Microsoft Windows SMB Client Remote Code Execution

Notification Type: IBM Internet Security Systems Protection Alert
Notification Date: February 09, 2010
Notification Version: 1.0
   
Name: Microsoft Windows SMB Client Remote Code Execution
Public disclosure/
In the wild date:
February 09, 2010
Aliases: MS10-006
CVE: CVE-2010-0016
Description:

Microsoft Windows SMB Client could allow a remote attacker to execute arbitrary code on the system.

 

ISS Coverage

Product Content Version
Proventia Network IDS
Proventia Network IPS
Proventia Network MFS
Proventia Server (Linux)
RealSecure Network
RealSecure Server Sensor
30.020
Proventia Desktop
Proventia Server IPS (Windows)
2480
Propagation Techniques ISS Protection Available

remote exploit

 

SMB_Negotiate_MaxSize_Overflow

09 Feb 2010

Detailed Description

Business Impact:

This vulnerability is in a core component of most modern Microsoft Windows operating systems, including Windows 7.  The easiest attack vector requires an attacker to set up an SMB server and entice a user to click a link to the server. Successful exploitation provides the attacker with complete control of the end user's system.

*CVSS Base Score: 9.3
  Access Vector: Network
Access Complexity: Medium
Authentication: None
Confidentiality Impact: Complete
Integrity Impact: Complete
Availability Impact: Complete
Adjusted Temporal Score: 6.9
  Exploitability: Unproven
Remediation Level: Official Fix
Report Confidence: Confirmed
Affected Products: For a full list of affected versions, see references below.
Technical Description:

Microsoft Windows could allow a remote attacker to execute arbitrary code on the system, caused by the improper validation of fields in the SMB response by the Server Message Block (SMB) client. By persuading a victim to connect to a malicious SMB server, a remote attacker could exploit this vulnerability to corrupt a pool and execute arbitrary code on the system with system level privileges.

Remediation:

Patches are available. See References for details.

References

XFDB: http://xforce.iss.net/xforce/xfdb/55151
Microsoft: http://www.microsoft.com/technet/security/bulletin/ms10-006.mspx

Revision History

1.0 Initial publication.

* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

About IBM Security Systems

IBM Security Systems include an extensive portfolio of hardware, software solutions, professional and managed services offerings covering the spectrum of IT and business security risks: people and identity, data and information, application and process, network, server and endpoint and physical infrastructure, empowering clients to innovate and operate their businesses on the most secure infrastructure platforms. Through world-class solutions that address risk across the enterprise, IBM helps organizations build a strong security posture that helps reduce costs, improve service, and manage risk. IBM X-Force(R) Research and Development is one of the most renowned commercial security research and development groups in the world. For more information on how to address today's biggest risks, please visit us at ibm.com/security.