{"id":123415,"date":"2024-07-02T11:35:34","date_gmt":"2024-07-02T02:35:34","guid":{"rendered":"https:\/\/softantenna.com\/blog\/?p=123415"},"modified":"2024-07-02T11:42:42","modified_gmt":"2024-07-02T02:42:42","slug":"openssh-regre-sshion","status":"publish","type":"post","link":"https:\/\/softantenna.com\/blog\/openssh-regre-sshion\/","title":{"rendered":"OpenSSH\u306e\u30e4\u30d0\u30a4\u8106\u5f31\u6027\u300cregreSSHion\u300d\u304c\u767a\u898b\u3055\u308c\u308b\u3002\u30ea\u30e2\u30fc\u30c8\u304b\u3089\u8a8d\u8a3c\u306a\u3057\u306e\u30b3\u30fc\u30c9\u5b9f\u884c\u304c\u53ef\u80fd"},"content":{"rendered":"<p><img decoding=\"async\" style=\"display:block; margin-left:auto; margin-right:auto;\" src=\"https:\/\/softantenna.com\/blog\/wp-content\/uploads\/2024\/07\/Q-regreSSHion-1200x628-1-1070x560-1.jpg\" alt=\"Q regreSSHion 1200x628 1 1070x560\" title=\"Q-regreSSHion-1200x628-1-1070x560.jpg\" border=\"0\" width=\"1070\" height=\"560\" \/><\/p>\n<p>Qualys Threat Research Unit(TRU)\u306f7\u67081\u65e5(\u73fe\u5730\u6642\u9593)\u3001glibc\u30d9\u30fc\u30b9\u306eLinux\u30b7\u30b9\u30c6\u30e0\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u308bOpenSSH\u30b5\u30fc\u30d0\u30fc(sshd)\u306b\u3001\u30ea\u30e2\u30fc\u30c8\u304b\u3089\u8a8d\u8a3c\u306a\u3057\u3067\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3067\u304d\u308b(RCE)\u8106\u5f31\u6027\u300cregreSSHion(<a href=\"https:\/\/www.qualys.com\/2024\/07\/01\/cve-2024-6387\/regresshion.txt\">CVE-2024-6387<\/a>)\u300d\u3092\u767a\u898b\u3057\u305f\u3053\u3068\u3092<a href=\"https:\/\/blog.qualys.com\/vulnerabilities-threat-research\/2024\/07\/01\/regresshion-remote-unauthenticated-code-execution-vulnerability-in-openssh-server\">\u767a\u8868<\/a>\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u8106\u5f31\u6027\u306fOpenSSH\u30b5\u30fc\u30d0\u30fc\u306e\u30b7\u30b0\u30ca\u30eb\u30cf\u30f3\u30c9\u30e9\u306e\u7af6\u5408\u72b6\u614b\u304c\u539f\u56e0\u3067\u3001glibc\u30d9\u30fc\u30b9\u306eLinux\u30b7\u30b9\u30c6\u30e0\u3067\u3001\u8a8d\u8a3c\u3055\u308c\u3066\u3044\u306a\u3044\u72b6\u614b\u3067root\u3068\u3057\u3066\u30ea\u30e2\u30fc\u30c8\u30b3\u30fc\u30c9\u5b9f\u884c(RCE)\u3092\u8a31\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u7af6\u5408\u72b6\u614b\u306f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u8a2d\u5b9a\u306esshd\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002<\/p>\n<p>\u4eca\u56de\u767a\u898b\u3055\u308c\u305f\u8106\u5f31\u6027\u306f2006\u5e74\u306b\u5831\u544a\u3055\u308c\u3001\u4e00\u5ea6\u30d1\u30c3\u30c1\u304c\u9069\u7528\u3055\u308c\u305f\u8106\u5f31\u6027CVE-2006-5051\u306e\u30ea\u30b0\u30ec\u30c3\u30b7\u30e7\u30f3\u3067\u3042\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3055\u308c\u3066\u3044\u307e\u3059(\u30ea\u30b0\u30ec\u30c3\u30b7\u30e7\u30f3\u3068\u306f\u4e00\u65e6\u4fee\u6b63\u3055\u308c\u305f\u6b20\u9665\u304c\u3001\u305d\u306e\u5f8c\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30ea\u30ea\u30fc\u30b9\u3067\u518d\u3073\u73fe\u308c\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u3066\u3044\u307e\u3059)\u3002<\/p>\n<p>\u5f71\u97ff\u3092\u53d7\u3051\u308bOpenSSH\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<ul>\n<li>OpenSSH 4.4p1\u3088\u308a\u524d\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306f\u3001CVE-2006-5051\u304a\u3088\u3073CVE-2008-4109\u306e\u30d1\u30c3\u30c1\u3092\u5f53\u3066\u306a\u3044\u9650\u308a\u8106\u5f31\u6027\u304c\u5f71\u97ff\u3059\u308b\u3002<\/li>\n<li>OpenSSH 4.4p1\u304b\u30898.5p1\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306f\u3001CVE-2006-5051\u5bfe\u3059\u308b\u30d1\u30c3\u30c1\u306b\u3088\u3063\u3066\u3001\u4ee5\u524d\u306f\u5b89\u5168\u3067\u306a\u304b\u3063\u305f\u95a2\u6570\u304c\u5b89\u5168\u306b\u306a\u3063\u3066\u3044\u308b\u305f\u3081\u8106\u5f31\u6027\u306f\u5b58\u5728\u3057\u306a\u3044\u3002<\/li>\n<li>OpenSSH 