{"id":16958,"date":"2016-03-03T10:15:30","date_gmt":"2016-03-03T02:15:30","guid":{"rendered":"https:\/\/blog.trendmicro.com.tw\/?p=16958"},"modified":"2016-03-14T10:18:47","modified_gmt":"2016-03-14T02:18:47","slug":"drown-sslv2%e6%bc%8f%e6%b4%9e%e5%87%ba%e7%8f%be%e4%ba%86%ef%bc%8c%e8%ae%93%e4%b8%89%e5%88%86%e4%b9%8b%e4%b8%80%e7%9a%84https%e4%bc%ba%e6%9c%8d%e5%99%a8%e9%99%b7%e5%85%a5%e5%8d%b1%e9%9a%aa","status":"publish","type":"post","link":"https:\/\/blog.trendmicro.com.tw\/?p=16958","title":{"rendered":"DROWN SSLv2\u51fa\u73fe\u6f0f\u6d1e\uff0c\u4e09\u5206\u4e4b\u4e00\u7684HTTPS\u4f3a\u670d\u5668\u9677\u5165\u5371\u96aa"},"content":{"rendered":"<p>\u4e00\u500b\u300c\u65b0\u300d\u800c\u91cd\u8981\u7684\u6f0f\u6d1e\u88ab\u767c\u73fe\u4e86\uff0c\u6703\u5f71\u97ff\u5230 HTTPS\u53ca\u6709\u4f7f\u7528 SSL\/TLS\u7684\u670d\u52d9\u3002\u9019\u500b\u6f0f\u6d1e\u5b58\u5728\u65bcSSLv2\u5354\u5b9a\u4e2d\uff0c\u5f71\u97ff\u6240\u6709\u4f7f\u7528\u7684\u7a0b\u5f0f\u3002\u7814\u7a76\u4eba\u54e1\u5c07\u6b64\u653b\u64ca\u7a31\u70ba<a href=\"https:\/\/drownattack.com\/\">DROWN<\/a>\uff0c\u300cDecrypting RSA using Obsolete and Weakened eNcryption\uff08\u5373\u5229\u7528\u904e\u6642\u548c\u5f31\u52a0\u5bc6\u4f86\u89e3\u5bc6RSA\uff09\u300d\u7684\u7e2e\u5beb\u3002\u6b64\u653b\u64ca\u8b93\u653b\u64ca\u8005\u53ef\u4ee5\u8b80\u53d6\u6216\u7aca\u53d6\u900f\u904e\u300c\u5b89\u5168\u300d\u9023\u7dda\u9001\u51fa\u7684\u8cc7\u8a0a\u3002\u76ee\u524d\u9084\u6c92\u6709\u5df2\u77e5\u7684\u771f\u5be6\u653b\u64ca\u767c\u751f\u3002<\/p>\n<p>DROWN\u548c\u5176\u4ed6SSLv2\u554f\u984c\u5728\u6700\u8fd1\u7684\u5b89\u5168\u901a\u5831\u4e2d\u4f7f\u7528\u4e0b\u5217CVE\u7de8\u865f\uff1a<\/p>\n<ul>\n<li>\u8de8\u5354\u5b9a\u653b\u64ca\u4f7f\u7528SSLv2\u7684TLS\uff08DROWN\uff09\uff08<a href=\"https:\/\/www.openssl.org\/news\/secadv\/20160301.txt\">CVE-2016-0800<\/a>\uff09<\/li>\n<li>SSLv2\u4e0d\u6703\u5c01\u9396\u505c\u7528\u7684\u52a0\u5bc6\uff08<a href=\"https:\/\/www.openssl.org\/news\/secadv\/20160128.txt\">CVE-2015-3197<\/a>\uff09<\/li>\n<li>\u4f7f\u7528\u5206\u6cbb\u6cd5\uff08Divide and conquer\uff09\u627e\u51faSSLv2\u7684\u6703\u8a71\u91d1\u9470\uff08session key\uff09\uff08<a