{"id":20971,"date":"2024-07-05T10:50:04","date_gmt":"2024-07-05T02:50:04","guid":{"rendered":"https:\/\/aif.amtbbs.org\/?p=20971"},"modified":"2024-07-05T10:52:41","modified_gmt":"2024-07-05T02:52:41","slug":"%e5%88%ab%e8%ae%a9%e9%bb%91%e5%ae%a2%e6%9c%89%e6%9c%ba%e5%8f%af%e4%b9%98%ef%bc%81%e7%ab%8b%e5%8d%b3%e4%ba%86%e8%a7%a3cve-2024-6387%e5%af%b9openssh%e7%9a%84%e5%bd%b1%e5%93%8d%e4%b8%8e%e9%98%b2%e6%8a%a4","status":"publish","type":"post","link":"https:\/\/aif.amtbbs.org\/index.php\/2024\/07\/05\/20971\/","title":{"rendered":"\u522b\u8ba9\u9ed1\u5ba2\u6709\u673a\u53ef\u4e58\uff01\u7acb\u5373\u4e86\u89e3CVE-2024-6387\u5bf9OpenSSH\u7684\u5f71\u54cd\u4e0e\u9632\u62a4\u63aa\u65bd"},"content":{"rendered":"<div><img data-dominant-color=\"779bc7\" data-has-transparency=\"false\" style=\"--dominant-color: #779bc7;\" loading=\"lazy\" decoding=\"async\" class=\"not-transparent alignnone size-full wp-image-20975\" src=\"https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/e17dea14369d5453554598e3df1788da54a001-300x167-1.jpg\" width=\"300\" height=\"167\" alt=\"\" srcset=\"https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/e17dea14369d5453554598e3df1788da54a001-300x167-1.jpg 300w, https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/e17dea14369d5453554598e3df1788da54a001-300x167-1-150x84.jpg 150w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/div>\n<div class=\"article-desc\">CVE-2024-6387\uff08\u53c8\u540d RegreSSHion\uff09\u662f\u57fa\u4e8e glibc \u7684 Linux \u7cfb\u7edf\u4e0a OpenSSH \u670d\u52a1\u5668 \uff08sshd\uff09 \u4e2d\u7684\u4fe1\u53f7\u5904\u7406\u7a0b\u5e8f\u4e89\u7528\u6761\u4ef6\u6f0f\u6d1e\u3002<\/div>\n<div id=\"postspictures\" class=\"article-content\">\n<div id=\"container\" class=\"container am-engine\" data-v-1d7a5742=\"\" data-element=\"root\">\n<h3>\u6982\u8ff0<\/h3>\n<p>CVE-2024-6387\u662f\u4e00\u4e2a\u5f71\u54cdOpenSSH\u7684\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\uff08RCE\uff09\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u5b58\u5728\u4e8eOpenSSH\u670d\u52a1\u5668(sshd)\u7684\u4fe1\u53f7\u5904\u7406\u7a0b\u5e8f\u4e2d\uff0c\u7531\u4e8e\u5728\u5904\u7406SIGALRM\u4fe1\u53f7\u65f6\u7684\u7ade\u4e89\u6761\u4ef6\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u5229\u7528\u8be5\u6f0f\u6d1e\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002\u8be5\u6f0f\u6d1e\u4e3b\u8981\u5f71\u54cd\u57fa\u4e8eglibc\u7684Linux\u7cfb\u7edf\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u53d7\u5f71\u54cd\u7248\u672c8.5p1 &lt;= OpenSSH &lt; 9.8p1<\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s5.51cto.com\/oss\/202407\/05\/f33214943da24662ade704932b397741fd6a98.webp\" data-type=\"block\" \/><\/p>\n<p>\u8be6\u7ec6\u7684\u6f0f\u6d1e\u60c5\u51b5\u8bf7\u67e5\u9605\u8be5\u7bc7\u6587\u7ae0[1]<\/p>\n<h3>\u6f0f\u6d1e\u539f\u7406<\/h3>\n<p>\u5f53\u5ba2\u6237\u7aef\u5728LoginGraceTime\uff08\u9ed8\u8ba4120\u79d2\uff0c\u65e7\u7248\u672c600\u79d2\uff09\u5185\u672a\u80fd\u5b8c\u6210\u8eab\u4efd\u9a8c\u8bc1\u65f6\uff0csshd\u4f1a\u5f02\u6b65\u8c03\u7528SIGALRM\u5904\u7406\u7a0b\u5e8f\u3002\u7531\u4e8e\u4fe1\u53f7\u5904\u7406\u7684\u7ade\u4e89\u6761\u4ef6\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u901a\u8fc7\u7279\u5b9a\u7684\u65f6\u95f4\u7a97\u53e3\u6ce8\u5165\u6076\u610f\u4ee3\u7801\uff0c\u5b9e\u73b0\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u3002<\/p>\n<p>\u88681\u663e\u793a\u4e86\u4e0e