What’s Vulnerable › Vulnerabilities

CVE-2011-4966

• Severity: medium (CVSS 6.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2013-03-12 · updated 2026-06-16
• Weakness: CWE-255

Description

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.

Affected products

• freeradius: through 2.2.0; 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 (+42)

References

• http://lists.opensuse.org/opensuse-updates/2013-01/msg00029.html
• http://lists.opensuse.org/opensuse-updates/2013-01/msg00079.html
• http://rhn.redhat.com/errata/RHBA-2012-0881.html
• http://rhn.redhat.com/errata/RHSA-2013-0134.html
• https://github.com/alandekok/freeradius-server/commit/1b1ec5ce75e224bd1755650c18ccdaa6dc53e605
• http://lists.opensuse.org/opensuse-updates/2013-01/msg00029.html
• http://lists.opensuse.org/opensuse-updates/2013-01/msg00079.html
• http://rhn.redhat.com/errata/RHBA-2012-0881.html
• http://rhn.redhat.com/errata/RHSA-2013-0134.html
• https://github.com/alandekok/freeradius-server/commit/1b1ec5ce75e224bd1755650c18ccdaa6dc53e605

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