CVE-2024-34340 Information

Description

Cacti provides an operational monitoring and fault management framework. Prior to version 1.2.27 Cacti calls compat_password_hash when users set their password. compat_password_hash use password_hash if there is it else use md5. When verifying password it calls compat_password_verify. In compat_password_verify password_verify is called if there is it else use md5. password_verify and password_hash are supported on PHP < 5.5.0 following PHP manual. The vulnerability is in compat_password_verify. Md5-hashed user input is compared with correct password in database by $md5 == $hash. It is a loose comparison not ===. It is a type juggling vulnerability. Version 1.2.27 contains a patch for the issue.

Reference

https://github.com/Cacti/cacti/security/advisories/GHSA-37x7-mfjv-mm7m