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地图 / libcurl FTP path normalization flaw allows decoded %2e%2e → CWD .. and directory escape (Path Traversal, CWE-22)

libcurl FTP path normalization flaw allows decoded %2e%2e → CWD .. and directory escape (Path Traversal, CWE-22)

路径遍历 / 路径遍历 / #3418861

厂商
curl
严重程度
中危
赏金
—
弱点
路径遍历
研究员
@ahn0x
披露日期
2025-11-11
资产
https://github.com/curl/curl
CVE
—

该报告还没有中文解读。

原文摘录

摘自原文(6403 字符中的一小部分)
ftp_parse_url_path in lib/ftp.c URL-decodes FTP path segments (e.g. %2e%2e) and then splits the decoded path into components using an ad-hoc loop that skips empty components produced by //. The code does not perform canonical path normalization (no stack-based handling of . or ..). As a result, …

默认不展示报告全文。以上为简短摘录,完整复现过程请阅读原文。版权归研究员与 curl 所有。

时间线

  • 报告提交
  • 公开披露
阅读 HackerOne 原文 ↗作者 @ahn0x · 版权归作者与 curl 所有

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