Vulnerability in Microsoft Workstation Service could allow remote code execution

Notification Date: November 14, 2006
Notification Version: 1.0
Name: Vulnerability in Microsoft Workstation Service could allow remote code execution
Public disclosure/
In the wild date:
Vulnerability disclosed Nov. 14, 2006.  As of Nov. 14, no public exploits have been released.
Aliases: Microsoft Security Bulletin MS06-070
CVE: CVE-2006-4691
Description: Microsoft has released patches for a critical, remote code execution vulnerability in the Workstation Service.  This service runs by default on Microsoft Operating Systems. By sending malicious requests to the named pipe for the Workstation Service, attackers can trigger a stack overflow and gain control of the affected host.


ISS Coverage


Content Version

Network Sensor 7.0
Proventia A
Proventia IPS (G/GX) prior to Firmware Version 1.2
Server Sensor 7.0


Proventia IPS (G/GX) Firmware Version 1.2 or
Proventia M
Proventia Server (Linux)


Proventia Server (Windows)


Proventia Desktop


RealSecure Desktop 7.0 (AM SP 6.73 or 7.73)


BlackICE PC Protection 3.6


Enterprise Scanner


Internet Scanner

Propagation Techniques ISS Protection Available
 remote exploit    MSRPC_WksSvc_Mgmnt_JoinDom_Bo    Nov 14, 2006

 Detection Techniques      ISS Protection Available
 network assessment  win-ms06kb924270-update/vulnID 29949  Nov 14, 2006

Detailed Description

Business Impact: A successful compromise of an affected version of the Workstation Service leaves the attacker in complete control of the targeted host. This can result in exposure of confidential information, loss of productivity, and further network compromise. This vulnerability could be exploited by worms or other malware. 
CVSS: Base Score:  10.0
  Access Vector:  Remote
Access Complexity:  Low
Authentication:  Not Required
Confidentiality Impact:  Complete
Integrity Impact:  Complete
Availability Impact:  Complete
Impact Bias:  Normal
Adjusted Temporal Score:  7.4
  Exploitability:  Unproven
Remediation Level:  Official Fix
Report Confidence:  Confirmed
Affected Products: Microsoft Corporation: Windows 2000 SP4
Microsoft Corporation: Windows XP SP2
Technical Description: The Microsoft Workstation Service runs by default and maintains client connections to Windows Networking services. A remote attacker can connect to the named pipe for this service and issue a malformed request that overflows a stack buffer. This can result in code execution, providing the attacker with total control of the target host. Authentication is not required in Windows 2000, but it is required in XP.
Workaround:  Apply the appropriate patch for your system, as listed in Microsoft Security Bulletin MS06-070.


 X-Force Database 

Revision History

1.0 Initial release.

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