{"id":54817,"date":"2018-03-08T14:00:16","date_gmt":"2018-03-08T06:00:16","guid":{"rendered":"https:\/\/blog.trendmicro.com.tw\/?p=54817"},"modified":"2018-03-13T14:50:32","modified_gmt":"2018-03-13T06:50:32","slug":"%e9%9b%bb%e5%ad%90%e9%83%b5%e4%bb%b6%e8%bb%9f%e9%ab%94exim%e7%88%86%e6%bc%8f%e6%b4%9e%e8%b6%85%e9%81%8e40%e8%90%ac%e5%8f%b0%e4%bc%ba%e6%9c%8d%e5%99%a8%e9%9d%a2%e8%87%a8%e5%9a%b4%e9%87%8d%e6%bc%8f","status":"publish","type":"post","link":"https:\/\/blog.trendmicro.com.tw\/?p=54817","title":{"rendered":"\u96fb\u5b50\u90f5\u4ef6\u8edf\u9ad4Exim\u7206\u6f0f\u6d1e,\u8d85\u904e40\u842c\u53f0\u4f3a\u670d\u5668\u9762\u81e8\u56b4\u91cd\u6f0f\u6d1e\u98a8\u96aa"},"content":{"rendered":"<p>\u53f0\u7063\u7814\u7a76\u4eba\u54e1\u6700\u8fd1\u5728\u88ab\u5ee3\u6cdb\u4f7f\u7528(\u4f46\u4f4e\u8abf)\u7684\u96fb\u5b50\u90f5\u4ef6\u8edf\u9ad4Exim\u4e2d<a href=\"https:\/\/arstechnica.com\/information-technology\/2018\/03\/code-execution-flaw-in-exim-imperils-400k-machines-have-you-patched\/\">\u767c\u73fe<\/a>\u4e00\u500b\u56b4\u91cd\u7684\u6f0f\u6d1e\u3002\u5982\u679c\u906d\u53d7\u653b\u64ca\uff0c\u9019\u500b\u6f0f\u6d1e\u53ef\u4ee5\u8b93\u653b\u64ca\u8005\u9060\u7aef\u57f7\u884c\u60e1\u610f\u7a0b\u5f0f\u78bc\u3002<a href=\"https:\/\/devco.re\/blog\/2018\/03\/06\/exim-off-by-one-RCE-exploiting-CVE-2018-6789-en\/\">\u5b89\u5168\u5831\u544a<\/a>\u6307\u51fa\u81f3\u5c11\u670940\u842c\u53f0\u4f3a\u670d\u5668\u9762\u81e8\u98a8\u96aa\u3002<\/p>\n<p>\u9019\u662f\u4e00\u500b\u5f71\u97ff\u5ee3\u6cdb\u7684\u554f\u984c\uff0c\u5c24\u5176\u662f\u56e0\u70ba<a href=\"https:\/\/www.securityspace.com\/s_survey\/data\/man.201702\/mxsurvey.html\">\u7db2\u8def\u4e0a\u7684\u90f5\u4ef6\u4f3a\u670d\u5668\u670956%<\/a>\u904b\u884cExim(\u6839\u64da2017\u5e743\u6708\u7684\u8abf\u67e5)\u3002Exim\u662f\u500b\u90f5\u4ef6\u50b3\u8f38\u4ee3\u7406\u7a0b\u5f0f(MTA)\uff0c\u5c07\u90f5\u4ef6\u5f9e\u5bc4\u4ef6\u8005\u50b3\u9001\u5230\u6536\u4ef6\u8005\u7684\u8edf\u9ad4\uff0c\u57fa\u672c\u4e0a\u662f\u7528\u4f5c\u4e2d\u7e7c\u7a0b\u5f0f\u3002<\/p>\n<p>Exim\u958b\u767c\u4eba\u54e1\u5df2\u7d93\u5728<a href=\"https:\/\/www.exim.org\/exim-html-4.90.1\/doc\/html\/spec_html\/index.html\">\u7248\u672c4.90.1<\/a>\u4fee\u5fa9\u4e86\u6b64\u6f0f\u6d1e\uff0c\u6b64\u7248\u672c\u57282\u67088\u65e5\u767c\u5e03(\u6f0f\u6d1e\u5831\u544a\u767c\u5e03\u5f8c\u4e09\u5929)\u3002\u4ed6\u5011\u5efa\u8b70\u4f7f\u7528\u8005\u8981\u7acb\u523b\u5b89\u88dd\u9019\u500b\u4fee\u88dc\u7a0b\u5f0f\uff0c\u4e26\u4e14\u8868\u793a\u4e4b\u524d\u7684\u6240\u6709\u7248\u672c\u90fd\u5df2\u7d93\u904e\u671f\u3002\u4f46\u662f\u8003\u616e\u5230\u53d7\u5f71\u97ff\u4f3a\u670d\u5668\u7684\u6578\u91cf\uff0c\u53ef\u80fd\u9700\u8981\u6578\u9031\u751a\u81f3\u6578\u500b\u6708\u624d\u80fd\u66f4\u65b0\u5b8c\u6240\u6709\u6709\u6f0f\u6d1e\u7684\u4f3a\u670d\u5668\u3002<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Exim<\/strong><strong>\u6f0f\u6d1e\u7684\u8a73\u7d30\u8cc7\u8a0a<\/strong><\/p>\n<p>\u7814\u7a76\u4eba\u54e1\u5c07\u6b64\u554f\u984c\u6b78\u985e\u70ba\u201d\u8a8d\u8b49\u524d\u9060\u7aef\u7a0b\u5f0f\u78bc\u57f7\u884c\u201d\u6f0f\u6d1e\uff0c\u4e26\u5c07\u5176\u7de8\u865f\u70ba<a href=\"https:\/\/nvd.nist.gov\/vuln\/detail\/CVE-2018-6789\">CVE-2018-6789<\/a>\u3002\u9019\u662f\u4f4d\u65bcbase64\u89e3\u78bc\u51fd\u5f0f\u5167\u7684\u55ae\u5b57\u5143\u7de9\u885d\u5340\u6ea2\u4f4d\u554f\u984c\u3002\u900f\u904e\u5c07\u7279\u88fd\u5167\u5bb9\u9001\u5165\u6709\u6f0f\u6d1e\u7684Exim\u4f3a\u670d\u5668\u5c31\u53ef\u80fd\u8b93\u653b\u64ca\u8005\u9060\u7aef\u57f7\u884c\u7a0b\u5f0f\u78bc\u3002<!