{"id":1562,"date":"2021-12-14T14:22:10","date_gmt":"2021-12-14T06:22:10","guid":{"rendered":"https:\/\/blog.billows.com.tw\/?p=1562"},"modified":"2021-12-14T14:29:37","modified_gmt":"2021-12-14T06:29:37","slug":"%e6%97%a5%e8%aa%8c%e6%a1%86%e6%9e%b6log4j%e8%a2%ab%e6%9b%9d%e6%a0%b8%e5%bd%88%e7%b4%9a%e6%bc%8f%e6%b4%9e%ef%bc%8c%e5%b7%b2%e5%87%ba%e7%8f%be%e6%94%bb%e6%93%8a%e8%a1%8c%e5%8b%95%ef%bc%8c%e6%b3%a2","status":"publish","type":"post","link":"https:\/\/blog.billows.com.tw\/?p=1562","title":{"rendered":"\u65e5\u8a8c\u6846\u67b6Log4j\u88ab\u66dd\u6838\u5f48\u7d1a\u6f0f\u6d1e\uff0c\u5df2\u51fa\u73fe\u653b\u64ca\u884c\u52d5\uff0c\u6ce2\u53ca\u7bc4\u570d\u5ee3\u6cdb\uff0c\u9700\u5118\u901f\u63a1\u53d6\u7de9\u89e3\u63aa\u65bd"},"content":{"rendered":"\n<p>\u4e0a\u5468\u672b\uff0c\u88ab\u5168\u7403\u4f01\u696d\u3001\u7d44\u7e54\u61c9\u7528\u5230\u4e0d\u540c\u7db2\u8def\u670d\u52d9\u7684\u65e5\u8a8c\u6846\u67b6Apache Log4j\u66dd\u51fa\u4e00\u500b\u91cd\u5927\u98a8\u96aa\u6f0f\u6d1e\uff0c\u540d\u70baLog4Shell( CVE-2021-44228)\uff0c\u5f71\u97ff\u5305\u62ecApple iCloud\u3001Steam\u3001Minecraft\u3001Amazon\u3001Twitter\u3001Minecraft\u3001Cloudflare\u3001ElasticSearch\u3001Red Hat\u3001Twitter\u3001\u767e\u5ea6\u3001\u9a30\u8a0a\u7b49\u79d1\u6280\u516c\u53f8\u548c\u5927\u578b\u7db2\u7ad9\uff0cApache Log4j\u662f\u4e00\u500b\u57fa\u65bcJava\u7684\u7d00\u9304\u6a94\u8a18\u9304\u5de5\u5177\uff0c\u4fdd\u5b58\u57f7\u884c\u6d3b\u52d5\u7684\u904e\u7a0b\uff0c\u65b9\u4fbf\u5728\u51fa\u73fe\u554f\u984c\u6642\u9032\u884c\u6aa2\u67e5\u3002\u5e7e\u4e4e\u6bcf\u500b\u7db2\u8def\u5b89\u5168\u7cfb\u7d71\u90fd\u6703\u5229\u7528\u67d0\u7a2e\u65e5\u8a8c\u6846\u67b6\u9032\u884c\u7d00\u9304\uff0c\u4f7f\u5f97Log4j\u9019\u985e\u53d7\u6b61\u8fce\u7684\u65e5\u8a8c\u6846\u67b6\u5f71\u97ff\u5ee3\u6cdb\u3002\u64da\u4e86\u89e3\uff0c\u653b\u64ca\u8005\u53ea\u9700\u50b3\u9001\u4e00\u5247\u7279\u6b8a\u7684\u8a0a\u606f\u5230\u4f3a\u670d\u5668\uff08\u542b$\u7684\u5b57\u4e32\uff09\u5c31\u80fd\u89f8\u767c\u6f0f\u6d1e\uff0c\u9060\u7aef\u57f7\u884c\u4efb\u610f\u7a0b\u5f0f\u78bc\u4f86\u63a7\u5236\u76ee\u6a19\u4f3a\u670d\u5668\uff0c\u5df2\u51fa\u73fe\u653b\u64ca\u884c\u52d5\u7684\u60c5\u6cc1\uff0c\u6f0f\u6d1e\u6ce2\u53ca\u9762\u548c\u5371\u5bb3\u7a0b\u5ea6\u5747\u582a\u6bd42017\u5e74\u7684\u6c38\u6046\u4e4b\u85cd(Eternal