CVE-2024-6387 \u5173\u8054\u7684\u6613\u53d7\u653b\u51fb\u7248\u672c\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s2.51cto.com\/oss\/202407\/05\/1471d7345186fcd67e6241c163cf75c63803fc.webp\" data-type=\"block\" \/><\/p>\n<p>\u88681<\/p>\n<h3>\u53d7\u5f71\u54cd\u8303\u56f4<\/h3>\n<p>\u4f7f\u7528Palo Alto Networks Xpanse\u6570\u636e\uff0c\u6211\u4eec\u89c2\u5bdf\u5230 2300 \u4e07\u4e2aOpenSSH\u670d\u52a1\u5668\u5b9e\u4f8b\uff0c\u5305\u62ec\u6240\u6709\u7248\u672c\u3002\u622a\u81f3 2024\u5e747\u6708 1 \u65e5\uff0c\u5168\u7403\u6709\u8d85\u8fc7 700 \u4e07\u4e2a\u66b4\u9732\u7684OpenSSH \u7248\u672c8.5p1-9.7p1\u00a0\u5b9e\u4f8b\u3002\u5305\u62ec\u65e7\u7248\u672c\uff084.3p1 \u53ca\u66f4\u65e9\u7248\u672c\uff09\uff0c\u6211\u4eec\u603b\u5171\u770b\u5230730\u4e07\u3002\u4f46\u662f\uff0c\u8fd9\u53ef\u80fd\u662f\u5bf9\u6613\u53d7\u653b\u51fb\u7248\u672c\u7684\u8fc7\u5ea6\u8ba1\u7b97\uff0c\u56e0\u4e3a\u6ca1\u6709\u53ef\u9760\u7684\u65b9\u6cd5\u6765\u89e3\u91ca\u5411\u540e\u79fb\u690d\uff0c\u5176\u4e2d\u5b9e\u4f8b\u6b63\u5728\u8fd0\u884c\u4fee\u8865\u7248\u672c\u4f46\u663e\u793a\u53d7\u5f71\u54cd\u7684\u7248\u672c\u53f7\u3002\u8fd9\u4e9b\u6570\u5b57\u4e5f\u4e0d\u8003\u8651\u6f0f\u6d1e\u53ef\u80fd\u9700\u8981\u7684\u64cd\u4f5c\u7cfb\u7edf\u7ea7\u89c4\u8303\u6216\u914d\u7f6e\u3002<\/p>\n<p>\u88682\u663e\u793a\u4e86\u6211\u4eec\u5bf9\u6613\u53d7\u653b\u51fb\u7248\u672c8.5p1-9.7p1\u7684\u89c2\u5bdf\u7ed3\u679c\u7684\u5730\u7406\u5206\u5e03\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s8.51cto.com\/oss\/202407\/05\/54cc638518e6c34b31b298880eb0749f6a8142.webp\" data-type=\"block\" \/><\/p>\n<h3>\u6f0f\u6d1e\u590d\u73b0<\/h3>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\">\n<p><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_0\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\">Fofa\uff1aprotocol<span class=\"token operator\">=<\/span><span class=\"token string\">\"ssh\"<\/span>\r\n<span class=\"token literal-property property\">quake\uff1aapp<\/span><span class=\"token operator\">:<\/span><span class=\"token string\">\"OpenSSH\"<\/span>\r\nhunter\uff1aapp<span class=\"token punctuation\">.<\/span>name<span class=\"token operator\">=<\/span><span class=\"token string\">\"OpenSSH\"<\/span><\/code><\/pre>\n<ul id=\"code_id_0\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/s5.51cto.com\/oss\/202407\/05\/e8e7b323650dfa10492120fba9dc0bc71e51ad.webp\" data-type=\"block\" \/><\/p>\n<p>\u8be5\u6f0f\u6d1e\u5728github\u4e0a\uff0c\u5927\u795e\u4e5f\u53d1\u5e03\u4e86poc\uff0c\u5982\u4e0b\u56fe\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s7.51cto.com\/oss\/202407\/05\/f7bfca077f9e046047a541b675cc44eac09c22.webp\" data-type=\"block\" \/><\/p>\n<p>\u4f7f\u7528\u65b9\u6cd5\u4e5f\u662f\u5f88\u7b80\u5355\uff0c\u4e0d\u8fc7\uff0c\u8be5\u6f0f\u6d1e\u653b\u51fb\u65f6\u95