href=\"https:\/\/www.openssl.org\/news\/secadv\/20160301.txt\">CVE-2016-0703<\/a>\uff09<\/li>\n<\/ul>\n<p>SSLv2\u88ab\u8a8d\u70ba\u662f\u904e\u6642\u7684\u5354\u5b9a\uff08\u53ef\u4ee5\u8ffd\u6eaf\u52301995\u5e742\u6708\uff09\u3002\u5df2\u7d93\u4e0d\u518d\u88ab\u5efa\u8b70\u4f7f\u7528\u5728\u4efb\u4f55\u5de5\u4f5c\u74b0\u5883\u4e2d\u3002\u7136\u800c\uff0c\u8a31\u591a\u4f3a\u670d\u5668\u4ecd\u7136\u56e0\u70ba\u5411\u4e0b\u76f8\u5bb9\u7684\u95dc\u4fc2\u800c\u652f\u63f4SSLv2\u3002\u4f3a\u670d\u5668\u7ba1\u7406\u54e1\u5e0c\u671b\u78ba\u4fdd\u81ea\u5df1\u7684\u670d\u52d9\u53ef\u4ee5\u76e1\u53ef\u80fd\u5730\u63d0\u4f9b\u7d66\u66f4\u591a\u4f7f\u7528\u8005\uff1b\u4ed6\u5011\u5e0c\u671b\u78ba\u4fdd\u4f7f\u7528\u8005\u5728\u9023\u5230\u4f3a\u670d\u5668\u6642\uff08\u5373\u4fbf\u662f\u7528\u904e\u6642\u7684\u7cfb\u7d71\uff09\uff0c\u53ef\u4ee5\u5b58\u53d6\u6240\u6709\u53ef\u7528\u7684\u670d\u52d9\u3002<\/p>\n<p>\u8981\u9032\u884cDROWN\u653b\u64ca\uff0c\u653b\u64ca\u8005\u5fc5\u9808\u80fd\u5920\u9032\u884c\u4e2d\u9593\u4eba\uff08MITM\uff09\u653b\u64ca\uff0c\u4e26\u4e14\u53ef\u4ee5\u5c0d\u76ee\u6a19\u4f3a\u670d\u5668\u9032\u884c\u591a\u6b21SSLv2\u9023\u7dda\u3002\u5982\u679c\u653b\u64ca\u8005\u5c0d\u4f3a\u670d\u5668\u9032\u884c\u591a\u500bSSLv2\u9023\u7dda\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528\u66b4\u529b\u7834\u89e3\u6cd5\u627e\u51fa\u6703\u8a71\u91d1\u9470\u3002\u4e00\u65e6\u627e\u5230\u91d1\u9470\uff0c\u5c31\u53ef\u4ee5\u89e3\u5bc6\u88ab\u64f7\u53d6\u7684\u7db2\u8def\u6d41\u91cf\u3002<\/p>\n<p>\u5982\u679c\u6eff\u8db3\u5e95\u4e0b\u5169\u500b\u689d\u4ef6\u4e2d\u7684\u4efb\u4f55\u4e00\u500b\uff0c\u4f3a\u670d\u5668\u5c31\u53ef\u80fd\u53d7\u5230DROWN\u653b\u64ca\u5f71\u97ff\uff1a<\/p>\n<ol>\n<li>\u652f\u63f4SSLv2\u8acb\u6c42<\/li>\n<li>\u5176\u79c1\u5bc6\u91d1\u9470\u88ab\u7528\u5728\u5176\u4ed6\u5141\u8a31SSLv2\u9023\u7dda\u7684\u4f3a\u670d\u5668\u4e0a\uff0c\u5373\u4fbf\u662f\u7528\u8f03\u65b0\u7684SSL\/TLS\u5354\u5b9a\u7248\u672c<\/li>\n<\/ol>\n<p>\u63d0\u51faDROWN\u7684\u7814\u7a76\u8005\u8072\u7a31\uff0c\u670917%\u7684HTTPS\u4f3a\u670d\u5668\u4ecd\u7136\u5141\u8a31SSLv2\u9023\u7dda\u3002\u56e0\u6b64\uff0c\u5982\u679c\u80fd\u5920\u9032\u884c\u4e2d\u9593\u4eba\uff08MITM\uff09\u653b\u64ca\uff0c\u653b\u64ca\u8005\u53ef\u4ee5\u7528SSLv2\u9023\u7dda\u4f86\u8a66\u63a2\u4f3a\u670d\u5668\uff08\u53d7\u5bb3\u8005\u96fb\u8166\u4e0d\u6703\u7528\u6b64\u767c\u9001\u9023\u7dda\uff09\uff0c\u627e\u51fa\u6703\u8a71\u91d1\u9470\uff0c\u7528\u5b83\u4f86\u89e3\u5bc6\uff08\u751a\u81f3\u662fTLS\u6d41\u91cf\uff09\u3002<\/p>\n<p>\u8003\u616e\u5230\u91cd\u8907\u4f7f\u7528\u91d1\u9470\u7684\u72c0\u6cc1\uff0c\u6709<a