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地图 / HTTP Proxy Bypass via `CURLOPT_CUSTOMREQUEST` Verb Tunneling

HTTP Proxy Bypass via `CURLOPT_CUSTOMREQUEST` Verb Tunneling

访问控制 / 访问控制缺陷(通用) / #3231321

厂商
curl
严重程度
中危
赏金
—
弱点
访问控制缺陷(通用)
研究员
@alphox
披露日期
2025-07-01
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(8063 字符中的一小部分)
A logic flaw in `libcurl` version **8.14.1** allows an attacker to bypass restrictive HTTP proxy firewalls by "tunneling" an arbitrary HTTP verb within a `CONNECT` request. By setting `CURLOPT_CUSTOMREQUEST` to `CONNECT` for a standard `http://` URL, an attacker can trick `libcurl` into creating a …
原文中的代码
echo "[VICTIM] Listening on 127.0.0.1:8081..."
nc -l -p 8081

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 @alphox · 版权归作者与 curl 所有

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