{"id":1115,"date":"2016-08-24T02:38:41","date_gmt":"2016-08-24T02:38:41","guid":{"rendered":"http:\/\/www.inforsec.org\/wp\/?p=1115"},"modified":"2016-08-24T09:43:10","modified_gmt":"2016-08-24T09:43:10","slug":"%e5%a6%82%e4%bd%95%e9%bb%91%e6%8e%89%e7%be%8e%e5%9b%bd%e5%9b%bd%e5%ae%b6%e5%ae%89%e5%85%a8%e5%b1%80nsa%e7%9a%84%e7%bd%91%e7%ab%99-%e6%af%92%e9%b1%bf%e9%b1%bc","status":"publish","type":"post","link":"http:\/\/202.112.238.40\/wp\/?p=1115","title":{"rendered":"\u5982\u4f55\u201c\u9ed1\u201d\u6389\u7f8e\u56fd\u56fd\u5bb6\u5b89\u5168\u5c40(NSA)\u7684\u7f51\u7ad9\u2014\u2014\u6bd2\u9c7f\u9c7c\uff08Squoison\uff09\u653b\u51fb"},"content":{"rendered":"

\u3000\u3000\u5982\u4f55\u201c\u9ed1\u201d\u6389\u7f8e\u56fd\u56fd\u5bb6\u5b89\u5168\u5c40(NSA)\u7684\u7f51\u7ad9\u2014\u2014\u6bd2\u9c7f\u9c7c\uff08Squoison 1<\/sup>\uff09\u653b\u51fb<\/strong><\/h2>\n
<\/div>\n
\u4f5c\u8005\uff1a\u9648\u5efa\u519b\u00a0 \u6bb5\u6d77\u65b0\uff08\u6e05\u534e\u5927\u5b66\u7f51\u7edc\u7814\u7a76\u9662\uff09<\/div>\n
<\/div>\n
<\/div>\n
\u6211\u4eec\u6700\u8fd1\u53d1\u73b0\u4e86\u8457\u540d\u5f00\u6e90\u8f6f\u4ef6Squid\u5b58\u5728\u9ad8\u5371\u6f0f\u6d1e(CVE-2016-4553)\uff0c\u53ef\u4ee5\u5bfc\u81f4\u653b\u51fb\u8005\u8fdc\u7a0b\u6c61\u67d3\u4efb\u610fHTTP\u7f51\u7ad9\u7684\u7f13\u5b58\u3002Squid\u662f\u7ecf\u5178\u7684Web\u4ee3\u7406\u6216\u7f13\u5b58\u8f6f\u4ef6\uff0c\u8bb8\u591a\u5546\u4e1a\u7684Web\u7f13\u5b58\u3001\u4ee3\u7406\u6216\u5b89\u5168\u4ea7\u54c1\u4e5f\u662f\u57fa\u4e8eSquid\u5f00\u53d1\u7684\uff0c\u8fd9\u4e9b\u8bbe\u5907\u88ab\u5e7f\u6cdb\u90e8\u7f72\u4e8e\u7f51\u7edc\u8fd0\u8425\u5546(ISP)\u3001\u5bbd\u5e26\u5c0f\u533a\u3001\u516c\u53f8\u6216\u6821\u56ed\u7f51\uff0c\u7528\u4e8e\u8282\u7701\u7f51\u7edc\u5e26\u5bbd\u3001\u6539\u5584\u7f51\u7edc\u6027\u80fd\u3001\u63d0\u5347\u7528\u6237\u4f53\u9a8c\u3002\u653b\u51fb\u8005\u53ef\u4ee5\u901a\u8fc7\u6c61\u67d3\u8fd9\u79cd\u516c\u5171\u7684\u57fa\u7840\u8bbe\u65bd\u5411\u8be5\u7f51\u7edc\u6240\u6709\u7528\u6237\uff08\u53d7\u5bb3\u8005\uff09\u7684Web\u8bbf\u95ee\u8fd4\u56de\u4efb\u610f\u6307\u5b9a\u5185\u5bb9\uff0c\u4ece\u800c\u5bfc\u81f4\u9875\u9762\u66ff\u6362\u3001\u76d7\u53f7\u3001\u6302\u9a6c\u7b49\u4e25\u91cd\u540e\u679c\u3002\u6b64\u5916\uff0c\u7531\u4e8e\u8fd9\u79cd\u653b\u51fb\u53d1\u751f\u5728\u4e2d\u95f4\u7f51\u7edc\uff0c\u56e0\u800c\u5ba2\u6237\u7aef\u6d4f\u89c8\u5668\u548c\u670d\u52a1\u7aef\u7f51\u7ad9\u90fd\u5f88\u96be\u5bdf\u89c9\uff0c\u56e0\u6b64\u653b\u51fb\u9690\u853d\u6027\u975e\u5e38\u9ad8\u3002<\/div>\n

