medium
6
CWE
255
Advisory Published
Updated

CVE-2011-4966

First published: Tue Mar 12 2013(Updated: )

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.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
FreeRADIUS FreeRADIUS
FreeRADIUS FreeRADIUS<=2.2.0
FreeRADIUS FreeRADIUS=0.1
FreeRADIUS FreeRADIUS=0.2
FreeRADIUS FreeRADIUS=0.3
FreeRADIUS FreeRADIUS=0.4
FreeRADIUS FreeRADIUS=0.5
FreeRADIUS FreeRADIUS=0.6
FreeRADIUS FreeRADIUS=0.7
FreeRADIUS FreeRADIUS=0.7.1
FreeRADIUS FreeRADIUS=0.8
FreeRADIUS FreeRADIUS=0.8.1
FreeRADIUS FreeRADIUS=0.9
FreeRADIUS FreeRADIUS=0.9.0
FreeRADIUS FreeRADIUS=0.9.1
FreeRADIUS FreeRADIUS=0.9.2
FreeRADIUS FreeRADIUS=0.9.3
FreeRADIUS FreeRADIUS=1.0.0
FreeRADIUS FreeRADIUS=1.0.1
FreeRADIUS FreeRADIUS=1.0.2
FreeRADIUS FreeRADIUS=1.0.3
FreeRADIUS FreeRADIUS=1.0.4
FreeRADIUS FreeRADIUS=1.0.5
FreeRADIUS FreeRADIUS=1.1.0
FreeRADIUS FreeRADIUS=1.1.1
FreeRADIUS FreeRADIUS=1.1.2
FreeRADIUS FreeRADIUS=1.1.3
FreeRADIUS FreeRADIUS=1.1.4
FreeRADIUS FreeRADIUS=1.1.5
FreeRADIUS FreeRADIUS=1.1.6
FreeRADIUS FreeRADIUS=1.1.7
FreeRADIUS FreeRADIUS=1.1.8
FreeRADIUS FreeRADIUS=2.0
FreeRADIUS FreeRADIUS=2.0.1
FreeRADIUS FreeRADIUS=2.0.2
FreeRADIUS FreeRADIUS=2.0.3
FreeRADIUS FreeRADIUS=2.0.4
FreeRADIUS FreeRADIUS=2.0.5
FreeRADIUS FreeRADIUS=2.1.0
FreeRADIUS FreeRADIUS=2.1.1
FreeRADIUS FreeRADIUS=2.1.2
FreeRADIUS FreeRADIUS=2.1.3
FreeRADIUS FreeRADIUS=2.1.4
FreeRADIUS FreeRADIUS=2.1.6
FreeRADIUS FreeRADIUS=2.1.7
FreeRADIUS FreeRADIUS=2.1.8
FreeRADIUS FreeRADIUS=2.1.9
FreeRADIUS FreeRADIUS=2.1.10
FreeRADIUS FreeRADIUS=2.1.11
FreeRADIUS FreeRADIUS=2.1.12

Remedy

http://rhn.redhat.com/errata/RHSA-2013-0134.html

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2011-4966?

    The severity of CVE-2011-4966 is typically classified as medium, due to the potential for remote authenticated users to authenticate with an expired password.

  • How do I fix CVE-2011-4966?

    To fix CVE-2011-4966, upgrade to FreeRADIUS version 2.2.0 or later where the vulnerability has been addressed.

  • Which versions of FreeRADIUS are affected by CVE-2011-4966?

    CVE-2011-4966 affects FreeRADIUS versions prior to 2.2.0, including all earlier versions.

  • Can CVE-2011-4966 be exploited by local users?

    Yes, CVE-2011-4966 can be exploited by local users who are able to authenticate despite having an expired password.

  • What are the potential impacts of CVE-2011-4966?

    The potential impacts of CVE-2011-4966 include unauthorized access to systems through the use of expired credentials, leading to sensitive data exposure.

Company

Resources

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