SB2025021194 - Insufficient verification of data authenticity in Distribution



SB2025021194 - Insufficient verification of data authenticity in Distribution

Published: February 11, 2025

Security Bulletin ID SB2025021194
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Insufficient verification of data authenticity (CVE-ID: CVE-2025-24976)

CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to inject an untrusted signing key in a JWT.

The vulnerability exists due to the way the JWK verification is performed. When a JWT contains a JWK header without a certificate chain, the code only checks if the KeyID (kid) matches one of the trusted keys, but doesn't verify that the actual key material matches. A remote attacker can pass arbitrary data to the application signed with an untrusted JWT.


Remediation

Install update from vendor's website.