{"id":123781,"date":"2018-10-21T08:54:39","date_gmt":"2018-10-21T00:54:39","guid":{"rendered":"https:\/\/lrxjmw.cn\/?p=123781"},"modified":"2018-10-10T10:57:36","modified_gmt":"2018-10-10T02:57:36","slug":"linux-kernel-poc","status":"publish","type":"post","link":"https:\/\/lrxjmw.cn\/linux-kernel-poc.html","title":{"rendered":"\u8c37\u6b4c\u7814\u7a76\u5458\u62ab\u9732 Linux \u5185\u6838\u65b0\u6f0f\u6d1e\u8be6\u60c5\u53ca PoC"},"content":{"rendered":"

\u8c37\u6b4c Project Zero \u56e2\u961f\u7684\u4e00\u540d\u7f51\u7edc\u5b89\u5168\u7814\u7a76\u5458\u53d1\u5e03\u4e86\u5b58\u5728\u4e8e Linux \u5185\u6838\uff08\u7248\u672c 3.16 \u81f3 4.18.8\uff09\u4e2d\u7684\u4e00\u4e2a\u9ad8\u5371\u6f0f\u6d1e\u8be6\u60c5\u4ee5\u53caPoC \u5229\u7528\u4ee3\u7801\u3002<\/p>\n

\u767d\u5e3d\u9ed1\u5ba2 Jann Horn \u53d1\u73b0\u7684\u8fd9\u4e2a Linux \u5185\u6838\u6f0f\u6d1e (CVE-2018-17182) \u662f\u5b58\u5728\u4e8e Linux \u5185\u5b58\u7ba1\u7406\u5b50\u7cfb\u7edf\u4e2d\u7684\u7f13\u5b58\u5931\u6548\u95ee\u9898\uff0c\u53ef\u5bfc\u81f4\u4f7f\u7528\u540e\u91ca\u653e\u6f0f\u6d1e\u95ee\u9898\u3002\u8be5\u6f0f\u6d1e\u5982\u906d\u5229\u7528\uff0c\u53ef\u5bfc\u81f4\u653b\u51fb\u8005\u83b7\u53d6\u76ee\u6807\u7cfb\u7edf\u7684\u6839\u6743\u9650\u3002<\/p>\n

\u8fd9\u4e9b\u4f7f\u7528\u540e\u91ca\u653e\u6f0f\u6d1e\u662f\u5185\u5b58\u635f\u574f\u7c7b bug\uff0c\u53ef\u88ab\u65e0\u6743\u9650\u7528\u6237\u7528\u4e8e\u635f\u574f\u6216\u4fee\u6539\u5185\u5b58\u6570\u636e\uff0c\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08\u7cfb\u7edf\u5d29\u6e83\uff09\u6216\u6743\u9650\u63d0\u5347\u95ee\u9898\uff0c\u4ece\u800c\u83b7\u5f97\u7cfb\u7edf\u7684\u7ba1\u7406\u6743\u9650\u3002<\/p>\n

Linux \u5185\u6838\u5229\u7528\u83b7\u53d6\u6839\u8bbf\u95ee\u6743\u9650\u9700\u4e00\u5c0f\u65f6<\/strong><\/div>\n

\u4e0d\u8fc7\uff0cHorn \u8868\u793a\uff0c\u4ed6\u516c\u5f00\u53d1\u5e03\u7684 PoC Linux \u5185\u6838\u5229\u7528\u4ee3\u7801\u201c\u82b1\u8d39\u5927\u69821\u5c0f\u65f6\u7684\u65f6\u95f4\u5728 root shell \u5f39\u51fa\u524d\u8fd0\u884c\u3002\u201d\u4ed6\u57289\u670812\u65e5\u8d1f\u8d23\u4efb\u5730\u5c06\u95ee\u9898\u544a\u77e5 Linux \u5185\u6838\u7ef4\u62a4\u4eba\u5458\uff0c\u8be5\u56e2\u961f\u5728\u4e24\u5929\u5185\u5c31\u5df2\u4fee\u590d\u8be5\u95ee\u9898\u3002<\/p>\n

\u8be5\u6f0f\u6d1e\u662f\u57289\u670818\u65e5\u7684oss-security \u90ae\u4ef6\u5217\u8868\u4e2d\u88ab\u62ab\u9732\u7684\uff0c\u6b21\u65e5\u5c31\u5728\u4e0a\u6e38\u652f\u6301\u7684\u7a33\u5b9a\u7684\u5185\u6838\u7248\u672c 4.18.9\u30014.14.71\u30014.9.128 \u548c 4.4.157 \u4e2d\u4e88\u4ee5\u4fee\u590d\u3002\u7248\u672c3.16.58 \u4e5f\u4fee\u590d\u4e86\u8be5\u95ee\u9898\u3002<\/p>\n

Debian \u548c Ubuntu Linux \u7528\u6237\u53d7\u5f71\u54cd\u65f6\u95f4\u8d85\u8fc7\u4e00\u5468<\/strong><\/div>\n

