CVE-2021-39172 PoC — New line injection during configuration edition

Source

https://github.com/W1ngLess/CVE-2021-39172-RCE

Associated Vulnerability

Title: New line injection during configuration edition (CVE-2021-39172)
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 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.

Description

Cachet 2.4 Code Execution via Laravel Configuration Injection CVE-2021-39172

Readme

# CVE-2021-39172
Cachet 2.4: Code Execution via Laravel Configuration Injection

blog post about the vulnerability 
https://blog.sonarsource.com/cachet-code-execution-via-laravel-configuration-injection/


you can use this for ctf or just for learning
have fun and May God bless you all

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