8.5p1\u4ee5\u964d\u306e\u30d0\u30fc\u30b8\u30e7\u30f3(\u305f\u3060\u30579.8p1\u3092\u542b\u307e\u306a\u3044)\u306f\u95a2\u6570\u4e2d\u306e\u91cd\u8981\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u5076\u767a\u7684\u306b\u524a\u9664\u3055\u308c\u305f\u305f\u3081\u306b\u8106\u5f31\u6027\u306e\u5f71\u97ff\u3092\u3046\u3051\u308b\u3002<\/li>\n<\/ul>\n<p>\u306a\u304aOpenBSD\u306f2001\u5e74\u306b\u3053\u306e\u8106\u5f31\u6027\u3092\u9632\u3050\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u958b\u767a\u3057\u3066\u3044\u308b\u305f\u3081\u30d0\u30b0\u306e\u5f71\u97ff\u3092\u53d7\u3051M\u30eb\uff4b\u3068\u304a\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>regreSSHion\u306e\u8106\u5f31\u6027\u304c\u60aa\u7528\u3055\u308c\u305f\u5834\u5408\u3001\u653b\u6483\u8005\u306f\u6700\u9ad8\u6a29\u9650\u3067\u4efb\u610f\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u5b8c\u5168\u306a\u4e57\u3063\u53d6\u308a\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3001\u30c7\u30fc\u30bf\u64cd\u4f5c\u3001\u6c38\u7d9a\u7684\u306a\u30a2\u30af\u30bb\u30b9\u306e\u305f\u3081\u306e\u30d0\u30c3\u30af\u30c9\u30a2\u306e\u4f5c\u6210\u306a\u3069\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u30eb\u30fc\u30c8\u30a2\u30af\u30bb\u30b9\u3092\u5f97\u308b\u3053\u3068\u3067\u3001\u653b\u6483\u8005\u306f\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3001\u4fb5\u5165\u691c\u77e5\u30b7\u30b9\u30c6\u30e0\u3001\u30ed\u30ae\u30f3\u30b0\u30fb\u30e1\u30ab\u30cb\u30ba\u30e0\u306a\u3069\u306e\u91cd\u8981\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30fb\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u30d0\u30a4\u30d1\u30b9\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u3001\u6a5f\u5bc6\u60c5\u5831\u3084\u5360\u6709\u60c5\u5831\u3092\u542b\u3080\u3001\u91cd\u8981\u30c7\u30fc\u30bf\u306b\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u3068\u306a\u308a\u3001\u30c7\u30fc\u30bf\u306e\u6f0f\u6d29\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u8106\u5f31\u6027\u306f\u300cOpenSSH 9.8\/9.8p1\u300d\u3067\u4fee\u6b63\u3055\u308c\u3066\u304a\u308a\u3001Linux\u30b5\u30fc\u30d0\u30fc\u3067OpenSSH\u30b5\u30fc\u30d0\u30fc\u52d5\u304b\u3057\u3066\u3044\u308b\u7ba1\u7406\u8005\u306f\u3067\u304d\u308b\u3060\u3051\u65e9\u671f\u306b\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3059\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u306a\u304aOpenSSH\u304c\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3067\u304d\u306a\u3044\u5834\u5408\u306f\/etc\/ssh\/sshd_config\u3092\u7de8\u96c6\u3057\u3001LoginGraceTime\u30920\u306b\u3059\u308b\u3053\u3068\u3067\u554f\u984c\u3092\u56de\u907f\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u8a2d\u5b9a\u306b\u3088\u308asshd\u304c\u30b5\u30fc\u30d3\u30b9\u62d2\u5426\u306b\u3055\u3089\u3055\u308c\u308b\u5371\u967a\u304c\u3042\u308b\u3082\u306e\u306e\u306e\u3001\u30ea\u30e2\u30fc\u30c8\u30b3\u30fc\u30c9\u5b9f\u884c\u306f\u56de\u907f\u3067\u304d\u308b\u3068\u306e\u3053\u3068\u3002<\/p>\n<p>\/etc\/ssh\/sshd_config\u3092\u7de8\u96c6:<\/p>\n<pre>\nLoginGraceTime 0\n<\/pre>\n<p>\u3053\u306e\u3042\u3068\u30c7\u30fc\u30e2\u30f3\u3092\u518d\u8d77\u52d5\u3057\u307e\u3059\u3002<\/p>\n<pre>\nsystemctl restart sshd.service\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Qualys Threat Research Unit(TRU)\u306f7\u67081\u65e5(\u73fe\u5730\u6642\u9593)\u3001glibc\u30d9\u30fc\u30b9\u306eLinux\u30b7\u30b9\u30c6\u30e0\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u308bOpenSSH\u30b5\u30fc\u30d0\u30fc(sshd)\u306b\u3001\u30ea\u30e2\u30fc\u30c8\u304b\u3089\u8a8d\u8a3c\u306a\u3057\u3067\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3067\u304d\u308b( [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":123416,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[75],"tags":[3398],"class_list":["post-123415","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-software","tag-openssh"],"_links":{"self":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/123415","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/comments?post=123415"}],"version-history":[{"count":0,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/123415\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media\/123416"}],"wp:attachment":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media?parent=123415"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/categories?post=123415"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/tags?post=123415"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}