MS11-005: Vulnerability in Active Directory Could Allow Denial of Service (2478953)

This script is Copyright (C) 2011-2014 Tenable Network Security, Inc.


Synopsis :

The directory service on the remote host is affected by denial of
service vulnerability.

Description :

The version of Active Directory installed on the remote host fails to
properly validate service principal names (SPN), which could result in
SPN collisions. If a collision occurs, services that use the SPN will
downgrade to NTLM when configured to do so. Services that are not
configured to negotiate will become unavailable.

A remote attacker who has local administrator privileges on a domain-
joined host can exploit this, resulting in a denial of service.

See also :

http://technet.microsoft.com/en-us/security/bulletin/ms11-005

Solution :

Microsoft has released a patch for Windows 2003.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 4.1
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Windows : Microsoft Bulletins

Nessus Plugin ID: 51905 ()

Bugtraq ID: 46145

CVE ID: CVE-2011-0040