ab\u30a4\u30d6\u3092\u4f5c\u6210\u304a\u3088\u3073\u89e3\u51cd\u3059\u308b\u5834\u5408\u3001kubectl\u306fcmd\/cp\/cp.go\u306etar\u89e3\u6790\u30b3\u30fc\u30c9\u3092\u5229\u7528\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u30b3\u30f3\u30c6\u30ca\u3067\u3053\u308c\u3089\u306e\u64cd\u4f5c\u3092\u884c\u3046\u5834\u5408\u3001kubectl\u306f\u30b3\u30f3\u30c6\u30ca\u5185\u3067<code>tar<\/code>\u30d0\u30a4\u30ca\u30ea\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001cp\u30b3\u30de\u30f3\u30c9\u304c\u6a5f\u80fd\u3059\u308b\u306b\u306f\u3001\u3053\u306e\u6ce8\u8a18\u306b\u66f8\u304b\u308c\u3066\u3044\u308b\u3088\u3046\u306b\u3001<code>tar<\/code>\u30d0\u30a4\u30ca\u30ea\u304c\u30b3\u30f3\u30c6\u30ca\u5185\u306b\u5b58\u5728\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30b3\u30f3\u30c6\u30ca\u5185\u306e<code>tar<\/code>\u30d0\u30a4\u30ca\u30ea\u306b\u60aa\u610f\u304c\u3042\u308b\u5834\u5408\u3001\u4efb\u610f\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3057\u3066\u3001\u4e88\u671f\u3057\u306a\u3044\u3001\u60aa\u610f\u306e\u3042\u308b\u7d50\u679c\u304c\u751f\u6210\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u4ee5\u524d\u306e\u8106\u5f31\u6027\u3068\u60aa\u7528\u3055\u308c\u308b\u65b0\u305f\u306a\u8106\u5f31\u6027\u4e21\u65b9\u306e\u5fc5\u8981\u6761\u4ef6\u3067\u3059\u3002<\/p>\n<p>cp.go\u306e\u95a2\u6570<code class=\"prettyprint prettyprinted\"><span class=\"str\"><code>copyFromPod<\/code><\/span><\/code>\u306f\u3001\u30b3\u30f3\u30c6\u30ca\u304b\u3089\u30d5\u30a1\u30a4\u30eb\u3092\u30b3\u30d4\u30fc\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u3092\u5b9f\u88c5\u3057\u307e\u3059\u3002\u30ea\u30e2\u30fc\u30c8\u5b9f\u884c(<code class=\"prettyprint prettyprinted\"><span class=\"str\"><code>&amp;exec.DefaultRemoteExecutor<\/code><\/span><\/code>)\u3092\u4f7f\u7528\u3057\u3066\u30b3\u30f3\u30c6\u30ca\u5185\u306etar\u3092\u547c\u3073\u51fa\u3057\u305f\u5f8c\u3001\u95a2\u6570<code class=\"prettyprint prettyprinted\"><span class=\"str\"><code>untarAll<\/code><\/span><\/code>\u3092\u4f7f\u7528\u3057\u3066\u30e6\u30fc\u30b6\u30fc\u30de\u30b7\u30f3\u3067tar\u30d5\u30a1\u30a4\u30eb\u3092\u89e3\u51cd\u3057\u307e\u3059\u3002\u3053\u306e\u95a2\u6570\u306f\u3001\u201c<a href=\"https:\/\/golang.org\/pkg\/archive\/tar\/\" target=\"_blank\" rel=\"noopener noreferrer\">archive\/tar<\/a>\u201d Go\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u4f7f\u7528\u3057\u3066tar\u3092\u89e3\u6790\u3057\u3001\u6700\u5f8c\u306btar\u30d5\u30a1\u30a4\u30eb\u306e\u30d8\u30c3\u30c0\u30fc\u306b\u57fa\u3065\u3044\u3066\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u5b9b\u5148\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u66f8\u304d\u8fbc\u307f\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/github.com\/kubernetes\/kubernetes\/issues\/61297\" target=\"_blank\" rel=\"noopener noreferrer\">CVE-2018-1002100\u306b\u5bfe\u3059\u308b\u5bfe\u7b56<\/a>\u4ee5\u964d\u3001tar\u89e3\u51cd\u95a2\u6570\u306f<code class=\"prettyprint