f4\u5f88\u957f\uff0c\u5728linux\u865a\u62df\u673a\u73af\u5883\u201c\u5e73\u5747\u9700\u8981\u5c1d\u8bd5\u7ea610,000\u6b21\u624d\u80fd\u6210\u529f\u590d\u73b0\uff0c\u7ea6\u97003\u5c0f\u65f6\u5de6\u53f3\u3002<\/p>\n<p>\u628a\u4e0a\u8ff0\u7684poc\u514b\u9686\u5230kali\u4e3b\u673a\u4e0a\uff0c\u5982\u4e0b\u56fe\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s7.51cto.com\/oss\/202407\/05\/47f6c3115a3f553fd1f176c3700876c8f01705.webp\" data-type=\"block\" \/><\/p>\n<p>\u8be5poc\u91c7\u7528C\u8bed\u8a00\u7f16\u7a0b\uff0c\u6240\u4ee5\uff0c\u6211\u4eec\u9700\u8981\u7f16\u8bd1\u3002\u5982\u4e0b\u56fe\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s4.51cto.com\/oss\/202407\/05\/f8686be976cbd47e3f927281c3656dda872e68.webp\" data-type=\"block\" \/><\/p>\n<p>\u5982\u4f55\u5229\u7528\u8be5poc\uff0c\u6267\u884c\u5982\u4e0b\u547d\u4ee4:<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\">\n<p><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_1\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-javascript\" tabindex=\"0\"><code class=\"language-javascript\"><span class=\"token punctuation\">.<\/span><span class=\"token operator\">\/<\/span>cve<span class=\"token operator\">-<\/span><span class=\"token number\">2024<\/span><span class=\"token operator\">-<\/span><span class=\"token number\">6387<\/span> <span class=\"token operator\">&lt;<\/span>ip<span class=\"token operator\">&gt;<\/span> <span class=\"token operator\">&lt;<\/span>port<span class=\"token operator\">&gt;<\/span>\r\n\u4f8b\u5982\uff1a\r\n<span class=\"token punctuation\">.<\/span><span class=\"token operator\">\/<\/span>cve<span class=\"token operator\">-<\/span><span class=\"token number\">2024<\/span><span class=\"token operator\">-<\/span><span class=\"token number\">6387<\/span> <span class=\"token number\">192.168<\/span><span class=\"token number\">.31<\/span><span class=\"token number\">.19<\/span> <span class=\"token number\">22<\/span><\/code><\/pre>\n<ul id=\"code_id_1\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u6267\u884c\u5b8c\u547d\u4ee4\u540e\uff0c\u5982\u4e0b\u56fe\u7684\u8f93\u51fa\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/s8.51cto.com\/oss\/202407\/05\/468092f39f8bcca7eac8536d93f41b9f7144be.webp\" data-type=\"block\" \/><\/p>\n<h3>\u4fee\u8865\u65b9\u6848<\/h3>\n<h4>1.\u5347\u7ea7 OpenSSH \u5230\u6700\u65b0\u7248\u672c<\/h4>\n<p>\u8981\u6709\u6548\u89e3\u51b3\u6b64\u6f0f\u6d1e\uff0c\u8bf7\u5347\u7ea7\u5230\u6700\u65b0\u7684 OpenSSH \u7248\u672c\uff0c\u5176\u4e2d\u5305\u62ec\u5fc5\u8981\u7684\u4fee\u590d\u7a0b\u5e8f\u3002\u4fdd\u6301 OpenSSH \u5b89\u88c5\u6700\u65b0\u5bf9\u4e8e\u5b89\u5168\u548c\u9632\u8303\u5df2\u77e5\u6f0f\u6d1e\u81f3\u5173\u91cd\u8981\u3002\u5b98\u65b9\u5df2\u53d1\u5e03\u6700\u65b0\u7248\u672c\u4fee\u590d\u8be5\u6f0f\u6d1e\uff0c\u8bf7\u53d7\u5f71\u54cd\u5ba2\u6237\u5c06Openssh\u66f4\u65b0\u5230\u5b89\u5168\u7248\u672c\uff1aOpenSSH &gt; 9.8p1\u3002<\/p>\n<ul data-id=\"u738a58b-KWKZBa6U\">\n<li data-id=\"ld70c578-LGokV53G\">\u4e0b\u8f7d\u94fe\u63a5\uff1ahttps:\/\/www.openssh.com\/releasenotes.html<\/li>\n<li data-id=\"ld70c578-IGrhOoHe\">Debian\u89e3\u51b3\u65b9\u6848\uff1ahttps:\/\/security-tracker.debian.org\/tracker\/CVE-2024-6387<\/li>\n<li data-id=\"ld70c578-ZBYyByo2\">Ubuntu\u89e3\u51b3\u65b9\u6848\uff1ahttps:\/\/ubuntu.com\/security\/notices\/USN-6859-1<\/li>\n<li data-id=\"ld70c578-vlFA5YuE\">Redhat\u89e3\u51b3\u65b9\u6848\uff1ahttps:\/\/access.redhat.com\/security\/cve\/cve-2024-6387<\/li>\n<\/ul>\n<h4>2.