Auth bypass in Freeradius
CVE-2011-2701
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.
Vulnerability class: Broken Authentication
EPSS: 0.018 (76.9th percentile) — read the EPSS interpretation.
Affected products
- Freeradius — versions 2.1.11
- N/a — versions n/a
Weakness classification (CWE)
References
- secalert@redhat.com (vdb-entry, x_refsource_BID)
- secalert@redhat.com (vdb-entry, x_refsource_XF)
- secalert@redhat.com (mailing-list, x_refsource_MLIST)
- secalert@redhat.com (mailing-list, x_refsource_MLIST)
- secalert@redhat.com (x_refsource_SECUNIA, Vendor Advisory, third-party-advisory)
- secalert@redhat.com (mailing-list, x_refsource_BUGTRAQ)
- secalert@redhat.com (x_refsource_MISC)
- secalert@redhat.com (x_refsource_SREASON, third-party-advisory)
- secalert@redhat.com (vdb-entry, x_refsource_SECTRACK)
- secalert@redhat.com (Patch, x_refsource_MISC)