{"id":54878,"date":"2018-03-16T09:00:05","date_gmt":"2018-03-16T01:00:05","guid":{"rendered":"https:\/\/blog.trendmicro.com.tw\/?p=54878"},"modified":"2018-03-15T18:55:25","modified_gmt":"2018-03-15T10:55:25","slug":"memcached-ddos-%e6%94%bb%e6%93%8a%e7%9a%84-poc-%e6%bc%8f%e6%b4%9e%e7%a8%8b%e5%bc%8f%e7%a2%bc%e9%81%ad%e5%85%ac%e9%96%8b%e8%87%aa%e6%88%91%e9%98%b2%e7%a6%a6%e5%9b%9b%e6%8e%aa%e6%96%bd","status":"publish","type":"post","link":"https:\/\/blog.trendmicro.com.tw\/?p=54878","title":{"rendered":"Memcached DDoS \u653b\u64ca\u7684 PoC \u6f0f\u6d1e\u7a0b\u5f0f\u78bc\u906d\u516c\u958b,\u81ea\u6211\u9632\u79a6\u56db\u63aa\u65bd"},"content":{"rendered":"

\u4e09\u6708\u521d\u767c\u751f\u4e86\u5169\u8d77\u7834\u8a18\u9304\u7684\u5206\u6563\u5f0f\u963b\u65b7\u670d\u52d9 (DDoS) \u4e8b\u4ef6\u3002\u7b2c\u4e00\u8d77\u662f GitHub \u906d\u5230\u53f2\u7121\u524d\u4f8b 1.35 Tbps \u7684 DDoS \u653b\u64ca<\/a>\uff1b\u4e94\u5929\u5f8c Arbor Networks \u8b49\u5be6<\/a>\uff0c\u4e00\u5bb6\u7f8e\u570b\u670d\u52d9\u4f9b\u61c9\u5546\u906d\u5230 1.7 Tbps \u7684 DDoS \u653b\u64ca\u3002\u81ea\u5f9e\u653b\u64ca\u8005\u958b\u59cb\u6feb\u7528 Memcached \u4f3a\u670d\u5668\u653e\u5927\u8cc7\u6e90\uff0c\u5206\u6563\u5f0f\u963b\u65b7\u670d\u52d9\u653b\u64ca (DDoS)<\/a> \u653b\u64ca\u7684\u7b49\u7d1a\u5c31\u6025\u907d\u4e0a\u5347\u3002<\/p>\n

\"Memcached<\/a><\/p>\n

Memcached <\/strong>\u4f3a\u670d\u5668\u5982\u4f55\u906d\u5230\u6feb\u7528\uff1f<\/strong><\/p>\n

\u653b\u64ca\u8005\u5047\u5192\u76ee\u6a19\u7684 IP \u4f4d\u5740\uff0c\u5411\u8a31\u591a Memcached \u4f3a\u670d\u5668\u9001\u51fa\u8acb\u6c42\uff0c\u800c\u76ee\u6a19\u63a5\u6536\u5230\u7684\u56de\u61c9\u6d41\u91cf\uff0c\u53ef\u80fd\u9ad8\u65bc\u8acb\u6c42\u672c\u8eab 50,000 \u500d\uff0c\u5c0e\u81f4\u53d7\u5bb3\u8005\u7684\u7db2\u7ad9\u906d\u5230\u9f90\u5927\u7684\u60e1\u610f\u6d41\u91cf\u8f5f\u70b8\u3002\u9019\u7a2e\u624b\u6cd5\u985e\u4f3c\u65bc\u53cd\u5c04\u653b\u64ca<\/a>\uff0c\u5176\u66fe\u5728 2013 \u5e74\u53ca 2014 \u5e74\u5f15\u767c\u707d\u60c5<\/a>\uff0c\u4f46\u9019\u6b21\u4f7f\u7528\u7684\u670d\u52d9\u4e0d\u540c\uff0c\u5a01\u529b\u66f4\u52a0\u5f37\u5927\u3002<\/p>\n

\u6700\u8fd1\uff0cMemcached \u653e\u5927\u5f0f\u653b\u64ca\u7684\u5169\u7a2e\u6982\u5ff5\u9a57\u8b49 (PoC) \u6f0f\u6d1e\u7a0b\u5f0f\u78bc\uff0c\u986f\u793a\u51fa\u9019\u985e\u5927\u898f\u6a21 DDoS \u653b\u64ca\u7684\u767c\u52d5\u65b9\u5f0f\u3002\u7b2c\u4e00\u500bPoC \u540d\u70ba Memcrashed<\/a>\uff0c\u4f4d\u65bc Python \u6307\u4ee4\u78bc\u4e2d\uff0c\u5176\u85c9\u7531 Shodan \u641c\u5c0b\u5f15\u64ce\u9396\u5b9a\u6613\u53d7\u653b\u64ca\u7684 Memcached \u4f3a\u670d\u5668\uff0c\u518d\u900f\u904e\u5b83\u5011\u653b\u64ca\u76ee\u6a19\u3002\u53ea\u9700\u5e7e\u79d2\u9418\u57f7\u884c\u5de5\u5177\uff0c\u5c31\u80fd\u5b8c\u6210\u9019\u9805\u904e\u7a0b\u3002<\/p>\n

