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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200612-19] pam_ldap: Authentication bypass vulnerability


Vulnerability Assessment Details

[GLSA-200612-19] pam_ldap: Authentication bypass vulnerability

Vulnerability Assessment Summary
pam_ldap: Authentication bypass vulnerability

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200612-19
(pam_ldap: Authentication bypass vulnerability)


Steve Rigler discovered that pam_ldap does not correctly handle
"PasswordPolicyResponse" control responses from an LDAP directory. This
causes the pam_authenticate() function to always succeed, even if the
previous authentication failed.

Impact

A locked user may exploit this vulnerability to bypass the LDAP
authentication mechanism, possibly gaining unauthorized access to the
system.

Workaround

There is no known workaround at this time.

References:
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5170


Solution:
All pam_ldap users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-auth/pam_ldap-183"


Network Security Threat Level: Low


Networks Security ID:

Vulnerability Assessment Copyright: (C) 2006 Michel Arboi

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