SB2012050309 - Improper Authentication in freeradius (Alpine package)
Published: May 3, 2012
Security Bulletin ID
SB2012050309
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 security vulnerability.
1) Improper Authentication (CVE-ID: CVE-2011-2701)
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
The ocsp_check function in rlm_eap_tls.c in FreeRADIUS 2.1.11, when OCSP is enabled, does not properly parse replies from OCSP responders, which allows remote attackers to bypass authentication by using the EAP-TLS protocol with a revoked X.509 client certificate.
Remediation
Install update from vendor's website.