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  3. Microsoft LSASS ADAM/ADLDS Privilege Escalation Vulnerability

Microsoft LSASS ADAM/ADLDS Privilege Escalation Vulnerability

Risk

High

Date Discovered

September 14, 2010

Description

Microsoft Windows Local Security Authority Subsystem Service (LSASS) is prone to a privilege-escalation vulnerability. This issue occurs in Active Directory, Active Directory Application Mode (ADAM), and Active Directory Lightweight Directory Service (ADLDS). An attacker can exploit this issue to execute arbitrary code with SYSTEM-level privileges. Successfully exploiting this issue will facilitate in the complete compromise of affected computers.

Technologies Affected

  • Avaya Aura Conferencing 6.0 Standard
  • Avaya CallPilot Unified Messaging
  • Avaya Meeting Exchange - Client Registration Server
  • Avaya Meeting Exchange - Recording Server
  • Avaya Meeting Exchange - Streaming Server
  • Avaya Meeting Exchange - Web Conferencing Server
  • Avaya Meeting Exchange - Webportal
  • Avaya Messaging Application Server
  • Avaya Messaging Application Server 4
  • Avaya Messaging Application Server 5
  • Avaya Messaging Application Server MM 1.1
  • Avaya Messaging Application Server MM 2.0
  • Avaya Messaging Application Server MM 3.0
  • Avaya Messaging Application Server MM 3.1
  • Microsoft Active Directory
  • Microsoft Active Directory Application Mode (ADAM)
  • Microsoft Active Directory Lightweight Directory Service

Recommendations

Block external access at the network boundary, unless external parties require service.

If global access isn't needed, filter access to the affected computer at the network boundary. Restricting access to only trusted computers and networks might greatly reduce the likelihood of successful exploits.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.

Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity. This may indicate exploit attempts or activity that results from successful exploits.

Implement multiple redundant layers of security.

As an added precaution, deploy memory-protection schemes (such as nonexecutable stack/heap configuration and randomly mapped memory segments). This may complicate exploits of memory-corruption vulnerabilities.
Microsoft has released patches and an advisory to address this issue. Please see the references for more information.

Credits

Microsoft
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.
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