{"id":7259,"date":"2019-04-01T11:12:22","date_gmt":"2019-04-01T03:12:22","guid":{"rendered":"https:\/\/aqzt.com\/7259.html"},"modified":"2019-04-01T11:12:22","modified_gmt":"2019-04-01T03:12:22","slug":"k8s-kubectl-%e5%a4%8d%e5%88%b6%e5%91%bd%e4%bb%a4%e6%9b%9d%e7%9b%ae%e5%bd%95%e9%81%8d%e5%8e%86%e6%bc%8f%e6%b4%9e","status":"publish","type":"post","link":"https:\/\/aqzt.com\/7259.html","title":{"rendered":"K8s kubectl \u590d\u5236\u547d\u4ee4\u66dd\u76ee\u5f55\u904d\u5386\u6f0f\u6d1e"},"content":{"rendered":"<p><a href=\"https:\/\/www.oschina.net\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u6587\u7ae0\u8f6c\u8f7d\u5f00\u6e90\u4e2d\u56fd<\/a><\/p>\n<p>Twistlock \u7684\u5b89\u5168\u7814\u7a76\u4eba\u5458&nbsp;Ariel Zelivansky \u62ab\u9732\u4e86 Kubernetes kubectl \u590d\u5236\u547d\u4ee4\u7684\u4e00\u4e2a\u76ee\u5f55\u904d\u5386\u6f0f\u6d1e\u3002<\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/aqzt.com\/wp-content\/uploads\/img\/35043bdbc295ec40822f808350599fecd8f.jpg\" 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\u89e3\u6790\uff0c\u6700\u540e\u5c06\u6587\u4ef6\u5199\u5165\u76ee\u6807\u76ee\u5f55\u3002<\/p>\n<p>\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\uff0c\u5982\u679c\u5bb9\u5668\u4e0a\u7684`tar`\u4e8c\u8fdb\u5236\u6587\u4ef6\u662f\u6076\u610f\u7684\uff0c\u90a3\u4e48\u5b83\u53ef\u4ee5\u8fd0\u884c\u4efb\u610f\u4ee3\u7801\u5e76\u8f93\u51fa\u6076\u610f\u7ed3\u679c\uff0c\u8fd9\u5c06\u6700\u7ec8\u5bfc\u81f4\u5178\u578b\u7684\u76ee\u5f55\u904d\u5386\u653b\u51fb\uff0c\u5141\u8bb8\u6076\u610f\u5bb9\u5668\u5728\u590d\u5236\u65f6\u5c06\u4efb\u4f55\u6587\u4ef6\u5199\u5165\u7528\u6237\u8ba1\u7b97\u673a\u4e0a\u7684\u4efb\u4f55\u8def\u5f84\u3002<\/p>\n<p>\u867d\u7136\u6b64\u524d\u5df2\u7ecf\u5f15\u5165\u4e86`cp.go:clean`\u51fd\u6570\u6765\u907f\u514d\u8fd9\u4e2a\u76ee\u5f55\u904d\u5386\uff0c\u4f46\u662f Ariel \u53d1\u73b0\u5176\u5b9e\u53ef\u4ee5\u521b\u5efa\u548c\u8ddf\u8e2a\u6765\u81ea tar \u5934\u7684\u7b26\u53f7\u94fe\u63a5\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u5236\u4f5c\u4e00\u4e2a\u6076\u610f tar\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u4e2a\u5e26\u6709\u51e0\u4e4e\u4efb\u4f55\u8def\u5f84\u7684\u7b26\u53f7\u94fe\u63a5\u7684\u5934\uff0c\u4ee5\u53ca\u4e00\u4e2a\u4e0e\u7b26\u53f7\u94fe\u63a5\u540c\u540d\u7684\u76ee\u5f55\u5185\u6587\u4ef6\u7684\u540e\u7eed\u5934\u3002\u5f53\u901a\u8fc7 cp untar \u51fd\u6570\u63d0\u53d6\u65f6\uff0c\u94fe\u63a5\u5c06\u5bfc\u81f4\u5728\u7b26\u53f7\u94fe\u63a5\u7684\u8def\u5f84\u4e2d\u521b\u5efa\u6216\u4fee\u6539\u6240\u9700\u6587\u4ef6\u3002<\/p>\n<p>\u653b\u51fb\u8005\u53ef\u80fd\u4f1a\u91c7\u7528\u4ee5\u4e0b\u65b9\u5f0f\u5229\u7528\u8be5\u6f0f\u6d1e\uff1a<\/p>\n<ul>\n<li>\u7528\u6237\u5728\u4e0d\u77e5\u60c5\u7684\u60c5\u51b5\u4e0b\u4e0b\u8f7d\u5e26\u6709\u9519\u8bef tar \u7684\u6076\u610f\u5bb9\u5668\u955c\u50cf\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u5c06\u8fd9\u6837\u7684\u955c\u50cf\u63a8\u9001\u5230\u4efb\u4f55\u6ce8\u518c\u8868\uff08\u4f8b\u5982 Docker