prettyprinted\"><span class=\"str\"><code>cp.go:clean<\/code><\/span><\/code>\u95a2\u6570\u3092\u547c\u3073\u51fa\u3057\u3066\u3001\u30d1\u30b9\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u3092\u9664\u53bb\u3057\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001\u30b3\u30fc\u30c9\u3092\u8aad\u307f\u53d6\u3063\u305f\u5f8c\u3001\u3053\u306e\u95a2\u6570\u306ftar\u30d8\u30c3\u30c0\u30fc\u304b\u3089\u30b7\u30f3\u30dc\u30ea\u30c3\u30af\u30ea\u30f3\u30af\u3092\u4f5c\u6210\u3059\u308b\u4f5c\u696d\u3068\u3001\u30ea\u30f3\u30af\u3092\u305f\u3069\u308b\u4f5c\u696d\u306e\u4e21\u65b9\u3092\u5b9f\u884c\u3067\u304d\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002\u653b\u6483\u8005\u306f\u3001\u307b\u307c\u3059\u3079\u3066\u306e\u30d1\u30b9\u3078\u306e\u30b7\u30f3\u30dc\u30ea\u30c3\u30af\u30ea\u30f3\u30af\u3092\u542b\u3080\u30d8\u30c3\u30c0\u30fc\u3068\u3001\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u5185\u306esymlink\u3068\u540c\u3058\u540d\u524d\u3092\u6301\u3064\u30d5\u30a1\u30a4\u30eb\u3078\u306e\u30b7\u30f3\u30dc\u30ea\u30c3\u30af\u30ea\u30f3\u30af\u3092\u542b\u3080\u5f8c\u7d9a\u306e\u30d8\u30c3\u30c0\u30fc\u3092\u6301\u3064\u3001\u60aa\u610f\u306e\u3042\u308btar\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002cp untar\u95a2\u6570\u306b\u3088\u3063\u3066\u62bd\u51fa\u3055\u308c\u305f\u3089\u3001\u30b7\u30f3\u30dc\u30ea\u30c3\u30af\u30ea\u30f3\u30af\u306e\u30d1\u30b9\u306b\u76ee\u7684\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3057\u305f\u308a\u5909\u66f4\u3057\u305f\u308a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u5f71\u97ff<\/h2>\n<p>\u4ee5\u4e0b\u306e2\u3064\u306e\u30b7\u30ca\u30ea\u30aa\u3067\u306f\u3001\u3053\u306e\u8106\u5f31\u6027\u304c\u5371\u967a\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u30e6\u30fc\u30b6\u30fc\u304c\u77e5\u3089\u305a\u306b\u3001\u60aa\u8cea\u306atar\u3092\u4f7f\u7528\u3057\u3066\u60aa\u610f\u306e\u3042\u308b\u30b3\u30f3\u30c6\u30ca\u30a4\u30e1\u30fc\u30b8\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3059\u308b\u5834\u5408\u3002\u653b\u6483\u8005\u306f\u3053\u3046\u3057\u305f\u30a4\u30e1\u30fc\u30b8\u3092\u3001\u81ea\u8eab\u304c\u5236\u5fa1\u3067\u304d\u308b\u4e00\u822c\u7684\u306a\u30a4\u30e1\u30fc\u30b8\u306e\u4efb\u610f\u306e\u30ec\u30b8\u30b9\u30c8\u30ea(Docker Hub\u306a\u3069)\u306b\u633f\u5165\u3057\u305f\u308a\u3001\u30bf\u30a4\u30dd\u30b9\u30af\u30ef\u30c3\u30c6\u30a3\u30f3\u30b0\u3092\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/li>\n<li>\u653b\u6483\u8005\u304c\u4ed6\u306e\u8106\u5f31\u6027\u3092\u60aa\u7528\u3057\u3066\u5b9f\u884c\u4e2d\u306e\u30b3\u30f3\u30c6\u30ca\u3092\u4fb5\u5bb3\u3059\u308b\u5834\u5408\u3002\u653b\u6483\u8005\u304c\u30b3\u30f3\u30c6\u30ca\u3078\u306e\u6b63\u898f\u306e\u30a2\u30af\u30bb\u30b9\u6a29\u3092\u6301\u3063\u3066\u3044\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u5834\u5408\u3001\u653b\u6483\u8005\u306f\u30a4\u30e1\u30fc\u30b8\u306e\u5143\u306etar\u3092\u60aa\u610f\u306e\u3042\u308btar\u306b\u5dee\u3057\u66