{"id":38685,"date":"2016-12-14T09:00:37","date_gmt":"2016-12-14T01:00:37","guid":{"rendered":"https:\/\/blog.trendmicro.com.tw\/?p=38685"},"modified":"2016-12-12T16:20:36","modified_gmt":"2016-12-12T08:20:36","slug":"%e6%a6%82%e5%bf%b5%e8%ad%89%e6%98%8e%e6%87%89%e7%94%a8%e7%a8%8b%e5%bc%8f%e5%8d%b3%e4%be%bf%e6%89%8b%e6%a9%9f%e8%a8%ad%e5%ae%9a%e6%88%90%e4%b8%8d%e6%8e%a5%e5%8f%97%e4%be%86%e8%87%aagoogle-play","status":"publish","type":"post","link":"https:\/\/blog.trendmicro.com.tw\/?p=38685","title":{"rendered":"\u300a\u6982\u5ff5\u8b49\u660e\u61c9\u7528\u7a0b\u5f0f\u300b\u5373\u4fbf\u624b\u6a5f\u8a2d\u5b9a\u6210\u4e0d\u63a5\u53d7\u4f86\u81eaGoogle Play\u4ee5\u5916\u7684\u61c9\u7528\u7a0b\u5f0f,\u7adf\u4e5f\u53ef\u4ee5\u5077\u5077\u5b89\u88dd\u61c9\u7528\u7a0b\u5f0f!"},"content":{"rendered":"<h3><strong>\u65b0\u7684 Dirty COW\u653b\u64ca\u65b9\u5f0f\u00a0\u53ef\u8b93\u60e1\u610f\u7a0b\u5f0f\u78bc\u76f4\u63a5\u5beb\u5165\u7a0b\u5e8f<\/strong><\/h3>\n<p><a href=\"https:\/\/dirtycow.ninja\/\">Dirty COW<\/a>\uff08\u7de8\u865f<a href=\"https:\/\/cve.mitre.org\/cgi-bin\/cvename.cgi?name=CVE-2016-5195\">CVE-2016-5195<\/a>\uff09\u662f\u57282016\u5e7410\u6708<a href=\"https:\/\/arstechnica.com\/security\/2016\/10\/most-serious-linux-privilege-escalation-bug-ever-is-under-active-exploit\/\">\u9996\u6b21\u88ab\u516c\u958b\u62ab\u9732<\/a>\u7684Linux\u6f0f\u6d1e\u3002\u9019\u662f\u500b\u56b4\u91cd\u7684\u63d0\u6b0a\u6f0f\u6d1e\uff0c\u53ef\u4ee5\u8b93\u653b\u64ca\u8005\u5728\u76ee\u6a19\u7cfb\u7d71\u4e0a\u53d6\u5f97root\u6b0a\u9650\u3002\u5b83\u88abLinus Torvalds\u63cf\u8ff0\u70ba\u300c<a href=\"https:\/\/lkml.org\/lkml\/2016\/10\/19\/860\">\u53e4\u8001\u7684\u6f0f\u6d1e<\/a>\u300d\uff0c\u5728\u62ab\u9732\u5f8c\u5c31\u8fc5\u901f\u5730\u88ab\u4fee\u88dc\u3002\u591a\u6578Linux\u767c\u884c\u7248\u672c\u90fd\u5df2\u7d93\u76e1\u5feb\u5730\u5c07\u4fee\u88dc\u7a0b\u5f0f\u6d3e\u9001\u7d66\u4f7f\u7528\u8005\u3002<\/p>\n<p>Android\u4e5f\u540c\u6a23\u53d7\u5230Dirty COW\u6f0f\u6d1e\u5f71\u97ff\uff0c\u96d6\u7136SELinux\u5b89\u5168\u7b56\u7565\u5927\u5927\u5730\u9650\u5236\u4f4f\u53ef\u653b\u64ca\u7bc4\u570d\u3002<a href=\"https:\/\/www.trendmicro.com.tw\/edm\/Tracking.asp?id=2651&amp;name=20110916\">\u8da8\u52e2\u79d1\u6280<\/a>\u767c\u73fe\u4e86\u4e00\u7a2e\u8ddf\u73fe\u6709\u653b\u64ca\u4e0d\u540c\u7684\u65b0\u65b9\u6cd5\u4f86\u5229\u7528Dirty COW\u6f0f\u6d1e\u3002\u9019\u500b\u65b9\u6cd5\u53ef\u4ee5\u8b93\u60e1\u610f\u7a0b\u5f0f\u78bc\u76f4\u63a5\u5beb\u5165\u7a0b\u5e8f\uff0c\u8b93\u653b\u64ca\u8005\u80fd\u5920\u5c0d\u53d7\u5f71\u97ff\u8a2d\u5099\u53d6\u5f97\u5f88\u5927\u7684\u63a7\u5236\u3002\u76ee\u524d\u6240\u6709\u7684Android\u7248\u672c\u90fd\u53d7\u5230\u6b64\u554f\u984c\u5f71\u97ff\u3002<\/p>\n<p><a href=\"https:\/\/blog.trendmicro.com.tw\/?attachment_id=8213\" rel=\"attachment wp-att-8213\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-8213\" src=\"https:\/\/blog.trendmicro.com.tw\/wp-content\/uploads\/2014\/05\/android.png\" alt=\"\u4e0d\u7d66\u9322\u5c31\u8b93\u624b\u6a5f\u8b8a\u78da\u584a!