Kurz gesagt
- CVE-2021-39173 ist eine Schwachstelle (HOCH (CVSS 8.8)) in cachethq/cachet, catchet (catchethq).
- Wahrscheinlichkeit einer Ausnutzung in den nächsten 30 Tagen (EPSS): 2.4%, höher als bei 83.8% aller Schwachstellen.
- Abhilfe: auf 2.5.1 oder neuer aktualisieren.
Description
Impact
Authenticated users, regardless of their privileges (User or Admin), can trick Cachet and install the instance again, leading to arbitrary code execution on the server.
Patches
This issue was addressed by improving the middleware ReadyForUse, which now performs a stricter validation of the instance name.
Workarounds
Only allow trusted source IP addresses to access to the administration dashboard.
References
For more information
If you have any questions or comments about this advisory, you can contact:
- The original reporters, by sending an email to vulnerability.research [at] sonarsource.com;
- The maintainers, by opening an issue on this repository.
NVD description
Cachet is an open source status page system. Prior to version 2.5.1 authenticated users, regardless of their privileges (User or Admin), can trick Cachet and install the instance again, leading to arbitrary code execution on the server. This issue was addressed in version 2.5.1 by improving the middleware `ReadyForUse`, which now performs a stricter validation of the instance name. As a workaround, only allow trusted source IP addresses to access to the administration dashboard.
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