ff\u3048\u307e\u3059\u3002<\/li>\n<\/ol>\n<p>\u3055\u3089\u306b\u5de7\u5999\u306a\u653b\u6483\u8005\u306f\u3001\u653b\u6483\u304c\u3059\u3050\u306b\u660e\u3089\u304b\u306b\u306a\u3089\u306a\u3044\u3088\u3046\u306b\u3001\u60aa\u610f\u306e\u3042\u308btar\u306e\u51fa\u529b\u306b\u5143\u3005\u8981\u6c42\u3055\u308c\u3066\u3044\u305f\u30d5\u30a1\u30a4\u30eb\u3092\u542b\u3081\u308b\u304b\u3001symlink\u30d5\u30a1\u30a4\u30eb\u3092\u30c9\u30c3\u30c8\u30d5\u30a1\u30a4\u30eb\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3092\u96a0\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u307e\u3067\u306e\u3068\u3053\u308d\u3001\u305d\u308c\u81ea\u4f53\u3067\u5371\u967a\u306a\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u306b\u3064\u3044\u3066\u306e\u307f\u8aac\u660e\u3057\u3066\u304d\u307e\u3057\u305f\u3002\uff4bubectl\u30e6\u30fc\u30b6\u30fc\u306f\u4e00\u822c\u306b\u958b\u767a\u8005\u3001DevOps\u30b9\u30bf\u30c3\u30d5\u3001\u307e\u305f\u306f\u7ba1\u7406\u8005\u3067\u3042\u308a\u3001\u74b0\u5883\u306b\u306f\u6a5f\u5bc6\u6027\u306e\u9ad8\u3044\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3084\u5c0e\u5165\u30d5\u30a1\u30a4\u30eb\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u3053\u306e\u8106\u5f31\u6027\u3092\u6a19\u7684\u3068\u3057\u305f\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u304c\u3001\u6a5f\u5bc6\u6027\u306e\u9ad8\u3044\u60c5\u5831\u306e\u6f0f\u6d29\u304a\u3088\u3073\u5f15\u304d\u51fa\u3057\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u306a\u304c\u3089\u3001\u3053\u306e\u8106\u5f31\u6027\u3092\u5229\u7528\u3057\u3066\u30e6\u30fc\u30b6\u30fc\u30de\u30b7\u30f3\u4e0a\u3067\u30b3\u30fc\u30c9\u3092\u5b8c\u5168\u306b\u5b9f\u884c\u3059\u308b\u3053\u3068\u304c\u3001\u653b\u6483\u8005\u306b\u3068\u3063\u3066\u3069\u306e\u304f\u3089\u3044\u7c21\u5358\u306a\u3053\u3068\u306a\u306e\u304b\u304c\u7591\u554f\u70b9\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u307e\u305a\u3001kubectl\u304croot\u3068\u3057\u3066\u5b9f\u884c\u3055\u308c\u308b\u5834\u5408\u3001\u591a\u304f\u306e\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u307e\u305f\u306f\u30b7\u30b9\u30c6\u30e0\u30d5\u30a1\u30a4\u30eb\u306e1\u3064\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u3067\u3001\u30ea\u30e2\u30fc\u30c8\u30b3\u30fc\u30c9\u5b9f\u884c\u306f\u975e\u5e38\u306b\u7c21\u5358\u306b\u306a\u308a\u307e\u3059\u3002\/etc\/profile\u30d5\u30a1\u30a4\u30eb\u3084cron\u30d5\u30a1\u30a4\u30eb\u306a\u3069\u306e\u30d5\u30a1\u30a4\u30eb\u3082\u683c\u597d\u306e\u6a19\u7684\u3067\u3059\u304c\u3001\u307b\u307c\u3059\u3079\u3066\u306e\u30b9\u30bf\u30fc\u30c8\u30a2\u30c3\u30d7\u30d5\u30a1\u30a4\u30eb\u3082\u5bb9\u6613\u306b\u6a19\u7684\u3068\u306a\u308a\u3001\u5373\u6642\u304b\u3064\u6c38\u7d9a\u7684\u306b\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n<p>\u73fe\u5728\u306e\u3068\u3053\u308d\u3001kubectl\u306f\u4e00\u822c\u306b\u30e6\u30fc\u30b6\u30fc\u3068\u3057\u3066\u5b9f\u884c\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u3053\u3068\u304