\u52d2\u7d22\u96c6\u5718\u5a01\u8105\u700f\u89bd\u8272\u60c5\u7db2\u7ad9Android\u624b\u6a5f\u7528\u6236\" width=\"771\" height=\"871\" srcset=\"https:\/\/blog.trendmicro.com.tw\/wp-content\/uploads\/2014\/05\/android.png 771w, https:\/\/blog.trendmicro.com.tw\/wp-content\/uploads\/2014\/05\/android-266x300.png 266w, https:\/\/blog.trendmicro.com.tw\/wp-content\/uploads\/2014\/05\/android-768x868.png 768w, https:\/\/blog.trendmicro.com.tw\/wp-content\/uploads\/2014\/05\/android-600x678.png 600w\" sizes=\"(max-width: 771px) 100vw, 771px\" \/><\/a><\/p>\n<p><strong><em>\u6982\u5ff5\u8b49\u660e\u61c9\u7528\u7a0b\u5f0f:\u5373\u4fbf\u624b\u6a5f\u8a2d\u5b9a\u6210\u4e0d\u63a5\u53d7\u4f86\u81eaGoogle Play\u4ee5\u5916\u7684\u61c9\u7528\u7a0b\u5f0f,\u4e5f\u53ef\u4ee5\u5077\u5077\u5b89\u88dd\u61c9\u7528\u7a0b\u5f0f<\/em><\/strong><\/p>\n<p>\u4e0b\u9762\u7684\u5f71\u7247\u986f\u793a\u4e00\u500b\u5df2\u7d93\u66f4\u65b0\u6700\u65b0\u4fee\u88dc\u7a0b\u5f0f\u7684Android\u624b\u6a5f\u5b89\u88dd\u4e86\u6211\u5011\u6240\u8a2d\u8a08\u7684\u6982\u5ff5\u8b49\u660e\u61c9\u7528\u7a0b\u5f0f\u4e14\u7121\u9808\u8981\u6c42\u6388\u4e88\u4efb\u4f55\u6b0a\u9650\u3002\u4e00\u65e6\u57f7\u884c\uff0c\u5c31\u53ef\u4ee5\u5229\u7528Dirty 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allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<p>\u70ba\u4ec0\u9ebc\u6703\u9019\u6a23\uff1f\u7576\u57f7\u884c\u4e00\u500bELF\u6a94\u6848\u6642\uff0cLinux\u6838\u5fc3\u6703\u5c07\u53ef\u57f7\u884c\u6a94\u6620\u5c04\u5230\u8a18\u61b6\u9ad4\u3002\u7576\u4f60\u518d\u6b21\u6253\u958b\u76f8\u540c\u7684ELF\u53ef\u57f7\u884c\u6a94\u6642\u6703\u91cd\u8907\u4f7f\u7528\u9019\u4efd\u6620\u5c04\u3002\u7576\u5229\u7528Dirty COW\u6f0f\u6d1e\u4f86\u4fee\u6539\u57f7\u884c\u4e2d\u7684ELF\u53ef\u57f7\u884c\u6a94\u6642\uff0c\u57f7\u884c\u4e2d\u7a0b\u5e8f\u7684\u6620\u50cf\u4e5f\u6703\u6539\u8b8a\u3002\u8b93\u6211\u5011\u60f3\u60f3\u9019\u4ee3\u8868\u4ec0\u9ebc\uff1aDirty COW\u53ef\u4ee5<em>\u4fee\u6539\u4efb\u4f55\u53ef\u8b80\u7684\u57f7\u884c\u4e2d\u7a0b\u5e8f<\/em>\u3002\u5982\u679c\u7a0b\u5e8f\u4e0d\u53ef\u8b80\uff0c\u5247\u7528<em>cat \/proc\/{pid}\/maps<\/em>\u4f86\u627e\u51fa\u662f\u5426\u6709\u4efb\u4f55\u8f09\u5165\u4e2d\u7684ELF\u6a21\u7d44\u53ef\u8b80\u3002<\/p>\n<p>\u5728Android\u4e0a\u4e5f\u53ef\u4ee5\u61c9\u7528\u76f8\u540c\u7684\u6b65\u9a5f\u3002Android