\u7b2c\u4e8c\u500b PoC \u5247\u767c\u4f48\u5728 Pastebin \u4e0a<\/a>\uff0c\u5176\u4ee5 C \u8a9e\u8a00\u5beb\u6210\uff0c\u9644\u6709 17,000 \u500b\u6613\u53d7\u653b\u64ca\u7684 Memcached \u4f3a\u670d\u5668\u6e05\u55ae\u3002\u9019\u500b\u6307\u4ee4\u78bc\u6703\u4f7f\u7528\u6e05\u55ae\u4e0a\u7684\u4f3a\u670d\u5668\uff0c\u91dd\u5c0d\u7279\u5b9a\u76ee\u6a19\u767c\u52d5 DDoS \u653b\u64ca\u3002<\/p>\n

\u4f7f\u7528\u8005\u8a72\u5982\u4f55\u7de9\u89e3\u9019\u985e\u5a01\u8105\uff1f<\/strong><\/p>\n

DDoS \u653b\u64ca\u5229\u7528 Memcached \u4f3a\u670d\u5668\u7684\u6d88\u606f\u50b3\u51fa\u5f8c\uff0c\u5c0b\u6c42\u89e3\u6c7a\u65b9\u6848\u7684\u8a0e\u8ad6\u4e5f\u96a8\u4e4b\u5c55\u958b\u3002\u9664\u4e86\u901a\u7528\u7684 DDoS \u9632\u8b77\u670d\u52d9\u4ee5\u5916\uff0c\u6709\u4f4d\u7814\u7a76\u4eba\u54e1\u63d0\u51fa\u4e00\u7a2e\u91dd\u5c0d Memcached \u4f3a\u670d\u5668\u7684\u7de9\u89e3\u6280\u8853\u3002<\/p>\n

\"memcachedserv\"<\/p>\n

\u9019\u9805\u300c\u92b7\u6bc0\u958b\u95dc (kill switch)<\/a>\u300d\u7684\u6a5f\u5236\u7d93\u6e2c\u8a66\u8b49\u5be6\u5b8c\u5168\u6709\u6548\u3002\u63a1\u53d6\u300c\u5168\u90e8\u6e05\u9664\u300d\u7684\u65b9\u6cd5\uff0c\u53ef\u4f7f\u6613\u53d7\u653b\u64ca\u7684\u4f3a\u670d\u5668\u5feb\u53d6\u5fb9\u5e95\u5931\u6548\uff0c\u9032\u800c\u963b\u6b62 DDoS \u653b\u64ca\u8005\u7684\u60e1\u610f\u916c\u8f09\u3002<\/p>\n

\u8a31\u591a\u7db2\u7ad9\u696d\u4e3b\u96a8\u5f8c\u5c55\u958b\u884c\u52d5\uff0c\u5831\u544a<\/a>\u6307\u51fa\uff0c\u6578\u53f0\u660e\u986f\u6613\u53d7\u653b\u64ca\u7684 Memcached \u4f3a\u670d\u5668\u5728\u9996\u8d77 DDoS \u653b\u64ca\u767c\u751f\u5f8c\u505c\u6b62\u904b\u4f5c\u3002Memcached \u5718\u968a\u4e5f\u8457\u624b\u8655\u7406\u4f3a\u670d\u5668\u6feb\u7528\u7684\u554f\u984c\uff0c\u4e26\u65bc 2 \u6708 28 \u65e5<\/a>\u7684\u5b89\u5168\u7248\u672c\u66f4\u65b0\u4e2d\u767c\u4f48 1.5.6 \u7248\u3002<\/p>\n

\u9664\u4e86\u5c07\u4f3a\u670d\u5668\u66f4\u65b0\u81f3\u6700\u65b0\u7248\u672c\uff0c\u4e26\u4f7f\u7528\u300c\u5168\u90e8\u6e05\u9664\u300d\u7684\u7de9\u89e3\u6280\u8853\u4e4b\u5916\uff0c\u64d4\u5fc3\u906d\u53d7 DDoS \u653b\u64ca\u7684\u4f7f\u7528\u8005\u9084\u53ef\u63a1\u53d6\u4ee5\u4e0b\u56db\u500b\u63aa\u65bd\uff1a<\/p>\n

