Microsoft SMB NT Trans2 Request Parsing Remote Code Execution Vulnerability

January 13th, 2009
ZDI-09-002 ZDI-CAN-379

CVE ID

CVE-2008-4835

CVSS Score

None None

Affected Vendors

Microsoft

Affected Products

Windows 2000 SP4
Windows XP
Windows Server 2003
Windows Vista
Windows Server 2008

Vulnerability Details

This vulnerability allows remote attackers to trigger a denial of service condition on vulnerable installations of Microsoft Windows; remote code execution is also theoretically possible. User interaction is not required to exploit this vulnerability.

The specific flaw exists in the processing of SMB requests. By specifying malformed values during an NT Trans2 request an attacker can cause the target system to kernel panic thereby requiring a reboot of the system. Further manipulation can theoretically result in remote unauthenticated code execution.

Additional Details

Microsoft has issued an update to correct this vulnerability. More details can be found at:
http://www.microsoft.com/technet/security/bulletin/ms09-001.mspx

Disclosure Timeline

  • 2008-08-14 - Vulnerability reported to vendor
  • 2009-01-13 - Coordinated public release of advisory

Credit

Anonymous

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