c\u3001\u653b\u6483\u8005\u304c\u30b3\u30fc\u30c9\u5b9f\u884c\u3092\u78ba\u5b9a\u7684\u306b\u884c\u3046\u306e\u3092\u96e3\u3057\u304f\u3057\u3066\u3044\u307e\u3059\u3002\u7d50\u5c40\u306e\u3068\u3053\u308d\u3001\u653b\u6483\u8005\u306e\u5275\u9020\u6027\u307e\u305f\u306f\u30e6\u30fc\u30b6\u30fc\u306e\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306b\u3064\u3044\u3066\u3069\u308c\u3060\u3051\u77e5\u3063\u3066\u3044\u308b\u304b\u306b\u8981\u7d04\u3055\u308c\u307e\u3059\u304c\u3001\u3053\u306e\u30d6\u30ed\u30b0\u306e\u305f\u3081\u306b\u3001\u591a\u304f\u306e\u4e8b\u4f8b\u3067\u4f7f\u7528\u3067\u304d\u308b\u7c21\u5358\u306a\u30a2\u30a4\u30c7\u30a2\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u3067\u767a\u898b\u3055\u308c\u305f\u6982\u5ff5\u5b9f\u8a3c\u306b\u304a\u3044\u3066\u306f\u3001\u30c7\u30a3\u30ec\u30af\u30c8\u30eakubectl\u306e\u5b9f\u884c\u5143\u306e<code>.bashrc<\/code>\u30d5\u30a1\u30a4\u30eb\u306b\u66f8\u304d\u8fbc\u3080\u3053\u3068\u3067\u3001\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3057\u307e\u3057\u305f\u3002\u30d1\u30b9\/proc\/self\/cwd\u306f\u3053\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u30ea\u30f3\u30af\u3057\u3066\u3044\u307e\u3059\u3002kubectl\u304c\u30e6\u30fc\u30b6\u30fc\u306e\u30db\u30fc\u30e0\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u304b\u3089\u5b9f\u884c\u3055\u308c\u308b\u5834\u5408\u3001bash\u30ed\u30fc\u30c9\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u79c1\u306e\u30da\u30a4\u30ed\u30fc\u30c9\u306b\u7f6e\u304d\u63db\u3048\u3089\u308c\u3001\u6b21\u56debash\u30b7\u30a7\u30eb\u304c\u751f\u6210\u3055\u308c\u308b\u3068\u304d\u306b\u3001\u3053\u306e\u30da\u30a4\u30ed\u30fc\u30c9\u304c\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2>\u6982\u5ff5\u5b9f\u8a3c<\/h2>\n<p><script id=\"asciicast-1iWgiWcwrV6YR0suIsUIPV3WG\" src=\"https:\/\/asciinema.org\/a\/1iWgiWcwrV6YR0suIsUIPV3WG.js\" async=\"\" data-player=\"[object HTMLDivElement]\"><\/script><\/p>\n<div id=\"asciicast-container-1iWgiWcwrV6YR0suIsUIPV3WG\" class=\"asciicast\" style=\"display: block; float: none; overflow: hidden; padding: 0px; margin: 20px 0px;\"><iframe style=\"overflow: hidden; margin: 0px; border: 0px; display: inline-block; width: 817px; float: none; visibility: visible; height: 723px;\" src=\"https:\/\/asciinema.org\/a\/1iWgiWcwrV6YR0suIsUIPV3WG\/embed?\" id=\"asciicast-iframe-1iWgiWcwrV6YR0suIsUIPV3WG\" name=\"asciicast-iframe-1iWgiWcwrV6YR0suIsUIPV3WG\" scrolling=\"no\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/div>\n<p>\u6b21\u306e\u89e3\u8aac\u753b\u50cf\u306f\u3001\u3053\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306e\u624b\u9806\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><img  class=\"size-full wp-image-9938 aligncenter lozad\"  data-src=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/\/2019\/10\/image2.png\" sizes=\"(max-width: 767px) 100vw, 767px\" srcset=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/\/2019\/10\/image2.png 