{"id":2393,"date":"2026-09-09T11:36:32","date_gmt":"2026-09-09T03:36:32","guid":{"rendered":"https:\/\/shr1mp.top\/?p=2393"},"modified":"2026-09-09T11:37:20","modified_gmt":"2026-09-09T03:37:20","slug":"cve-2025-24813","status":"publish","type":"post","link":"https:\/\/shr1mp.top\/index.php\/2026\/09\/09\/cve-2025-24813\/","title":{"rendered":"\u3010\u6625\u79cb\u4e91\u5883\u3011CVE-2025-24813"},"content":{"rendered":"\n
\n

\u63cf\u8ff0\uff1aApache Tomcat \u662f\u4e00\u4e2a\u5e7f\u6cdb\u4f7f\u7528\u7684\u5f00\u6e90Java Servlet\u3001JavaServer Pages\u3001Java Expression Language\u548cWebSocket\u6280\u672f\u7684\u5b9e\u73b0\u3002\u5728 Tomcat \u7248\u672c 9.x ~ 9.0.97\uff0c10.x ~ 10.1.34, 11.x ~ 11.0.2 \u4e2d\uff0c\u5f53 Tomcat \u540c\u65f6\u914d\u7f6e\u4e86\u53ef\u5199\u7684 DefaultServlet\uff08readonly=false\uff09\u548c\u57fa\u4e8e\u6587\u4ef6\u7684\u4f1a\u8bdd\u6301\u4e45\u5316\u65f6\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u5411\u670d\u52a1\u5668\u5199\u5165\u4efb\u610f\u6587\u4ef6\uff0c\u5e76\u901a\u8fc7\u64cd\u4f5c JSESSIONID cookie \u89e6\u53d1\u8fd9\u4e9b\u6587\u4ef6\u7684\u53cd\u5e8f\u5217\u5316\uff0c\u6700\u7ec8\u5bfc\u81f4\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u3002<\/p>\n<\/blockquote>\n\n\n\n

Tomcat\u94fe\u8def<\/h2>\n\n\n\n

Tomcat \u63a5\u6536\u5230 HTTP \u8bf7\u6c42\u5f00\u59cb\u94fe\u8def\u5982\u4e0b\uff1a<\/p>\n\n\n\n

\n
\"\"<\/div><\/figure>\n<\/blockquote>\n\n\n\n
\u7ec4\u4ef6<\/th>\u4f5c\u7528<\/th>\u4e0e\u6f0f\u6d1e\u7684\u5173\u7cfb<\/th><\/tr><\/thead>
Connector<\/td>\u76d1\u542c\u7aef\u53e3\uff0c\u89e3\u6790 HTTP \u534f\u8bae<\/td>\u63a5\u6536 PUT \u8bf7\u6c42<\/td><\/tr>
Engine\/Host\/Context<\/td>\u865a\u62df\u4e3b\u673a\u548c\u5e94\u7528\u4e0a\u4e0b\u6587<\/td>\u786e\u5b9a\u8bf7\u6c42\u5f52\u5c5e\u54ea\u4e2a Web \u5e94\u7528<\/td><\/tr>
Wrapper<\/td>Servlet \u7684\u5305\u88c5\u5668<\/td>\u5c06\u8bf7\u6c42\u8def\u7531\u5230 DefaultServlet<\/td><\/tr>
DefaultServlet<\/td>\u5904\u7406\u9759\u6001\u8d44\u6e90\u7684\u9ed8\u8ba4 Servlet<\/td>\u6f0f\u6d1e\u53d1\u751f\u5728\u8fd9\u91cc<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

DefaultServlet \u5904\u7406 PUT \u7684\u6838\u5fc3\u4ee3\u7801\u903b\u8f91<\/h2>\n\n\n\n
\n
\/\/ org.apache.catalina.servlets.DefaultServlet
protected void doPut(HttpServletRequest req, HttpServletResponse resp) {
\/\/ 1. \u68c0\u67e5 readonly \u914d\u7f6e
if (readOnly) {
sendError(resp, HttpServletResponse.SC_FORBIDDEN);
return;
}
\/\/ 2. \u89e3\u6790\u8bf7\u6c42\u8def\u5f84
String path = getRelativePath(req);