<\/p>\n

<\/div>\n
\u8fd9\u4e00\u6f0f\u6d1e\u662f\u7531\u4e8eSquid\u5bf9\u4e8eHTTP\u8bf7\u6c42\u4e2dHost\u5934\u5904\u7406\u4e0d\u5f53\uff0c\u5bfc\u81f4\u662f\u7528Squid\u7f13\u5b58\u670d\u52a1\u5668\u4e0d\u540c\u7f51\u7ad9\u7f13\u5b58\u4e4b\u95f4\u7684\u9694\u79bb\u88ab\u6253\u7834\uff0c\u653b\u51fb\u8005\u53ea\u9700\u53d1\u9001\u4e00\u4e2a\u6076\u610f\u8bf7\u6c42\u5c31\u53ef\u4ee5\u5b8c\u6210\u7f13\u5b58\u6c61\u67d3\u653b\u51fb\u3002\u8be5\u6f0f\u6d1e\u88abSquid\u56e2\u961f\u8bc4\u4e3a\u5371\u9669\u7ea7\u522b\u6700\u9ad8(Blocker)\u7684\u6f0f\u6d1e\u3002\u8fd9\u4e2a\u6f0f\u6d1e\u4f5c\u4e3a\u7814\u7a76\u6210\u679c\u7684\u4e00\u90e8\u5206\uff0c\u5c06\u5728\u56fd\u9645\u5b89\u5168\u9876\u7ea7\u4f1a\u8baeCCS 2016\u4e0a\u53d1\u8868[4]\u3002<\/div>\n
\u00a0\"19\"<\/div>\n
\u56fe1 \u5728\u67d0\u771f\u5b9e\u7f51\u7edc\u4e2d\uff0c\u653b\u51fb\u8005\u6c61\u67d3www.nsa.gov\u7f13\u5b58\u540e\uff0c\u53d7\u5bb3\u8005\u770b\u5230\u7684\u88ab\u6c61\u67d3\u9875\u9762<\/div>\n
<\/div>\n
\u6211\u4eec\u53d1\u73b0\uff0c\u5728\u90e8\u7f72\u6709Squid\u900f\u660e\u7f13\u5b58\u7684\u7f51\u7edc\u4e2d\uff0c\u653b\u51fb\u8005\u53ea\u9700\u8981\u53d1\u9001\u4e00\u4e2a\u5982\u4e0b\u6784\u9020\u7684HTTP\u8bf7\u6c42\uff0c\u4fbf\u53ef\u4ee5\u9020\u6210\u4efb\u610fHTTP\u7f51\u7ad9\u7684\u7f13\u5b58\u88ab\u6c61\u67d3\uff1a<\/div>\n
<\/div>\n
\u3000\u3000GET http:\/\/victim.com\/ HTTP\/1.1<\/div>\n
<\/div>\n
\u3000\u3000Host: attack.com<\/div>\n
<\/div>\n
\u8be5\u653b\u51fb\u5177\u4f53\u5de5\u4f5c\u539f\u7406\u548c\u6d41\u7a0b\u5982\u4e0b\u56fe2\u6240\u793a\u3002\u653b\u51fb\u8005\u5411\u81ea\u5df1\u7684\u670d\u52a1\u5668(attack.com)\u5efa\u7acbTCP\u8fde\u63a5\uff0c\u7136\u540e\u901a\u8fc7\u8fd9\u4e2a\u8fde\u63a5\u53d1\u9001\u5982\u56fe\u6240\u793a\u7684\u6076\u610f\u8bf7\u6c42\u3002Squid\u7684\u9a8c\u8bc1\u6a21\u5757\u5229\u7528\u201dattack.com\u201d\u6765\u68c0\u67e5Host\u5934\u4e0eIP\u5730\u5740\u662f\u5426\u5339\u914d\uff0c\u4f46\u662f\u5f53\u653b\u51fb\u