Runtime\uff08ART\uff09\u7a0b\u5e8f\u53ef\u4ee5\u7528\u76f8\u540c\u7684\u65b9\u5f0f\u52d5\u614b\u4fee\u6539\u3002\u9019\u8b93\u653b\u64ca\u8005\u53ef\u4ee5\u5728Android\u8a2d\u5099\u4e0a\u57f7\u884c\u61c9\u7528\u7a0b\u5f0f\u4f86\u4fee\u6539\u4efb\u4f55\u5176\u4ed6\u53ef\u8b80\u7a0b\u5e8f\u3002\u6240\u4ee5\u653b\u64ca\u8005\u53ef\u4ee5\u6ce8\u5165\u7a0b\u5f0f\u78bc\u4e26\u63a7\u5236\u4efb\u4f55\u7a0b\u5e8f\u3002<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large\" src=\"https:\/\/blog.trendmicro.com\/trendlabs-security-intelligence\/files\/2016\/11\/dirty-cow-diagram.png\" alt=\"\" width=\"540\" height=\"224\" \/><\/p>\n<p><em>\u57161<\/em><em>\u3001\u6539\u9032\u7684Dirty COW<\/em><em>\u653b\u64ca<\/em><\/p>\n<p>&nbsp;<\/p>\n<p>\u9019\u7a2e\u653b\u64ca\u5c07\u653b\u64ca\u80fd\u529b\u5ef6\u4f38\u5230\u4e0d\u50c5\u50c5\u53ea\u662f\u8b80\u5beb\u6a94\u6848\uff0c\u800c\u662f\u76f4\u63a5\u5c07\u7a0b\u5f0f\u78bc\u5beb\u5165\u8a18\u61b6\u9ad4\u3002\u53ef\u4ee5\u53d6\u5f97root\u6b0a\u9650\u800c\u7121\u9808\u91cd\u65b0\u555f\u52d5\u6216\u9020\u6210\u7cfb\u7d71\u5d29\u6f70\u3002<\/p>\n<p>\u5728\u6211\u5011\u7684\u6982\u5ff5\u8b49\u660e\u5f71\u7247\u4e2d\uff0c\u52d5\u614b\u4fee\u6539libbinder.so\u8b93\u6211\u5011\u7684\u61c9\u7528\u7a0b\u5f0f\u53d6\u5f97\u7cfb\u7d71root\u6b0a\u9650\u3002\u6211\u5011\u4f7f\u7528\u9019\u80fd\u529b\u7e5e\u904eAndroid\u7684\u6b0a\u9650\u63a7\u7ba1\u4f86\u7aca\u53d6\u8cc7\u8a0a\u548c\u63a7\u5236\u7cfb\u7d71\u529f\u80fd\u3002<\/p>\n<p>&nbsp;<\/p>\n<p><strong><em>\u89e3\u6c7a\u65b9\u5f0f\u548c\u8cc7\u8a0a\u62ab\u9732<\/em><\/strong><\/p>\n<p>\u8da8\u52e2\u79d1\u6280\u5df2\u7d93\u5c07\u6b64\u554f\u984c\u901a\u5831Google\u3002Dirty COW\u6700\u521d\u662f\u900f\u904e<a href=\"https:\/\/source.android.com\/security\/bulletin\/2016-11-01.html\">2016\u5e7411\u6708<\/a>\u7684Android\u66f4\u65b0\u52a0\u4ee5\u4fee\u88dc\uff0c\u4f46\u9019\u76f4\u5230<a href=\"https:\/\/source.android.com\/security\/bulletin\/2016-12-01.html\">2016\u5e7412\u6708<\/a>\u7684\u66f4\u65b0\u624d\u5f37\u5236\u6b64\u9805\u4fee\u88dc\u3002\u4f7f\u7528\u8005\u53ef\u4ee5\u8a62\u554f\u884c\u52d5\u8a2d\u5099\u5ee0\u5546\u6216\u96fb\u4fe1\u696d\u8005\u4f86\u4e86\u89e3\u81ea\u5df1\u7684\u8a2d\u5099\u4f55\u6642\u53ef\u4ee5\u53d6\u5f97\u66f4\u65b0\u3002<\/p>\n<p>\u6211\u5011\u73fe\u5728\u6b63\u5728\u76e3\u63a7\u4f7f\u7528\u6b64\u985e\u653b\u64ca\u7684\u5a01\u8105\u3002\u5f37\u70c8\u5efa\u8b70\u4f7f\u7528\u8005\u53ea\u5b89\u88dd\u4f86\u81eaGoogle Play\u6216\u53ef\u4fe1\u8cf4\u7b2c\u4e09\u65b9\u61c9\u7528\u7a0b\u5f0f\u5546\u5e97\u7684\u61c9\u7528\u7a0b\u5f0f\uff0c\u4e26\u4f7f\u7528\u884c\u52d5\u5b89\u5168\u89e3\u6c7a\u65b9\u6848\uff08\u5982<a