CVE-2023-34409: percona monitoring_and_management Path Traversal

Vulnerability summary

CVE-2023-34409 is a critical (CVSS 9.8) Path Traversal vulnerability in percona monitoring_and_management. EPSS estimates a 1.28% chance of exploitation in the next 30 days, higher than 69.5% of scored vulnerabilities.

Timeline

1. 06-06-2023
   PublishedVulnerability first disclosed.
2. 08-01-2025
   Last modifiedVulnerability information updated.

Description

In Percona Monitoring and Management (PMM) server 2.x before 2.37.1, the authenticate function in auth_server.go does not properly formalize and sanitize URL paths to reject path traversal attempts. This allows an unauthenticated remote user, when a crafted POST request is made against unauthenticated API routes, to access otherwise protected API routes leading to escalation of privileges and information disclosure.

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.