767w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/image2-221x300.png 221w, https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/10\/image2-754x1024.png 754w\" alt=\"\" width=\"767\" height=\"1041\" \/><\/p>\n<h2>\u518d\u8a2d\u8a08\u306e\u63d0\u6848<\/h2>\n<p>\u3053\u306e\u8106\u5f31\u6027\u306f\u3001<code class=\"prettyprint prettyprinted\"><span class=\"str\"><code>untarAll<\/code><\/span><\/code>\u95a2\u6570\u3092\u4fee\u6b63\u3057\u3001\u30b7\u30f3\u30dc\u30ea\u30c3\u30af\u30ea\u30f3\u30af\u306e\u4ee3\u308f\u308a\u306b\u901a\u5e38\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u66f8\u304d\u8fbc\u3080\u3053\u3068\u3067\u30af\u30ed\u30fc\u30ba\u3067\u304d\u307e\u3059\u3002\u5143\u306e\u30a2\u30c9\u30d0\u30a4\u30b6\u30ea\u30fc\u3067\u306f\u3001\u3053\u306e\u95a2\u6570\u306e\u5225\u306e\u975e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3Out-of-Bounds\u30a2\u30af\u30bb\u30b9\u30d0\u30b0\u306b\u3064\u3044\u3066\u3082\u5831\u544a\u3057\u3066\u3044\u307e\u3059\u3002\u30e1\u30f3\u30c6\u30ca\u30fc\u306f\u3001\u7c21\u6613\u306aPR\u3067\u554f\u984c\u3092\u4e21\u65b9\u3068\u3082\u30af\u30ed\u30fc\u30ba\u3067\u304d\u308b\u3067\u3057\u3087\u3046\u3002\u307e\u305f\u3001CVE\u306f\u4fee\u6b63\u6e08\u3068\u30de\u30fc\u30af\u3055\u308c\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001\u79c1\u306e\u898b\u89e3\u3067\u306f\u3001kubectl cp\u306f\u3001\u3055\u3089\u306b\u8a00\u3048\u3070Kubernetes\u30b3\u30de\u30f3\u30c9\u306f\u3001tar\u3092\u547c\u3073\u51fa\u3057\u305f\u308a\u3001\u30b3\u30f3\u30c6\u30ca\u5185\u306e\u30d0\u30a4\u30ca\u30ea\u3092\u5b9f\u884c\u3057\u305f\u308a\u3059\u3079\u304d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30b3\u30f3\u30c6\u30ca\u5185\u90e8\u304b\u3089\u306e\u51fa\u529b\u304c\u3059\u3079\u3066\u3001\u5b89\u5168\u3067\u3042\u308b\u3001\u307e\u305f\u306f\u4fe1\u983c\u3067\u304d\u308b\u3068\u8003\u3048\u308b\u3079\u304d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4fb5\u5bb3\u3055\u308c\u305f\u5834\u5408\u3001\u653b\u6483\u8005\u304c\u5236\u5fa1\u3067\u304d\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3067\u3059\u3002\u8106\u5f31\u6027\u304c\u306a\u304f\u3066\u3082\u3001\u30d0\u30a4\u30ca\u30ea\u306f\u719f\u7df4\u30e6\u30fc\u30b6\u30fc\u3067\u3055\u3048\u3082\u6df7\u4e71\u3055\u305b\u308b\u3088\u3046\u306a\u3001\u8aa4\u89e3\u3092\u62db\u304d\u3084\u3059\u3044\u30c6\u30ad\u30b9\u30c8(tar\u306e\u5834\u5408\u306fstderr\u3092\u4ecb\u3057\u3066)\u3092\u30e6\u30fc\u30b6\u30fc\u306e\u30bf\u30fc\u30df\u30ca\u30eb\u306b\u51fa\u529b\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u306f\u3001\u30bf\u30fc\u30df\u30ca\u30eb\u306e\u8106\u5f31\u6027\u3092\u60aa\u7528\u3057\u3066\u3001\u3088\u308a\u591a\u304f\u306e\u3053\u3068\u3092\u884c\u304a\u3046\u3068\u3057\u307e\u3059\u3002<a href=\"#footnote1\" rel=\"noopener noreferrer\">(1)<\/a><\/p>\n<p>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3067\u306f\u306a\u304f\u4f7f\u3044\u3084\u3059\u3055\u3092\u7406\u7531\u306b\u3057\u3066\u3067\u306f\u3042\u308a\u307e\u3059\u304c\u3001kubectl