blue)\u6f0f\u6d1e\uff0cApache\u8edf\u9ad4\u57fa\u91d1\u6703\u4e5f\u5c07Log4j\u6f0f\u6d1e\u7684\u56b4\u91cd\u7a0b\u5ea6\uff0c\u8a55\u70ba\u6700\u9ad8\u768410\u5206\uff0c\u4efb\u4f55\u4eba\u90fd\u53ef\u4ee5\u5f9e\u5b58\u5728\u8a72\u6f0f\u6d1e\u7684\u670d\u52d9\u7372\u5f97\u96fb\u8166\u7684\u5b8c\u6574\u5b58\u53d6\u6b0a\u9650\u3002<\/p>\n\n\n\n<p>\u4e8b\u4ef6\u6642\u9593\u8ef8\uff1a<\/p>\n\n\n\n<p>11\u670824\u65e5\uff0c\u958b\u6e90\u65e5\u8a8c\u8cc7\u6599\u5eabLog4j\u7684\u4e00\u500b\u9060\u7aef\u7a0b\u5f0f\u78bc\u57f7\u884c\uff08remote code execution\uff0cRCE\uff09\u6f0f\u6d1eCVE-2021-44228\u88ab\u63d0\u4ea4\u3002<\/p>\n\n\n\n<p>12\u67087\u65e5\u4e0a\u5348\uff0cApache\u91cb\u51fa\u4e862.15.0-rc1\u7248\u672c\u66f4\u65b0\u3002<\/p>\n\n\n\n<p>12\u67089\u65e5\u665a\uff0c\u6f0f\u6d1e\u7684\u5229\u7528\u7d30\u7bc0\u88ab\u516c\u958b\uff0c\u5f71\u97ff\u7bc4\u570d\u5e7e\u4e4e\u6a6b\u8de8Log4j\u6574\u500b\u7248\u672c\uff08\u5f9e2.0\u52302.14.1-rc1\uff09\u3002<\/p>\n\n\n\n<p>\u7576\u5927\u5bb6\u7d1b\u7d1b\u5347\u7d1a\u52302.15.0-rc1\u4e4b\u5f8c\u767c\u73fe\uff0c\u8a72\u4fee\u88dc\u4f9d\u7136\u53ef\u4ee5\u88ab\u653b\u64ca\u8005\u7e5e\u904e\u3002<\/p>\n\n\n\n<p>12\u670810\u65e5\u51cc\u6668\uff0cApache Log4j2\u7dca\u6025\u66f4\u65b0\u4e862.15.0-rc2\u7248\u672c\u3002<\/p>\n\n\n\n<p>\u806f\u90a6\u7db2\u8def\u5b89\u5168\u548c\u57fa\u790e\u8a2d\u65bd\u5b89\u5168\u5c40 (CISA) \u4e3b\u4efb <a href=\"https:\/\/www.cisa.gov\/news\/2021\/12\/11\/statement-cisa-director-easterly-log4j-vulnerability\">Jen Easterly<\/a> \u5728\u4e00\u4efd\u8072\u660e\u4e2d\u8868\u793a\uff1a\u9019\u4e00\u6f0f\u6d1e\u6b63\u88ab\u8d8a\u4f86\u8d8a\u591a\u7684\u653b\u64ca\u8005\u5ee3\u6cdb\u5229\u7528\uff0c\u9451\u65bc\u5176\u5ee3\u6cdb\u4f7f\u7528\uff0c\u5c0d\u7db2<\/p>\n\n\n\n<p>\u8def\u9632\u79a6\u8005\u63d0\u51fa\u4e86\u7dca\u8feb\u6311\u6230\u3002\u8a72\u6f0f\u6d1e\u5df2\u7d93\u5f71\u97ff\u5230 Apache Log4j \u7684 2.0 \u5230 2.14.1 \u7248\u672c\uff0c\u5efa\u8b70\u7d44\u7e54\u76e1\u5feb\u66f4\u65b0\u5230 2.15.0 \u7248\u672c\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"865\" height=\"979\" src=\"https:\/\/blog.billows.com.tw\/wp-content\/uploads\/2021\/12\/image-8.png\" alt=\"\" class=\"wp-image-1563\" srcset=\"https:\/\/blog.billows.com.tw\/wp-content\/uploads\/2021\/12\/image-8.png 865w, https:\/\/blog.billows.com.tw\/wp-content\/uploads\/2021\/12\/image-8-265x300.png 265w, https:\/\/blog.billows.com.tw\/wp-content\/uploads\/2021\/12\/image-8-768x869.png 