pam_ldap -- authentication bypass vulnerability

Description:

Luke Howard reports:

If a pam_ldap client authenticates against an LDAP server that returns a passwordPolicyResponse control, but omits the optional "error" field of the PasswordPolicyResponseValue, then the LDAP authentication result will be ignored and the authentication step will always succeed.

References:

• CVE name CVE-2005-2641
• CERT vulnerability note 778916
• URL: <https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=166163>

Affects:

• pam_ldap <1.8.0

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