cp\u306e\u8981\u4ef6\u304b\u3089tar\u3092\u9664\u5916\u3057\u3088\u3046\u3068\u3044\u3046<a href=\"https:\/\/github.com\/kubernetes\/kubernetes\/issues\/58512\" target=\"_blank\" rel=\"noopener noreferrer\">\u8ad6\u4e89<\/a>\u304c\u3059\u3067\u306b\u63d0\u8d77\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>Twistlock\uff08Prisma Cloud\uff09\u306b\u3088\u308b\u4fdd\u8b77<\/h2>\n<p>Prisma Cloud\uff08\u65e7Twistlock\uff09\u306f\u3001\u4fb5\u5bb3\u3092\u8b66\u544a\u3057\u3001\u3053\u306e\u8106\u5f31\u6027\u304c\u60aa\u7528\u3055\u308c\u308b\u306e\u3092\u963b\u6b62\u3059\u308b\u3053\u3068\u3067\u3001\u5b9f\u884c\u4e2d\u306e\u30b3\u30f3\u30c6\u30ca\u5185\u306b\u304a\u3051\u308btar\u30d0\u30a4\u30ca\u30ea\u306e\u5909\u66f4\u3092\u8b66\u544a\u3057\u305f\u308a\u3001\u9632\u3050\u3053\u3068\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001Twistlock\u3067\u306fCIS\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u3092\u63a1\u7528\u3057\u3066\u304a\u308a\u3001\u3059\u3079\u3066\u306e\u30a4\u30e1\u30fc\u30b8\u3092\u8aad\u307f\u8fbc\u307f\u5c02\u7528\u30eb\u30fc\u30c8 \u30d5\u30a1\u30a4\u30eb \u30b7\u30b9\u30c6\u30e0\u3067\u5b9f\u884c\u3055\u305b\u3066\u3001\u5b9f\u884c\u4e2d\u306e\u30b3\u30f3\u30c6\u30ca\u5185\u306etar\u3084\u30d0\u30a4\u30ca\u30ea\u304c\u4e57\u3063\u53d6\u3089\u308c\u308b\u306e\u3092\u963b\u6b62\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>Twistlock\u3092\u4f7f\u7528\u3057\u3066\u3001Trusted Images\u3092\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u30012\u5e74\u524d\u306bTwistlock 1.7\u3067\u5c0e\u5165\u3055\u308c\u305f\u6a5f\u80fd\u3067\u3001\u7d44\u7e54\u5185\u3067\u4f7f\u7528\u3067\u304d\u308b\u30ec\u30b8\u30b9\u30c8\u30ea\u3001\u30ea\u30dd\u30b8\u30c8\u30ea\u3001\u30a4\u30e1\u30fc\u30b8\u307e\u305f\u306f\u30d9\u30fc\u30b9\u30ec\u30a4\u30e4\u30fc\u306e\u30bb\u30c3\u30c8\u3092\u9078\u629e\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u6700\u5f8c\u306b\u3001\u65b0\u3057\u3044Kubernetes\u76e3\u67fb\u6a5f\u80fd\u306b\u3088\u3063\u3066\u3001cp\u30b3\u30de\u30f3\u30c9\u306e\u4f7f\u7528\u3092\u53ef\u8996\u5316\u3057\u3001\u30b3\u30f3\u30c6\u30ca\u306e\u4fb5\u5bb3\u306b\u3088\u3063\u3066\u30e6\u30fc\u30b6\u30fc\u304c\u5f71\u97ff\u3092\u53d7\u3051\u308b\u30a4\u30d9\u30f3\u30c8\u3092\u5bb9\u6613\u306b\u660e\u3089\u304b\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3059\u3079\u3066\u306ecp\u30a4\u30d9\u30f3\u30c8\u3092\u76e3\u8996\u3059\u308b\u306b\u306f\u3001\u6b21\u306e\u30eb\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true\">jpath(\"stage\") = \"ResponseComplete\" and jpath(\"objectRef.resource\") = \"pods\" and jpath(\"objectRef.subresource\") = \"exec\" and jpath(\"verb\") = \"create\" and jpath(\"requestURI\") contains \"command=tar\"<\/pre>\n<p>\u3053\u306e\u30eb\u30fc\u30eb\u3092\u63d0\u4f9b\u3057\u3066\u304f\u3060\u3055\u3063\u305fMisha\u3068Omri\u306b\u611f\u8b1d\u3057\u307e\u3059\u3002<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u3053\u306e\u8106\u5f31\u6027\u306f\u3001Kubernetes\u306e\u30e6\u30fc\u30b6\u30fc\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3067\u3042\u308bkubectl (\u304a\u3088\u3073Kubernetes\u306ekubectl\u306b\u76f8\u5f53\u3059\u308bOpenShift\u306eoc)\u306b\u306e\u307f\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002v1.9.0-alpha.2\u304b\u30891.14.0\u306e\u3059\u3079\u3066\u306ekubectl\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u306f\u8106\u5f31\u6027\u304c\u3042\u308a\u307e\u3059(1.11.9\u30011.12.7\u30011.13.5\u306b\u306f\u4fee\u6b63\u30d7\u30ed\u30b0\u30e9\u30e0\u3082\u3042\u308a\u307e\u3059)\u3002<\/p>\n<p><a href=\"https:\/\/twitter.com\/unit42_jp\" target=\"_blank\" rel=\"noopener noreferrer\">Twitter\u3092\u30d5\u30a9\u30ed\u30fc<\/a>\u3059\u308b\u3068\u3001\u5f53\u793e\u306e\u30a2\u30c9\u30d0\u30a4\u30b6\u30ea\u3092\u3054\u78ba\u8a8d\u3044\u305f\u3060\u3051\u307e\u3059\u3002\u307e\u305f\u3001\u6295\u7a3f\u3082\u3044\u3061\u65e9\u304f\u3054\u89a7\u3044\u305f\u3060\u3051\u307e\u3059\u3002<\/p>\n<hr \/>\n<ol>\n<li><a name=\"footnote1\"><\/a> \u30a8\u30b9\u30b1\u30fc\u30d7 \u30b7\u30fc\u30b1\u30f3\u30b9 \u30bf\u30fc\u30df\u30ca\u30eb\u306e\u8106\u5f31\u6027\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u306f\u3001AtlSecCon\u3067\u306e\u8b1b\u6f14\u306e<a href=\"https:\/\/www.twistlock.com\/wp-content\/uploads\/2018\/10\/The-Story-of-Escape-Sequence-Vulnerabilities-2.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">\u30b9\u30e9\u30a4\u30c9<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8981 2019\u5e743\u67084\u65e5\u3001\u79c1\u306fKubernetes\u304a\u3088\u3073OpenShift\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c1\u30fc\u30e0\u306bkubectl\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8106\u5f31\u6027\u3092\u5831\u544a\u3057\u307e\u3057\u305f\u3002\u305d\u306e\u5f8c\u3001\u3053\u306e\u8106\u5f31\u6027\u306b\u306fCVE-2019-1002101\u304c\u5272\u308a\u632f\u3089\u308c\u307e\u3057\u305f\u3002<\/p>\n","protected":false},"author":323,"featured_media":100545,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[4469,4436,4428,4470],"tags":[6744,4789],"product_categories":[],"coauthors":[1485],"class_list":["post-108869","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vulnerabilities","category-cloud-cybersecurity-research-ja","category-threat-research-ja","category-vulnerabilities-ja","tag-cve-2019-1002101","tag-kubernetes-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>Kubernetes\u30b3\u30d4\u30fc\u3067\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u306e\u8106\u5f31\u6027\u306e\u958b\u793a \u2013 CVE-2019-1002101<\/title>\n<meta name=\"description\" content=\"2019\u5e743\u67084\u65e5\u306b\u5f0a\u793e\u304b\u3089\u5831\u544a\u3055\u308c\u305fKubernetes \u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u30c4\u30fc\u30eb kubectl \u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8106\u5f31\u6027 (CVE-2019-1002101) \u306b\u3064\u3044\u3066\u3001\u767a\u898b\u30d7\u30ed\u30bb\u30b9\u3001\u8106\u5f31\u6027\u306e\u8a73\u7d30\u3001\u305d\u306e\u5f71\u97ff\u3001\u60aa\u7528\u65b9\u6cd5\u3092\u8aac\u660e\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\/disclosing-directory-traversal-vulnerability-kubernetes-copy-cve-2019-1002101\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kubernetes\u30b3\u30d4\u30fc\u3067\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u306e\u8106\u5f31\u6027\u306e\u958b\u793a \u2013 CVE-2019-1002101\" \/>\n<meta property=\"og:description\" content=\"2019\u5e743\u67084\u65e5\u306b\u5f0a\u793e\u304b\u3089\u5831\u544a\u3055\u308c\u305fKubernetes \u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u30c4\u30fc\u30eb kubectl \u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8106\u5f31\u6027 (CVE-2019-1002101) \u306b\u3064\u3044\u3066\u3001\u767a\u898b\u30d7\u30ed\u30bb\u30b9\u3001\u8106\u5f31\u6027\u306e\u8a73\u7d30\u3001\u305d\u306e\u5f71\u97ff\u3001\u60aa\u7528\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u307e\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/unit42.paloaltonetworks.com\/ja\/disclosing-directory-traversal-vulnerability-kubernetes-copy-cve-2019-1002101\/\" \/>\n<meta property=\"og:site_name\" content=\"Unit 42\" \/>\n<meta property=\"article:published_time\" content=\"2019-03-28T13:00:03+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-09-25T01:52:06+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/unit42.paloaltonetworks.com\/wp-content\/uploads\/2019\/03\/K8s-blog-item.png\" \/>\n\t<meta property=\"og:image:width\" content=\"900\" \/>\n\t<meta property=\"og:image:height\" content=\"362\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Ariel Zelivansky\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Kubernetes\u30b3\u30d4\u30fc\u3067\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u306e\u8106\u5f31\u6027\u306e\u958b\u793a \u2013 CVE-2019-1002101","description":"2019\u5e743\u67084\u65e5\u306b\u5f0a\u793e\u304b\u3089\u5831\u544a\u3055\u308c\u305fKubernetes \u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u30c4\u30fc\u30eb kubectl \u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8106\u5f31\u6027 (CVE-2019-1002101) \u306b\u3064\u3044\u3066\u3001\u767a\u898b\u30d7\u30ed\u30bb\u30b9\u3001\u8106\u5f31\u6027\u306e\u8a73\u7d30\u3001\u305d\u306e\u5f71\u97ff\u3001\u60aa\u7528\u65b9\u6cd5\u3092\u8aac\u660e\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\/disclosing-directory-traversal-vulnerability-kubernetes-copy-cve-2019-1002101\/","og_locale":"ja_JP","og_type":"article","og_title":"Kubernetes\u30b3\u30d4\u30fc\u3067\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u306e\u8106\u5f31\u6027\u306e\u958b\u793a \u2013 CVE-2019-1002101","og_description":"2019\u5e743\u67084\u65e5\u306b\u5f0a\u793e\u304b\u3089\u5831\u544a\u3055\u308c\u305fKubernetes \u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u30c4\u30fc\u30eb kubectl \u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8106\u5f31\u6027 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