--more--><\/p>\n<p>\u9019\u6f0f\u6d1e\u5f71\u97ff\u5230\u6240\u6709\u7684Exim\u7248\u672c\u3002\u7814\u7a76\u4eba\u54e1\u5728\u4ed6\u5011\u7684\u76f8\u95dc<a href=\"https:\/\/devco.re\/blog\/2018\/03\/06\/exim-off-by-one-RCE-exploiting-CVE-2018-6789-en\/\">\u5831\u544a<\/a>\u4e2d\u8a73\u7d30\u4ecb\u7d39\u4e86\u6b64\u4e00\u6f0f\u6d1e\uff0c\u4e26\u6307\u51fabase64\u89e3\u78bc\u662f\u201d\u5982\u6b64\u57fa\u672c\u7684\u529f\u80fd\uff0c\u56e0\u6b64\u9019\u500b\u6f0f\u6d1e\u76f8\u7576\u5bb9\u6613\u88ab\u89f8\u767c\u3002\u201d<\/p>\n<p>Exim\u958b\u767c\u4eba\u54e1\u5728\u6700\u8fd1\u7684<a href=\"https:\/\/exim.org\/static\/doc\/security\/CVE-2018-6789.txt\">\u5b89\u5168\u66f4\u65b0<\/a>\u4e2d\u78ba\u8a8d\u4e86\u6b64\u6f0f\u6d1e\u3002\u201d\u76ee\u524d\u6211\u5011\u5c1a\u4e0d\u6e05\u695a\u56b4\u91cd\u7a0b\u5ea6\uff0c\u201d\u4ed6\u5011\u8aaa\uff0c\u4e26\u88dc\u5145\u8aaa\u4ed6\u5011\u8a8d\u70ba\u201d\u6f0f\u6d1e\u653b\u64ca\u5f88\u56f0\u96e3\u201d\uff0c\u4f46\u662f\u201d\u89e3\u6c7a\u63aa\u65bd\u5c1a\u672a\u77e5\u201d\u3002<\/p>\n<p>\u4f7f\u7528Exim\u7684\u7d44\u7e54\u6700\u597d\u8981\u99ac\u4e0a\u66f4\u65b0\u5230\u6700\u65b0\u7248\u672c\u3002\u4fee\u88dc\u7a0b\u5f0f\u7684\u91cd\u8981\u6027\u4e0d\u8a00\u800c\u8aed \u2013 \u5f88\u591a\u91cd\u8981\u6f0f\u6d1e\u90fd\u6703\u88ab\u5118\u65e9\u56de\u5831\u548c\u4fee\u5fa9\uff0c\u5f88\u5feb\u5c31\u6703\u63a8\u51fa\u4fee\u88dc\u7a0b\u5f0f\u3002\u56e0\u6b64\uff0c\u4f01\u696d\u61c9\u8a72\u5c07\u9ad8\u6548\u7387\u4e14\u5168\u9762\u6027\u7684<a href=\"https:\/\/www.trendmicro.com\/vinfo\/us\/security\/news\/vulnerabilities-and-exploits\/patching-problems-and-how-to-solve-them\">\u4fee\u88dc\u653f\u7b56<\/a>\u52a0\u5165\u4ed6\u5011\u7684\u5b89\u5168\u8a08\u756b\u4e2d\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>@\u539f\u6587\u51fa\u8655\uff1a<a href=\"https:\/\/www.trendmicro.com\/vinfo\/us\/security\/news\/cybercrime-and-digital-threats\/over-400-000-servers-reportedly-at-risk-from-critical-vulnerability\">Over 400,000 Servers Reportedly at Risk from Critical Vulnerability<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u53f0\u7063\u7814\u7a76\u4eba\u54e1\u6700\u8fd1\u5728\u88ab\u5ee3\u6cdb\u4f7f\u7528(\u4f46\u4f4e\u8abf)\u7684\u96fb\u5b50\u90f5\u4ef6\u8edf\u9ad4Exim\u4e2d\u767c\u73fe\u4e00\u500b\u56b4\u91cd\u7684\u6f0f\u6d1e\u3002\u5982\u679c\u906d\u53d7\u653b\u64ca\uff0c\u9019\u500b\u6f0f\u6d1e\u53ef\u4ee5\u8b93 [&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":[3654,156],"tags":[3767,452],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/54817"}],"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=54817"}],"version-history":[{"count":0,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/54817\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=54817"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=54817"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=54817"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}