Bypassing Authentication via Revoked X.509 Client Certificate in FreeRADIUS 2.1.11

CVE-2011-2701 · MEDIUM Severity

AV:N/AC:M/AU:N/C:P/I:P/A:N

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.

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