\/\/ 3. \u68c0\u67e5\u662f\u5426\u662f Partial PUT\uff08\u901a\u8fc7 Content-Range \u5934\u5224\u65ad\uff09
if (req.getHeader(\"Content-Range\") != null) {
    \/\/ \u8fdb\u5165 Partial PUT \u5904\u7406\u5206\u652f
    executePartialPut(req, path);
} else {
    \/\/ \u666e\u901a PUT \u5904\u7406
    executePut(req, path);
}


<\/code><\/pre>\n<\/blockquote>\n\n\n\n
\n
\n
\n
<\/p>\n<\/blockquote>\n\n\n\n
Partial PUT \u7684\u6838\u5fc3\u5904\u7406\uff08\u6f0f\u6d1e\u89e6\u53d1\u70b9\uff09<\/h2>\n\n\n\n
Tomcat \u4e3a\u4e86\u652f\u6301\u65ad\u70b9\u7eed\u4f20\u5f0f\u7684\u6587\u4ef6\u4e0a\u4f20\uff0c\u5b9e\u73b0\u4e86 Partial PUT\uff1a<\/p>\n<\/blockquote>\n<\/blockquote>\n\n\n\n
protected void executePartialPut(HttpServletRequest req, String path) {\n    \/\/ \u5173\u952e\uff1a\u751f\u6210\u4e34\u65f6\u6587\u4ef6\u540d\n    \/\/ \u539f\u4ee3\u7801\u5b58\u5728\u6f0f\u6d1e\uff1a\u5c06\u8def\u5f84\u4e2d\u7684 \"\/\" \u66ff\u6362\u4e3a \".\"\n    String tempFileName = path.replace('\/', '.');\n    \n    \/\/ \u751f\u6210\u7684\u4e34\u65f6\u6587\u4ef6\u8def\u5f84\n    File tempFile = new File(tempDir, tempFileName);\n    \n    \/\/ \u5c06\u4e0a\u4f20\u7684\u6570\u636e\u5199\u5165\u4e34\u65f6\u6587\u4ef6\n    \/\/ ...\n    \n    \/\/ \u540e\u7eed\u4f1a\u5c06\u4e34\u65f6\u6587\u4ef6\u5185\u5bb9\u5408\u5e76\u5230\u76ee\u6807\u6587\u4ef6\n}<\/code><\/pre>\n\n\n\n
\u653b\u51fb\u8005\u8f93\u5165\uff1a<\/p>\n\n\n\n
PUT \/uploads\/..\/..\/work\/Catalina\/localhost\/ROOT\/.evil.session\nContent-Range: bytes 0-1000\/1001<\/code><\/pre>\n\n\n\n
Tomcat \u5904\u7406\u540e\uff1a<\/p>\n\n\n\n
path<\/code> = \/uploads\/..\/..\/work\/Catalina\/localhost\/ROOT\/.evil.session<\/code><\/p>\n\n\n\n
tempFileName<\/code> = .uploads....work.Catalina.localhost.ROOT..evil.session<\/code><\/p>\n\n\n\n
\u4f46\u5b9e\u9645\u7684\u6587\u4ef6\u5199\u5165\u903b\u8f91\u53ef\u80fd\u56e0\u8def\u5f84\u89e3\u6790\u800c\u5230\u8fbe Session \u76ee\u5f55<\/strong><\/p>\n\n\n\n
\u653b\u51fb\u8005\u5229\u7528 Tomcat \u7684\u4e34\u65f6\u6587\u4ef6\u76ee\u5f55\u548c Session \u76ee\u5f55\u7684\u76f8\u5bf9\u4f4d\u7f6e\u5173\u7cfb\uff0c\u901a\u8fc7\u6784\u9020\u7279\u5b9a\u7684\u8def\u5f84\uff0c\u8ba9\u4e34\u65f6\u6587\u4ef6\u6070\u597d\u843d\u5728 Session \u5b58\u50a8\u76ee\u5f55\u4e2d\u3002<\/p>\n\n\n\n
Session \u6301\u4e45\u5316\u673a\u5236\uff08FileStore\uff09<\/h2>\n\n\n\n
Tomcat \u9ed8\u8ba4\u4f7f\u7528\u5185\u5b58\u5b58\u50a8 Session\uff08StandardManager<\/code>\uff09\uff0c\u670d\u52a1\u5668\u91cd\u542f\u540e Session \u4e22\u5931\u3002PersistentManager<\/code> \u53ef\u4ee5\u5c06 Session \u4fdd\u5b58\u5230\u78c1\u76d8\u6216\u6570\u636e\u5e93\uff0c\u5b9e\u73b0\uff1a<\/p>\n\n\n\n
    \n
  • \u670d\u52a1\u5668\u91cd\u542f\u540e Session \u4e0d\u4e22\u5931<\/li>\n\n\n\n