670d\u52a1\u5668\u8fd4\u56de\u5185\u5bb9\u65f6\uff0cSquid\u7684\u7f13\u5b58\u6a21\u5757\u5374\u5229\u7528\u201dvictim.com\u201d\u6765\u7f13\u5b58\u5185\u5bb9\uff0c\u56e0\u6b64Squid\u5c06\u653b\u51fb\u670d\u52a1\u5668\u7684\u6076\u610f\u5185\u5bb9\u7f13\u5b58\u4e3avictim.com\u3002\u6700\u540e\u5f53\u53d7\u5bb3\u8005\u8bbf\u95eevictim.com\u65f6\uff0c\u5f97\u5230\u7684\u662f\u653b\u51fb\u8005\u6307\u5b9a\u7684\u5185\u5bb9\u3002<\/div>\n
\u00a0\"20\"<\/a><\/div>\n
\u3000\u3000\u56fe2 \u6f0f\u6d1e\u653b\u51fb\u6d41\u7a0b\u793a\u610f\u56fe<\/div>\n
<\/div>\n
\u9700\u8981\u6307\u51fa\u7684\u662f\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u901a\u8fc7\u6295\u653eFlash\u5e7f\u544a\u7684\u65b9\u5f0f\u5927\u89c4\u6a21\u8fdc\u7a0b\u5730\u53d1\u8d77\u8fd9\u79cd\u653b\u51fb\u3002\u7531\u4e8eSquid\u8f6f\u4ef6\u88ab\u5927\u91cfISP\u7528\u6765\u90e8\u7f72\u900f\u660e\u7f13\u5b58\uff0c\u56e0\u6b64\u8fd9\u4e2a\u6f0f\u6d1e\u5bf9\u4e92\u8054\u7f51\u5b89\u5168\u6709\u5f88\u5927\u5f71\u54cd\u3002<\/div>\n
<\/div>\n
\u4e0b\u9762\u662f\u6574\u4e2a\u653b\u51fb\u8fc7\u7a0b\u7684\u89c6\u9891\u6f14\u793a\uff0c<\/div>\n
<\/div>\n
https:\/\/drive.google.com\/file\/d\/0ByM36MBckzBaQUFES0VYRlZydUE\/view<\/a><\/div>\n
<\/div>\n
\u8fd9\u4e2a\u6f0f\u6d1e\u662f\u6211\u4eec\u6b64\u9879\u7814\u7a76\u6210\u679c\u7684\u4e00\u5c0f\u90e8\u5206\uff0c\u8fd8\u6709\u66f4\u591a\u7684\u4e00\u7cfb\u5217\u653b\u51fb(Host of Troubles)\uff0c\u4f8b\u5982\u6c61\u67d3Apache Traffic Server\u7f13\u5b58\uff0c\u6c61\u67d3CDN\u7f13\u5b58\uff0c\u7ed5\u8fc7Firewall\uff0c\u7ed5\u8fc7WAF\u7b49\u3002\u66f4\u591a\u8be6\u7ec6\u653b\u51fb\u8bf7\u53c2\u8003\u6211\u4eec\u7684\u7f51\u7ad9(hostoftroubles.com)[2]\u548c\u8bba\u6587[4]\u3002<\/div>\n
<\/div>\n
\u5982\u4f55\u9632\u8303<\/strong><\/div>\n
<\/div>\n
\u8be5\u6f0f\u6d1e\u540c\u65f6\u5b58\u5728\u4e8eSquid 3\u548cSquid 4\u4e2d\u3002\u76ee\u524dSquid\u5b98\u65b9\u5df2\u7ecf\u4fee\u590d\u4e86\u8fd9\u4e2a\u6f0f\u6d1e[1]\u3002<\/div>\n
<\/div>\n
a)\u7f51\u7edc\u8fd0\u8425\u5546\u5e94\u5f53\u5347\u7ea7Squid\u7f13\u5b58\u8f6f\u4ef6\u5230\u6700\u65b0\u7248\uff0c\u6765\u5b8c\u5168\u9632\u5fa1\u8fd9\u79cd\u653b\u51fb\u3002<\/div>\n
<\/div>\n