768w\" sizes=\"auto, (max-width: 865px) 100vw, 865px\" \/><\/figure>\n\n\n\n<p>Photo Credit : GovCert.ch<\/p>\n\n\n\n<p>Log4Shell \u6f0f\u6d1e\u51fa\u65bc Log4j \u88e1\u6709\u4e00\u500bJNDI Lookup \u529f\u80fd\uff0c\u5b83\u662f\u7528\u4f86\u5728\u57f7\u884c\u968e\u6bb5\u5c0d\u65e5\u8a8c\u4e2d\u7684\u6587\u5b57\u7d00\u9304\u9032\u884c\u52a0\u5de5\u5f8c\u8f38\u51fa\uff0c\u9019\u672c\u4f86\u5728\u5206\u6790\u7cfb\u7d71\u554f\u984c\u6642\u5f88\u6709\u7528\uff0c\u4e0d\u904e\u540c\u6642\u4e5f\u53ef\u4ee5\u8b93\u653b\u64ca\u8005\u6709\u6a5f\u53ef\u4e58\uff0c\u4f8b\u5982\u523b\u610f\u8f38\u5165\u4e0b\u8f09\u8edf\u9ad4\u4f86\u57f7\u884c\u7684\u6587\u5b57\u8b93\u65e5\u8a8c\u8a18\u9304\u4e0b\u4f86\uff0c\u5c31\u53ef\u4ee5\u9060\u7aef\u57f7\u884c\u4efb\u610f\u7a0b\u5f0f\u78bc\u3002\u53d7\u5f71\u97ff\u7684 Log4j \u7248\u672c\u7531 2.0 \u2013 2.14 \uff0c\u96d6\u7136\u7248\u672c 1.0 \u4e5f\u53d7\u5f71\u97ff\uff0c\u4e0d\u904e\u7531\u65bc\u7248\u672c 1.0 \u6c92\u6709\u300c JNDI Lookup \u300d\u529f\u80fd\uff0c\u6240\u4ee5\u5c31\u7121\u6cd5\u57f7\u884c\u60e1\u610f\u7a0b\u5f0f\u78bc\u3002\u6545\u8cc7\u5b89\u516c\u53f8<a href=\"https:\/\/www.bleepingcomputer.com\/news\/security\/researchers-release-vaccine-for-critical-log4shell-vulnerability\/\">Cybereason<\/a>\u8a8d\u70ba\u53ea\u8981\u95dc\u6389\u300c JNDI Lookup \u300d\u529f\u80fd\uff0c\u5c31\u53ef\u7de9\u89e3\u6f0f\u6d1e\u7684\u5f71\u97ff\uff0c\u4e26\u63a8\u51fa\u540d\u70ba<a href=\"https:\/\/github.com\/Cybereason\/Logout4Shell\">Logout4Shell<\/a>\u7684\u75ab\u82d7\u7a0b\u5f0f\u3002\u5b83\u7684\u539f\u7406\u5c31\u662f\u5229\u7528\u300c Log4Shell \u300d\u6f0f\u6d1e\u6ce8\u5165\u7a0b\u5f0f\u53bb\u4fee\u6539 Log4j \u7684\u8a2d\u5b9a\uff0c\u95dc\u9589\u300c JNDI Lookup \u300d\u529f\u80fd\u3002<\/p>\n\n\n\n<p>Cyber\u200b\u200beason \u806f\u5408\u5275\u8fa6\u4eba\u517c\u9996\u5e2d\u6280\u8853\u5b98 Yonatan Striem-Amit \u8868\u793a\uff0c\u96d6\u7136\u66f4\u65b0\u5230\u6700\u65b0\u7248\u672c\u7684 Log4j \u7121\u7591\u662f\u6700\u597d\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u4f46\u4fee\u88dc\u901a\u5e38\u5f88\u8907\u96dc\uff0c\u9700\u8981\u4e00\u500b\u767c\u5e03\u9031\u671f\u548c\u6e2c\u8a66\u9031\u671f\u3002\u8a31\u591a\u516c\u53f8\u767c\u73fe\u5f88\u96e3\u53bb\u90e8\u7f72\u7dca\u6025\u4fee\u88dc\uff0c\u6545Logout4Shell\u201c\u75ab\u82d7\u201d\u672c\u8cea\u4e0a\u70ba\u5b89\u5168\u5718\u968a\u722d\u53d6\u4e86\u4e00\u4e9b\