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地图 / ReDoS in net/http affects webhooks: Sidekiq job stuck at 100% CPU for a year

ReDoS in net/http affects webhooks: Sidekiq job stuck at 100% CPU for a year

拒绝服务 / 资源消耗失控 / #1531958

厂商
GitLab
严重程度
低危 · CVSS 4.3
赏金
—
弱点
资源消耗失控
研究员
@afewgoats
披露日期
2022-09-13
资产
Your Own GitLab Instance
CVE
—

该报告还没有中文解读。

原文摘录

摘自原文(6263 字符中的一小部分)
A Gitlab webhook may be pointed at a malicious webhook receiver. The webhook receiver can respond with a specially crafted long header. Gitlab processes the header with Ruby's net/http where there is a regular expression operation with quadratic complexity (ReDoS). This causes the `web_hook` …
原文中的代码
line = sock.readuntil("\n", true).sub(/\s+\z/, '')

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 GitLab 所有。

时间线

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

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