href=\"https:\/\/drownattack.com\/\">\u53e6\u591616%<\/a>\u7684HTTPS\u4f3a\u670d\u5668\u6703\u53d7\u5230\u5f71\u97ff\uff0c\u6240\u4ee5\u6709\u4e09\u5206\u4e4b\u4e00\u7684HTTPS\u4f3a\u670d\u5668\u90fd\u6709\u5371\u96aa\u3002\u6b64\u5916\uff0c\u5982\u679c\u5176\u4ed6\u670d\u52d9\uff08\u5982SMTP\u3001POP\u7b49\uff09\u4e5f\u5728\u9019\u4e9b\u4f3a\u670d\u5668\u4e0a\u5171\u7528\u540c\u4e00\u628a\u91d1\u9470\uff0c\u5b83\u5011\u4e5f\u6703\u6709\u5371\u96aa\u3002<\/p>\n<p>\u7814\u7a76\u4eba\u54e1\u5df2\u7d93\u5728GitHub\u4e0a\u767c\u8868\u6383\u63cf\u7a0b\u5f0f\uff0c\u5b83\u6703\u767c\u9001SSLv2\u8acb\u6c42\u5230\u7d66\u5b9a\u7aef\u53e3\u4e26\u7b49\u5f85\u56de\u61c9\uff1b\u4ee5\u6b64\u6e2c\u8a66\u6f0f\u6d1e\u662f\u5426\u5b58\u5728\u3002\u9019\u4e26\u975e\u6307\u9019\u4f3a\u670d\u5668\u5df2\u7d93\u771f\u7684\u88ab\u653b\u64ca\u4e86\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"https:\/\/blog.trendmicro.com\/trendlabs-security-intelligence\/files\/2016\/03\/drown-tba.png\" alt=\"\" width=\"432\" height=\"163\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><em>\u57161<\/em><em>\u3001DROWN<\/em><em>\u5075\u6e2c\u5de5\u5177\u5c55\u793a\uff08\u9ede\u5165\u4ee5\u653e\u5927\uff09<\/em><\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u89e3\u6c7a\u8fa6\u6cd5<\/strong><\/p>\n<p>\u8981\u4fee\u5fa9\u6b64\u6f0f\u6d1e\u76f8\u7576\u7c21\u55ae\uff1a\u5982\u540cOpenSSL\u7684<a href=\"https:\/\/www.openssl.org\/news\/secadv\/20160301.txt\">\u5efa\u8b70<\/a>\u4e00\u6a23\uff0c\u4f3a\u670d\u5668\u7ba1\u7406\u54e1\u9700\u8981\u78ba\u4fdd\u5728\u4efb\u4f55\u5730\u65b9\u90fd\u4e0d\u518d\u652f\u63f4SSLv2\u3002SSLv2\u5df2\u7d93\u904e\u6642\uff0c\u6709\u8a31\u591a\u5df2\u77e5\u6f0f\u6d1e\uff0c\u4eca\u65e5\u5df2\u7d93\u4e0d\u8a72\u518d\u4f7f\u7528\u3002\u6b64\u5916\uff0c\u4f3a\u670d\u5668\u7684\u79c1\u9470\u4e0d\u8a72\u88ab\u91cd\u8907\u4f7f\u7528\uff0c\u7279\u5225\u662f\u904e\u53bb\u66fe\u7d93\u652f\u63f4\u904eSSLv2\u7684\u4f3a\u670d\u5668\u3002<\/p>\n<p>OpenSSL 