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[SA16518] pam_ldap Client Authentication Security Bypass

From: Secunia Security Advisories (sec-advsecunia.com)
Date: Wed Aug 24 2005 - 13:37:44 CDT


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TITLE:
pam_ldap Client Authentication Security Bypass

SECUNIA ADVISORY ID:
SA16518

VERIFY ADVISORY:
http://secunia.com/advisories/16518/

CRITICAL:
Less critical

IMPACT:
Security Bypass

WHERE:
From remote

SOFTWARE:
pam_ldap 1.x
http://secunia.com/product/2131/

DESCRIPTION:
A security issue has been reported in pam_ldap, which can be
exploited by malicious people to bypass certain security
restrictions.

The problem is caused due to an error when a pam_ldap client
authenticates against an LDAP server that returns a
passwordPolicyResponse control in a BindResponse without the optional
"error" field.

Successful exploitation grants access without checking the
authentication result.

The security issue has been reported in versions 169 through 179.

SOLUTION:
Update to version 180.

PROVIDED AND/OR DISCOVERED BY:
Reported by vendor.

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