  • \u5185\u5b58\u4e0d\u8db3\u65f6\u5c06\u4e0d\u6d3b\u8dc3\u7684 Session \u6362\u51fa\u5230\u78c1\u76d8<\/li>\n<\/ul>\n\n\n\n
    \u914d\u7f6e\uff1a<\/p>\n\n\n\n
    <Manager className=\"org.apache.catalina.session.PersistentManager\">\n    <Store className=\"org.apache.catalina.session.FileStore\" \n           directory=\"\/path\/to\/sessions\"\/>\n<\/Manager><\/code><\/pre>\n\n\n\n
    Session\u5b58\u50a8\u6d41\u7a0b\uff1a<\/p>\n\n\n\n
    \u7528\u6237\u767b\u5f55 \u2500\u2500\u25b6 \u521b\u5efa Session \u5bf9\u8c61 \u2500\u2500\u25b6 \u5e8f\u5217\u5316\u4e3a\u5b57\u8282\u6d41 \u2500\u2500\u25b6 \u5199\u5165 .session \u6587\u4ef6<\/code><\/pre>\n\n\n\n
    Session \u8bfb\u53d6\u6d41\u7a0b\uff1a<\/p>\n\n\n\n
    \u8bf7\u6c42\u643a\u5e26 JSESSIONID \u2500\u2500\u25b6 \u67e5\u627e .session \u6587\u4ef6 \u2500\u2500\u25b6 \u53cd\u5e8f\u5217\u5316 \u2500\u2500\u25b6 \u6062\u590d Session \u5bf9\u8c61<\/code><\/pre>\n\n\n\n
    *Session \u6587\u4ef6\u7684\u547d\u540d\u89c4\u5219<\/p>\n\n\n\n
    JSESSIONID=abc123  \u2500\u2500\u25b6  \u67e5\u627e abc123.session \u6587\u4ef6\nJSESSIONID=.evil   \u2500\u2500\u25b6  \u67e5\u627e .evil.session \u6587\u4ef6<\/code><\/pre>\n\n\n\n
    \u6625\u79cb\u4e91\u955c\u5237\u9898\uff1aCVE-2025-24813<\/h2>\n\n\n\n
    <\/p>\n","protected":false},"excerpt":{"rendered":"
    \u63cf\u8ff0\uff1aApache Tomcat \u662f\u4e00\u4e2a\u5e7f\u6cdb\u4f7f\u7528\u7684\u5f00\u6e90Java Servlet\u3001JavaServer Page […]<\/p>\n","protected":false},"author":1,"featured_media":2416,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","footnotes":""},"categories":[25],"tags":[],"class_list":["post-2393","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-25"],"_links":{"self":[{"href":"https:\/\/shr1mp.top\/index.php\/wp-json\/wp\/v2\/posts\/2393","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/shr1mp.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/shr1mp.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/shr1mp.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/shr1mp.top\/index.php\/wp-json\/wp\/v2\/comments?post=2393"}],"version-history":[{"count":24,"href":"https:\/\/shr1mp.top\/index.php\/wp-json\/wp\/v2\/posts\/2393\/revisions"}],"predecessor-version":[{"id":2422,"href":"https:\/\/shr1mp.top\/index.php\/wp-json\/wp\/v2\/posts\/2393\/revisions\/2422"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/shr1mp.top\/index.php\/wp-json\/wp\/v2\/media\/2416"}],"wp:attachment":[{"href":"https:\/\/shr1mp.top\/index.php\/wp-json\/wp\/v2\/media?parent=2393"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/shr1mp.top\/index.php\/wp-json\/wp\/v2\/categories?post=2393"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/shr1mp.top\/index.php\/wp-json\/wp\/v2\/tags?post=2393"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}