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Microsoft Windows Services for UNIX Local Privilege Escalation Vulnerability

Risk

High

Date Discovered

September 11, 2007

Description

Microsoft Windows Services for UNIX is prone to a local privilege-escalation vulnerability. Attackers may exploit this issue to gain elevated privileges on affected computers. This facilitates the complete compromise of vulnerable computers. Microsoft Windows Services for UNIX 3.0 and 3.5 and Microsoft Subsystem for UNIX-based Applications are vulnerable to this issue.

Technologies Affected

  • Microsoft Services for Unix 3.0
  • Microsoft Services for Unix 3.5
  • Microsoft Subsystem for UNIX-based Applications

Recommendations

Permit local access for trusted individuals only. Where possible, use restricted environments and restricted shells.

To reduce the likelihood of attacks, allow access to trusted individuals only and implement restricted environments and privileges.
Microsoft has released an advisory along with fixes to address this issue. Please see the references for more information.

Credits

Brian A. Reiter of WolfeReiter is credited with assisting the vendor with resolving this issue. The initial discoverer of this issue is currently unknown.
Copyright © Symantec Corporation.
Permission to redistribute this alert electronically is granted as long as it is not edited in any way unless authorized by Symantec Security Response. Reprinting the whole or part of this alert in any medium other than electronically requires permission from secure@symantec.com.

Disclaimer
The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information.
Symantec, Symantec products, Symantec Security Response, and secure@symantec.com are registered trademarks of Symantec Corp. and/or affiliated companies in the United States and other countries. All other registered and unregistered trademarks represented in this document are the sole property of their respective companies/owners.

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