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地图 / WebSocket Fragmentation DoS on Curl Client

WebSocket Fragmentation DoS on Curl Client

拒绝服务 / 资源消耗失控 / #3303765

厂商
curl
严重程度
中危
赏金
—
弱点
资源消耗失控
研究员
@pelioro
披露日期
2025-08-19
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(3695 字符中的一小部分)
Summary A malicious WebSocket server can send a fragmented message (FIN=0) followed by a flood of continuation frames, causing the client (curl) to continuously allocate memory while waiting for message completion. This can result in high memory usage and potential crash (OOM), representing a …
原文中的代码
#!/usr/bin/env python3
# ws_frag_poc.py - DoS PoC for WebSocket fragmentation
import socket, base64, hashlib, threading

HOST, PORT = "0.0.0.0", 8765

def make_handshake_response(key):
    GUID = b"258EAFA5-E914-47DA-95CA-C5AB0DC85B11"
    accept = base64.b64encode(hashlib.sha1(key + …

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 @pelioro · 版权归作者与 curl 所有

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