\u5b9e\u65bd\u4e34\u65f6\u89e3\u51b3\u65b9\u6cd5<\/h4>\n<p>\u5982\u679c\u65e0\u6cd5\u7acb\u5373\u5347\u7ea7\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7\u5728 OpenSSH \u914d\u7f6e\u6587\u4ef6\u4e2d\u5c06 LoginGraceTime \u53c2\u6570\u8bbe\u7f6e\u4e3a 0 \u6765\u964d\u4f4e\u98ce\u9669\u3002\u8fd9\u6837\u53ef\u4ee5\u9632\u6b62\u672a\u7ecf\u8eab\u4efd\u9a8c\u8bc1\u7684\u4f1a\u8bdd\u4fdd\u6301\u6253\u5f00\u72b6\u6001\u5e76\u88ab\u5229\u7528\u3002\u4f46\u662f\uff0c\u5982\u679c\u6240\u6709\u8fde\u63a5\u63d2\u69fd\u90fd\u88ab\u5360\u7528\uff0c\u6b64\u8bbe\u7f6e\u53ef\u80fd\u4f1a\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002<\/p>\n<h4>3.\u901a\u8fc7\u4f7f\u7528seccomp\uff08\u5b89\u5168\u8ba1\u7b97\u6a21\u5f0f\uff09<\/h4>\n<p>\u6dfb\u52a0\u989d\u5916\u7684\u5b89\u5168\u5c42\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u51cf\u8f7b\u98ce\u9669\u3002seccomp\u9650\u5236\u4e86sshd\u8fdb\u7a0b\u53ef\u4ee5\u6267\u884c\u7684\u7cfb\u7edf\u8c03\u7528\uff0c\u4ece\u800c\u9650\u5236\u4e86\u653b\u51fb\u9762\u5e76\u51cf\u5c11\u4e86\u5229\u7528\u4e0d\u5b89\u5168\u51fd\u6570\uff08\u5982syslog()\uff09\u7684\u53ef\u80fd\u6027\u3002\u5b9e\u73b0seccomp\u786e\u4fdd\u5373\u4f7f\u89e6\u53d1\u4e86\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u6267\u884c\u4efb\u610f\u4ee3\u7801\u7684\u80fd\u529b\u4e5f\u4f1a\u663e\u8457\u53d7\u9650\u3002\u901a\u8fc7\u9075\u5faa\u8fd9\u4e9b\u7f13\u89e3\u7b56\u7565\uff0c\u60a8\u53ef\u4ee5\u4fdd\u62a4\u7cfb\u7edf\u514d\u53d7\u6b64\u6f0f\u6d1e\u7684\u5f71\u54cd\uff0c\u5e76\u589e\u5f3aOpenSSH\u914d\u7f6e\u7684\u6574\u4f53\u5b89\u5168\u6027\u3002<\/p>\n<h3>\u7ed3\u8bba<\/h3>\n<p>CVE-2024-6387\uff08\u53c8\u540d RegreSSHion\uff09\u662f\u57fa\u4e8e glibc \u7684 Linux \u7cfb\u7edf\u4e0a OpenSSH \u670d\u52a1\u5668 \uff08sshd\uff09 \u4e2d\u7684\u4fe1\u53f7\u5904\u7406\u7a0b\u5e8f\u4e89\u7528\u6761\u4ef6\u6f0f\u6d1e\u3002\u6b64\u6f0f\u6d1e\u7684\u4e25\u91cd\u7b49\u7ea7\u4e3a\u201c\u9ad8\u201d\uff08CVSS 8.1\uff09\uff0c\u5e76\u53ef\u80fd\u5bfc\u81f4\u5177\u6709 root \u6743\u9650\u7684\u672a\u7ecf\u8eab\u4efd\u9a8c\u8bc1\u7684\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c \uff08RCE\uff09\u3002<\/p>\n<p>Reference\uff1a<\/p>\n<p>[1]CVE-2024-6387:\u00a0https:\/\/nvd.nist.gov\/vuln\/detail\/CVE-2024-6387<\/p>\n<\/div>\n<\/div>\n<div class=\"pvc_clear\"><\/div>\n<p id=\"pvc_stats_20971\" class=\"pvc_stats total_only  \" data-element-id=\"20971\" style=\"\"><i class=\"pvc-stats-icon medium\" aria-hidden=\"true\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" version=\"1.0\" viewBox=\"0 0 502 315\" preserveAspectRatio=\"xMidYMid meet\"><g transform=\"translate(0,332) scale(0.1,-0.1)\" fill=\"\" stroke=\"none\"><path 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