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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2010-0014
• https://bugzilla.redhat.com/show_bug.cgi?id=553233
• https://fedorahosted.org/sssd/wiki/Releases/Notes-1.0.1
• http://secunia.com/advisories/38160
• http://www.securityfocus.com/bid/37747