    \n
  1. \u78ba\u8a8d\u4f3a\u670d\u5668\u662f\u5426\u5fc5\u8981\u958b\u653e\u5916\u90e8\u5b58\u53d6\uff0c\u4e26\u76e1\u91cf\u907f\u514d\u4f7f\u7528\u53ef\u516c\u958b\u5b58\u53d6\u7684\u5de5\u5177\u3002<\/li>\n
  2. \u78ba\u4fdd\u4e0a\u6e38\u4f9b\u61c9\u5546\u4e0d\u53ea\u4e00\u5bb6\uff0c\u5982\u6b64\u5728\u4e3b\u8981\u4f9b\u61c9\u5546\u906d\u5230\u5927\u91cf\u653b\u64ca\u6642\uff0c\u5373\u53ef\u5bb9\u932f\u8f49\u79fb\u81f3\u5176\u4ed6\u9023\u7d50\u3002<\/li>\n
  3. \u78ba\u8a8d\u7db2\u8def\u4f9b\u61c9\u5546\u63a1\u53d6\u9632\u507d\u63aa\u65bd (\u4f8b\u5982 BCP38 \u548c 84)\uff0c\u4ee5\u514d DDoS \u53cd\u5c04\u653b\u64ca\u4f7f\u7528\u9019\u985e\u5047\u5192\u5c01\u5305\u5165\u4fb5\u7db2\u8def\u3002<\/li>\n
  4. \u78ba\u8a8d\u7db2\u8def\u662f\u5426\u6709\u826f\u597d\u7684\u6d41\u91cf\u76e3\u63a7\u529f\u80fd (\u50b3\u5165\u548c\u50b3\u8f38\u6d41\u91cf\u5747\u9700\u8981)\uff0c\u4e26\u4f7f\u7528\u7db2\u8def\u5165\u4fb5\u9632\u8b77\u5de5\u5177<\/a>\uff0c\u4f8b\u5982 \u8da8\u52e2\u79d1\u6280\u7684Deep Discovery Inspector<\/a>\u53ca TippingPoint\u3002\u8da8\u52e2\u79d1\u6280Deep Security<\/a> \u4e5f\u63d0\u4f9b\u591a\u7a2e\u7db2\u8def\u5b89\u5168\u529f\u80fd\uff0c\u5982\u6df1\u5ea6\u5c01\u5305\u6aa2\u6e2c\u3001\u5165\u4fb5\u9632\u79a6 (IPS)\u3001\u4e3b\u6a5f\u9632\u706b\u7246\u7b49\u3002\u5df2\u767c\u4f48\u4e0b\u5217 IPS \u898f\u5247\uff0c\u4ee5\u5229\u4e3b\u52d5\u9632\u7bc4\u4e0a\u8ff0\u5a01\u8105\uff1a\n

    – 1008918-Identified Memcached Amplified Reflected Response
    \n– 1008916-Identified Memcached Reflected UDP Traffic<\/li>\n<\/ol>\n

    DDoS \u653b\u64ca\u5f37\u5ea6\u907d\u589e\uff0c\u5982\u4eca\u96a8\u8457 PoC \u516c\u958b\uff0c\u9810\u8a08\u653b\u64ca\u6703\u8d8a\u4f86\u8d8a\u983b\u7e41\u3002\u7db2\u8def\u7f6a\u72af\u4e5f\u6703\u4e0d\u65b7\u5617\u8a66\u5f37\u5316\u5a01\u8105\uff0c\u4e26\u8a2d\u6cd5\u5f9e\u653b\u64ca\u4e2d\u725f\u5229<\/a>\u3002\u4f7f\u7528\u8005\u5fc5\u9808\u4fdd\u6301\u512a\u52e2\uff0c\u6436\u5148\u884c\u52d5\uff0c\u4fdd\u8b77\u597d\u4f3a\u670d\u5668\u5b89\u5168\uff0c\u9632\u60a3\u65bc\u672a\u7136\u3002<\/p>\n

    \u25ce\u539f\u6587\u4f86\u6e90:PoC Exploits for Memcached DDoS Attacks Published Online<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    \u4e09\u6708\u521d\u767c\u751f\u4e86\u5169\u8d77\u7834\u8a18\u9304\u7684\u5206\u6563\u5f0f\u963b\u65b7\u670d\u52d9 (DDoS) \u4e8b\u4ef6\u3002\u7b2c\u4e00\u8d77\u662f GitHub \u906d\u5230\u53f2\u7121\u524d\u4f8b 1.35 T […]<\/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":[332,1268,2744],"tags":[333,3593,3784,2344],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/54878"}],"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=54878"}],"version-history":[{"count":0,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/54878\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=54878"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=54878"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=54878"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}