SB2024032029 - PKCE downgrade in Spring Authorization Server
Published: March 20, 2024
Security Bulletin ID
SB2024032029
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Authentication (CVE-ID: CVE-2024-22258)
CWE-ID: CWE-287 - Improper Authentication
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to PKCE downgrade when a Confidential Client uses PKCE for the Authorization Code Grant. A remote attacker can bypass authentication process and gain unauthorized access to the application.
Remediation
Install update from vendor's website.