Hub\uff09\uff0c\u4ee5\u83b7\u5f97\u4ed6\u63a7\u5236\u6216\u4f9d\u8d56\u4e8e\u57df\u540d\u4eff\u5192\u7684\u6d41\u884c\u955c\u50cf\u3002<\/li>\n<li>\u653b\u51fb\u8005\u5229\u7528\u53e6\u4e00\u4e2a\u6f0f\u6d1e\u653b\u51fb\u6b63\u5728\u8fd0\u884c\u7684\u5bb9\u5668\uff0c\u6216\u8005\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4ed6\u53ef\u80fd\u62e5\u6709\u5bf9\u5bb9\u5668\u7684\u5408\u6cd5\u8bbf\u95ee\u6743\u9650\u3002\u7136\u540e\u653b\u51fb\u8005\u690d\u5165\u6076\u610f tar \u66ff\u6362\u955c\u50cf\u4e2d\u7684\u539f\u59cb tar\u3002<\/li>\n<\/ul>\n<p>\u5728 Ariel \u5411 Kubernetes \u548c OpenShift \u5b89\u5168\u56e2\u961f\u62a5\u544a\u540e\uff0c\u8be5\u6f0f\u6d1e\u5df2\u7ecf\u5b9e\u5b98\u65b9\u786e\u8ba4\uff0c\u5e76\u4e14\u6536\u5f55\u4e3a CVE-2019-1002101\u3002<\/p>\n<p>\u8be6\u7ec6\u62ab\u9732\u7ec6\u8282\u67e5\u770b\uff1ahttps:\/\/www.twistlock.com\/labs-blog\/disclosing-directory-traversal-vulnerability-kubernetes-copy-cve-2019-1002101<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u8f6c\u8f7d\u5f00\u6e90\u4e2d\u56fd Twistlock \u7684\u5b89\u5168\u7814\u7a76\u4eba\u5458&nbsp;Ariel Zelivansky \u62ab\u9732\u4e86 Kubernetes kubectl \u590d\u5236\u547d\u4ee4\u7684\u4e00\u4e2a\u76ee\u5f55\u904d\u5386\u6f0f\u6d1e\u3002 \u51fa\u73b0\u6f0f\u6d1e\u7684\u662f\u547d\u4ee4&nbsp;kubectl cp\uff0c\u8be5\u547d\u4ee4\u5141\u8bb8\u5728\u5bb9\u5668\u548c\u7528\u6237\u8ba1\u7b97\u673a\u4e4b\u95f4\u590d\u5236\u6587\u4ef6\u3002\u8981\u4ece\u5bb9\u5668\u4e2d\u590d\u5236\u6587\u4ef6\uff0cKubernetes \u8c03\u7528\u5bb9\u5668\u5185\u7684`tar`\u4e8c\u8fdb\u5236\u6587\u4ef6\uff0c\u4ee5\u521b\u5efa\u6216\u89e3\u538b tar \u5305\u3002 \u5bf9 tar \u7684\u64cd\u4f5c\u4f9d\u8d56\u4e8e CMD\/CP\/cp.go\uff0c\u5176\u4e2d\u7684\u51fd\u6570`copyFromPod`\u5b9e\u73b0\u4e86\u4ece\u5bb9\u5668\u4e2d\u590d\u5236\u6587\u4ef6\u7684\u8fc7\u7a0b\uff0c\u5b83\u901a\u8fc7\u8fdc\u7a0b exec\uff08`\uff06exe<\/p>\n","protected":false},"author":1,"featured_media":6522,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"categories":[27],"tags":[292,229,23,144,9,13,11],"collection":[],"_links":{"self":[{"href":"https:\/\/aqzt.com\/wp-json\/wp\/v2\/posts\/7259"}],"collection":[{"href":"https:\/\/aqzt.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aqzt.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aqzt.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aqzt.com\/wp-json\/wp\/v2\/comments?post=7259"}],"version-history":[{"count":0,"href":"https:\/\/aqzt.com\/wp-json\/wp\/v2\/posts\/7259\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aqzt.com\/wp-json\/wp\/v2\/media\/6522"}],"wp:attachment":[{"href":"https:\/\/aqzt.com\/wp-json\/wp\/v2\/media?parent=7259"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aqzt.com\/wp-json\/wp\/v2\/categories?post=7259"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aqzt.com\/wp-json\/wp\/v2\/tags?post=7259"},{"taxonomy":"collection","embeddable":true,"href":"https:\/\/aqzt.com\/wp-json\/wp\/v2\/collection?post=7259"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}