modules/rlm_unix/rlm_unix.c in FreeRADIUS before 2.2.0, when unix mode is enabled for user authentication, does not properly check the password expiration in /etc/shadow, which allows remote authenticated users to authenticate using an expired password.

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FreeRADIUS security vulnerabilities

rlmunix protection bypass, rlmpap memory corruption...

CVE-2011-4966

CVE-2011-4966 affects FreeRADIUS prior to 2.2.0, where rlm_unix.c in unix authentication mode does not correctly check password expiration in /etc/shadow. This allows remote authenticated users to authenticate using an expired password. Connected advisories and patches reference a fix/patch for o...