Cachet is an open source status page system. Prior to version 2.5.1, authenticated users, regardless of their privileges (User or Admin), can exploit a new line injection in the configuration edition feature (e.g. mail settings) and gain arbitrary code execution on the server. This issue was addressed in version 2.5.1 by improving `UpdateConfigCommandHandler` and preventing the use of new lines characters in new configuration values. As a workaround, only allow trusted source IP addresses to access to the administration dashboard.
The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.
| Link | Tags |
|---|---|
| https://github.com/fiveai/Cachet/security/advisories/GHSA-9jxw-cfrh-jxq6 | third party advisory |
| https://github.com/fiveai/Cachet/releases/tag/v2.5.1 | release notes third party advisory |
| https://blog.sonarsource.com/cachet-code-execution-via-laravel-configuration-injection/ | exploit third party advisory |