pam_ldap: Authentication bypass vulnerability

pam_ldap: Authentication bypass vulnerability pam_ldap contains a vulnerability that may allow a remote attacker to gain system access. pam_ldap 2005-08-31 2005-08-31 103659 remote 180 180

pam_ldap is a Pluggable Authentication Module which allows authentication against LDAP directories.

When a pam_ldap client attempts to authenticate against an LDAP server that omits the optional error value from the PasswordPolicyResponseValue, the authentication attempt will always succeed.

A remote attacker may exploit this vulnerability to bypass the LDAP authentication mechanism, gaining access to the system possibly with elevated privileges.

There is no known workaround at this time.

All pam_ldap users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=sys-auth/pam_ldap-180"

CAN-2005-2641 US-CERT VU#778916 koon koon adir