u6642\u9593\uff0c\u56e0\u70ba\u4ed6\u5011\u6b63\u5728\u52aa\u529b\u63a8\u51fa\u4fee\u88dc\u3002\u4ed6\u8aaa\uff0c\u8a72\u4fee\u88dc\u7a0b\u5f0f\u7981\u7528\u4e86\u8a72\u6f0f\u6d1e\uff0c\u4e26\u5141\u8a31\u7d44\u7e54\u5728\u66f4\u65b0\u4f3a\u670d\u5668\u6642\u4fdd\u6301\u53d7\u5230\u4fdd\u8b77\u3002<\/p>\n\n\n\n<p>\u6709\u95dcLog4j\u6f0f\u6d1e\u7684IOCs:<\/p>\n\n\n\n<p>Hostname: log.exposedbotnets.ru<\/p>\n\n\n\n<p>URL: <a href=\"http:\/\/62.210.130.250:80\/web\/admin\/x86_g\">http:\/\/62.210.130.250:80\/web\/admin\/x86_g<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/62.210.130.250\/lh.sh\">http:\/\/62.210.130.250\/lh.sh<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/45.130.229.168:9999\/Exploit.class\">http:\/\/45.130.229.168:9999\/Exploit.class<\/a><\/p>\n\n\n\n<p>http:\/\/62.210.130.250:80\/web\/admin\/x86<\/p>\n\n\n\n<p>IPv4:<\/p>\n\n\n\n<p>159.89.182.117<\/p>\n\n\n\n<p>45.130.229.168<\/p>\n\n\n\n<p>210.141.105.67<\/p>\n\n\n\n<p>MD5:<\/p>\n\n\n\n<p>d4cf8e4ab26f7fd15ef7df9f7937493d<\/p>\n\n\n\n<p>f6e51ea341570c6e9e4c97aee082822b<\/p>\n\n\n\n<p>ceb9a55eaa71101f86b14c6b296066c9<\/p>\n\n\n\n<p>c717c47941c150f867ce6a62ed0d2d35<\/p>\n\n\n\n<p>1718956642fbd382e9cde0c6034f0e21<\/p>\n\n\n\n<p>Domain:<\/p>\n\n\n\n<p>nazi.uy<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e0a\u5468\u672b\uff0c\u88ab\u5168\u7403\u4f01\u696d\u3001\u7d44\u7e54\u61c9\u7528\u5230\u4e0d\u540c\u7db2\u8def\u670d\u52d9\u7684\u65e5\u8a8c\u6846\u67b6Apache Log4j\u66dd\u51fa\u4e00\u500b\u91cd\u5927\u98a8\u96aa\u6f0f\u6d1e\uff0c\u540d\u70baLog4 <a class=\"read-more\" href=\"https:\/\/blog.billows.com.tw\/?p=1562\">READ MORE<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[174],"class_list":["post-1562","post","type-post","status-publish","format-standard","hentry","category-6","tag-news"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/1562","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1562"}],"version-history":[{"count":1,"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/1562\/revisions"}],"predecessor-version":[{"id":1564,"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/1562\/revisions\/1564"}],"wp:attachment":[{"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1562"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1562"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1562"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}