b)\u7f51\u7ad9\u7ba1\u7406\u5458\u53ef\u4ee5\u901a\u8fc7\u90e8\u7f72HTTPS\uff0c\u5e76\u542f\u7528preloaded HSTS\u6765\u51cf\u8f7b\u8fd9\u79cd\u653b\u51fb\u7684\u5f71\u54cd\u3002<\/div>\n
<\/div>\n
c)\u6d4f\u89c8\u5668\u7528\u6237\u53ef\u4ee5\u4f7f\u7528\u4f5c\u8005\u63d0\u4f9b\u7684\u5728\u7ebf\u68c0\u6d4b\u5de5\u5177[3]\uff0c\u68c0\u6d4b\u81ea\u5df1\u7684\u7f51\u7edc\u662f\u5426\u53ef\u4ee5\u88ab\u653b\u51fb\u3002<\/div>\n
<\/div>\n
\u6ce8\u91ca\uff1a<\/strong><\/div>\n
<\/div>\n
1 \u3001Squison\u662fSquid \uff08\u9c7f\u9c7c\uff09\u548c Poison\uff08\u4e2d\u6bd2\u3001\u4e0b\u6bd2\uff09\u4e24\u4e2a\u8bcd\u7684\u5408\u6210\u3002<\/div>\n
<\/div>\n
<\/div>\n
\u53c2\u8003\u94fe\u63a5\uff1a<\/strong><\/div>\n
<\/div>\n
[1] Squid\u5bf9\u8be5\u6f0f\u6d1e\u7684\u5b89\u5168\u516c\u544a\uff1ahttp:\/\/www.squid-cache.org\/Advisories\/SQUID-2016_7.txt<\/a><\/div>\n
<\/div>\n
[2] Host of Troubles\u7f51\u7ad9\uff1ahttps:\/\/hostoftroubles.com<\/a><\/div>\n
<\/div>\n
[3] \u6f0f\u6d1e\u5728\u7ebf\u68c0\u6d4b\u5de5\u5177: https:\/\/hostoftroubles.com\/online-checker.html<\/a><\/div>\n
<\/div>\n
[4] CCS2016\u8bba\u6587\u94fe\u63a5\uff1ahttp:\/\/netsec.ccert.edu.cn\/duanhx\/files\/2010\/12\/host_of_troubles.pdf<\/a><\/div>\n
<\/div>\n
<\/div>\n","protected":false},"excerpt":{"rendered":"

\u3000\u3000\u5982\u4f55\u201c\u9ed1\u201d\u6389\u7f8e\u56fd\u56fd\u5bb6\u5b89\u5168\u5c40(NSA)\u7684\u7f51\u7ad9\u2014\u2014\u6bd2\u9c7f\u9c7c\uff08Squoison 1\uff09\u653b\u51fb \u4f5c\u8005\uff1a\u9648\u5efa\u519b\u00a0… Continue reading → <\/span><\/a><\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-1115","post","type-post","status-publish","format-standard","hentry","category-research"],"_links":{"self":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts\/1115","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1115"}],"version-history":[{"count":11,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts\/1115\/revisions"}],"predecessor-version":[{"id":1136,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts\/1115\/revisions\/1136"}],"wp:attachment":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1115"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1115"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1115"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}