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VID 26739
Severity 20
Port 139,445
Protocol TCP
Class SMB
Detailed Description The Hotfix (MS15-122, 3105256) for 'Security Update for Kerberos to Address Security Feature Bypass' has not been applied.
This security update resolves a security feature bypass in Microsoft Windows. An attacker could bypass Kerberos authentication on a target machine and decrypt drives protected by BitLocker. The bypass can be exploited only if the target system has BitLocker enabled without a PIN or USB key, the computer is domain-joined, and the attacker has physical access to the computer.

Windows Kerberos Security Feature Bypass - CVE-2015-6095
A security feature bypass exists in Windows when Kerberos fails to check the password change of a user signing into a workstation. An attacker could bypass Kerberos authentication on a target machine and decrypt drives protected by BitLocker.

* Note: This check requires an account with administrative privileges which can log into the host to scan. Absence of this condition will result in the check not being performed and a False Negative for all vulnerable hosts.

* References:
https://technet.microsoft.com/en-us/library/security/ms15-122

* Platforms Affected:
Windows Vista SP2
Windows Vista x64 SP2
Windows Server 2008 SP2
Windows Server 2008 x64 SP2
Windows 7 SP1
Windows 7 x64 SP1
Windows Server 2008 R2 SP1
Windows Server 2008 R2 x64 SP1
Windows 8
Windows 8.1
Windows Server 2012
Windows Server 2012 R2
Windows 10
Recommendation Apply the appropriate patch(3105256) for your system, as listed in Microsoft Security Bulletin MS15-122 at https://technet.microsoft.com/en-us/library/security/ms15-122
-- OR --
Patches for Windows platforms are also available from the Microsoft Windows Update Web site, http://windowsupdate.microsoft.com. Windows Update detects what version of Windows you are running and offers the appropriate patch.
Related URL CVE-2015-6095 (CVE)
Related URL (SecurityFocus)
Related URL (ISS)