Horn \u8868\u793a\uff0c\u201c\u7136\u800c\uff0c\u5728\u4e0a\u6e38\u5185\u6838\u4e2d\u4fee\u590d\u95ee\u9898\u5e76\u4e0d\u610f\u5473\u7740\u7528\u6237\u7cfb\u7edf\u5df2\u88ab\u771f\u6b63\u4fee\u590d\u3002\u201d\u4ed6\u5931\u671b\u5730\u53d1\u73b0\uff0c\u67d0\u4e9b\u4e3b\u8981\u7684 Linux \u53d1\u884c\u7248\u672c\uff0c\u5305\u62ec Debian \u548cUbuntu \u5728\u5185\u5728\u6f0f\u6d1e\u88ab\u516c\u5f00\u4e00\u5468\u4e4b\u540e\u4ecd\u672a\u53d1\u5e03\u5185\u6838\u66f4\u65b0\uff0c\u5bfc\u81f4\u5176\u7528\u6237\u6613\u53d7\u653b\u51fb\u3002\u622a\u6b62\u672c\u5468\u4e09\uff0cDebian \u7a33\u5b9a\u7248\u4ee5\u53ca Ubuntu \u7248\u672c16.04 \u548c18.04 \u5c1a\u672a\u4fee\u590d\u8be5\u6f0f\u6d1e\u3002<\/p>\n

\u7136\u800c\uff0cFedora \u9879\u76ee\u5df2\u7ecf\u57289\u670822\u65e5\u5411\u7528\u6237\u63a8\u51fa\u5b89\u5168\u8865\u4e01\u3002Horn \u8868\u793a\uff0c\u201cDeiban \u7a33\u5b9a\u7248\u672c\u7684\u5185\u6838\u57fa\u4e8e 4.9\uff0c\u4f46\u622a\u6b62\u52302018\u5e749\u670826\u65e5\uff0c\u8be5\u5185\u6838\u7684\u6700\u8fd1\u66f4\u65b0\u65f6\u95f4\u662f2018\u5e748\u670821\u65e5\u3002\u540c\u6837\uff0cUbuntu 16.04\u7684\u5185\u6838\u7248\u672c\u7684\u6700\u8fd1\u66f4\u65b0\u65f6\u95f4\u662f2018\u5e748\u670827\u65e5\u3002\u201d\u5b89\u5353\u6bcf\u4e2a\u6708\u4ec5\u66f4\u65b0\u4e00\u6b21\u5b89\u5168\u66f4\u65b0\u3002\u56e0\u6b64\u5373\u4f7f\u4e0a\u6e38\u7a33\u5b9a\u5185\u6838\u7248\u672c\u7684\u4e25\u91cd\u5b89\u5168\u6f0f\u6d1e\u8865\u4e01\u5df2\u5230\u4f4d\uff0c\u4f46\u79bb\u4fee\u590d\u65b9\u6848\u843d\u5b9e\u5230\u7528\u6237\u7684\u65f6\u95f4\u4ecd\u7136\u8fd8\u6709\u6570\u5468\uff0c\u5c24\u5176\u662f\u5f53\u5b89\u5168\u5f71\u54cd\u5e76\u672a\u516c\u5f00\u65f6\u66f4\u662f\u5982\u6b64\u3002<\/p>\n

Ubuntu \u53d1\u884c\u7248\u672c\u7684\u7ef4\u62a4\u4eba\u5458\u8868\u793a\u516c\u53f8\u5f88\u53ef\u80fd\u57282018\u5e7410\u67081\u65e5\u5de6\u53f3\u63a8\u51fa\u8865\u4e01\u3002Horn \u8868\u793a\uff0c\u8865\u4e01\u90e8\u7f72\u5728\u4e0a\u6e38\u5185\u6838\u4e4b\u540e\uff0c\u6f0f\u6d1e\u548c\u8865\u4e01\u4fe1\u606f\u90fd\u4f1a\u88ab\u516c\u5f00\uff0c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u53ef\u80fd\u5bfc\u81f4\u6076\u610f\u4eba\u5458\u9488\u5bf9\u76ee\u6807\u7528\u6237\u5f00\u53d1\u51fa Linux \u5185\u6838\u5229\u7528\u4ee3\u7801\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u8c37\u6b4c Project Zero \u56e2\u961f\u7684\u4e00\u540d\u7f51\u7edc\u5b89\u5168\u7814\u7a76\u5458\u53d1\u5e03\u4e86\u5b58\u5728\u4e8e Linux \u5185\u6838\uff08\u7248\u672c 3.16 \u81f3 4 […]<\/p>\n","protected":false},"author":1903,"featured_media":123782,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-123781","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/123781","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/users\/1903"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=123781"}],"version-history":[{"count":4,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/123781\/revisions"}],"predecessor-version":[{"id":123840,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/123781\/revisions\/123840"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/123782"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=123781"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=123781"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=123781"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}