1.0.2\u7684\u4f7f\u7528\u8005\u61c9\u8a72\u5347\u7d1a\u52301.0.2g\u3002OpenSSL 1.0.1\u7684\u4f7f\u7528\u8005\u61c9\u8a72\u5347\u7d1a\u52301.0.1s\u3002\u66f4\u820a\u7248\u672c\u7684OpenSSL\u4f7f\u7528\u8005\u61c9\u8a72\u5347\u7d1a\u5230\u9019\u5169\u7248\u672c\u7684\u5176\u4e2d\u4e00\u500b\u3002<\/p>\n<p>Deep Security\u5ba2\u6236\u53ef\u4ee5\u4f7f\u7528\u4e0b\u5217DPI\u898f\u5247\u4e0b\u4f86\u6aa2\u67e5\u74b0\u5883\u4e2d\u662f\u5426\u6709SSLv2\u88ab\u4f7f\u7528\uff1a<\/p>\n<ul>\n<li>1005321 \u2013 Detected SSLv2 Request<\/li>\n<\/ul>\n<p>\u5728SSL\/TLS \u4e2d\u6709\u5176\u4ed6\u5f31\u9ede\u6703\u8b93\u653b\u64ca\u66f4\u52a0\u5bb9\u6613\uff0c\u7279\u5225\u662f\u9084\u5728\u4f7f\u7528\u51fa\u53e3\u7b49\u7d1a\u52a0\u5bc6\uff08export grade cipher\uff09\u7684\u8a71\u3002\u5e95\u4e0b\u898f\u5247\u53ef\u4ee5\u5e6b\u5fd9\u5075\u6e2c\u548c\u89e3\u6c7a\u9019\u985e\u98a8\u96aa\uff1a<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>1006561 \u2013 Identified Usage Of TLS\/SSL EXPORT Cipher Suite In Response<\/li>\n<li>1006485 \u2013 SSL RSA Downgrade Vulnerability<\/li>\n<li>1006562 \u2013 Identified Usage Of TLS\/SSL EXPORT Cipher Suite In Request<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>\uff20\u539f\u6587\u51fa\u8655\uff1a<a href=\"https:\/\/blog.trendmicro.com\/trendlabs-security-intelligence\/drown-sslv2-vulnerability-rears-ugly-head-puts-one-third-of-https-servers-at-risk\/\">DROWN SSLv2 Vulnerability Rears Ugly Head, Puts One-Third of HTTPS Servers At Risk<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u500b\u300c\u65b0\u300d\u800c\u91cd\u8981\u7684\u6f0f\u6d1e\u88ab\u767c\u73fe\u4e86\uff0c\u6703\u5f71\u97ff\u5230 HTTPS\u53ca\u6709\u4f7f\u7528 SSL\/TLS\u7684\u670d\u52d9\u3002\u9019\u500b\u6f0f\u6d1e\u5b58\u5728\u65bcSSLv2\u5354 [&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":[156],"tags":[2678,1731,452],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/16958"}],"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=16958"}],"version-history":[{"count":0,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/16958\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16958"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16958"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16958"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}