TA14-323A: Microsoft Windows Kerberos KDC Remote Privilege Escalation Vulnerability

Discussion in 'Security Alerts' started by News, Nov 19, 2014.

  1. News

    News Extraordinary Robot
    News Feed

    Jun 27, 2006
    Likes Received:
    Original release date: November 19, 2014
    Systems Affected

    • Microsoft Windows Vista, 7, 8, and 8.1
    • Microsoft Server 2003, Server 2008, Server 2008 R2, Server 2012, and Server 2012 R2

    A remote escalation of privilege vulnerability exists in implementations of Kerberos Key Distribution Center (KDC) in Microsoft Windows which could allow a remote attacker to take control of a vulnerable system. [1]


    The Microsoft Windows Kerberos KDC fails to properly check service tickets for valid signatures, which can allow aspects of the service ticket to be forged. The improper check allows an attacker to escalate valid domain user account privileges to those of a domain administrator account, which renders the entire domain vulnerable to compromise.

    At the time this release was issued, Microsoft was aware of limited, targeted attacks attempting to exploit this vulnerability.


    A valid domain user can pass invalid domain administrator credentials, gain access and compromise any system on the domain, including the domain controller. [2]


    An update is available from Microsoft. Please see Microsoft Security Bulletin MS14-068 and Microsoft Research Security and Defense Blog for more details, and apply the necessary updates.[1, 3]


    Revision History

    • November 19, 2014: Initial Draft

    This product is provided subject to this Notification and this Privacy & Use policy.

    Continue reading...

Share This Page