href=\"https:\/\/www.trendmicro.com\/us\/home\/products\/mobile-solutions\/android-security\/#compare-versions\">\u8da8\u52e2\u79d1\u6280\u7684\u884c\u52d5\u5b89\u5168\u9632\u8b77<\/a>\uff09\u4f86\u5728\u60e1\u610f\u5a01\u8105\u9032\u5165\u8a2d\u5099\u6216\u5c0d\u8cc7\u6599\u9020\u6210\u5371\u5bb3\u524d\u52a0\u4ee5\u5c01\u9396\u3002<\/p>\n<p>\u4f01\u696d\u4f7f\u7528\u8005\u61c9\u8a72\u8981\u8003\u616e\u5982<a href=\"https:\/\/www.trendmicro.com\/us\/enterprise\/product-security\/mobile-security\/\">\u8da8\u52e2\u79d1\u6280\u4f01\u696d\u884c\u52d5\u5b89\u5168\u9632\u8b77<\/a>\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u5b83\u6db5\u84cb\u4e86\u8a2d\u5099\u7ba1\u7406\u3001\u8cc7\u6599\u9632\u8b77\u3001\u61c9\u7528\u7a0b\u5f0f\u7ba1\u7406\u3001\u6cd5\u898f\u9075\u5faa\u7ba1\u7406\u3001\u8a2d\u5b9a\u6a94\u914d\u7f6e\u53ca\u5176\u4ed6\u529f\u80fd\uff0c\u8b93\u4f01\u696d\u4e3b\u53ef\u4ee5\u5728\u81ea\u5e36\u8a2d\u5099\uff08BYOD\uff09\u8a08\u756b\u7684\u96b1\u79c1\u5b89\u5168\u8207\u9748\u6d3b\u6027\u3001\u589e\u52a0\u751f\u7522\u529b\u4e4b\u9593\u53d6\u5f97\u5e73\u8861\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\uff20\u539f\u6587\u51fa\u8655\uff1a<a href=\"https:\/\/blog.trendmicro.com\/trendlabs-security-intelligence\/new-flavor-dirty-cow-attack-discovered-patched\/\">New Flavor of Dirty COW Attack Discovered, Patched<\/a> \u4f5c\u8005\uff1aVeo Zhang\uff08\u884c\u52d5\u5a01\u8105\u5206\u6790\u5e2b\uff09<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u65b0\u7684 Dirty COW\u653b\u64ca\u65b9\u5f0f\u00a0\u53ef\u8b93\u60e1\u610f\u7a0b\u5f0f\u78bc\u76f4\u63a5\u5beb\u5165\u7a0b\u5e8f Dirty COW\uff08\u7de8\u865fCVE-2016-519 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_wpscppro_dont_share_socialmedia":false,"_wpscppro_custom_social_share_image":0,"_facebook_share_type":"","_twitter_share_type":"","_linkedin_share_type":"","_pinterest_share_type":"","_linkedin_share_type_page":"","_instagram_share_type":"","_medium_share_type":"","_threads_share_type":"","_google_business_share_type":"","_selected_social_profile":[],"_wpsp_enable_custom_social_template":false,"_wpsp_social_scheduling":{"enabled":false,"datetime":null,"platforms":[],"status":"template_only","dateOption":"today","timeOption":"now","customDays":"","customHours":"","customDate":"","customTime":"","schedulingType":"absolute"},"_wpsp_active_default_template":true},"categories":[17,15,156],"tags":[2274,3001,3002,452],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/38685"}],"collection":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=38685"}],"version-history":[{"count":0,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/38685\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=38685"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=38685"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=38685"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}