VulnerabilityModified

CVE-2023-34409

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.

CRITICAL 9.8EPSS 1.28%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.28%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 1.28% probability · 68th percentile
CISA KEV: Not listed
Weakness: CWE-22
Affected: percona/monitoring and management
Source: cve@mitre.org

References

https://www.percona.com/blog/pmm-authentication-bypass-vulnerability-fixed-in-2-37-1/Vendor Advisory
https://www.percona.com/blog/pmm-authentication-bypass-vulnerability-fixed-in-2-37-1/Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.