System Security Services Daemon (SSSD) before 1.0.1, when the krb5 auth_provider is configured but the KDC is unreachable, allows physically proximate attackers to authenticate, via an arbitrary password, to the screen-locking program on a workstation that has any user's Kerberos ticket-granting ticket (TGT); and might allow remote attackers to bypass intended access restrictions via vectors involving an arbitrary password in conjunction with a valid TGT.
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
Link | Tags |
---|---|
http://secunia.com/advisories/38160 | third party advisory vendor advisory |
http://www.securityfocus.com/bid/37747 | vdb entry |
https://fedorahosted.org/sssd/wiki/Releases/Notes-1.0.1 | patch |
https://bugzilla.redhat.com/show_bug.cgi?id=553233 |