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full-disclosure-uk: [Full-disclosure] ZDI-09-001: Microsoft SMB

[Full-disclosure] ZDI-09-001: Microsoft SMB NT Trans Request Parsing Remote Code Execution Vulnerability

From: <zdi-disclosures_at_nospam>
Date: Tue Jan 13 2009 - 20:03:55 GMT
To: full-disclosure@lists.grok.org.uk, bugtraq@securityfocus.com

ZDI-09-001: Microsoft SMB NT Trans Request Parsing Remote Code Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-09-001 January 13, 2009

  • CVE ID: CVE-2008-4834
  • Affected Vendors: Microsoft
  • Affected Products: Microsoft Windows XP Microsoft Windows 2000 SP4 Microsoft Windows Server 2003 Microsoft Windows Vista Microsoft Windows Server 2008
  • TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability by Digital Vaccine protection filter ID 6662. For further product information on the TippingPoint IPS, visit:


  • 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 Trans 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.

  • Vendor Response: Microsoft has issued an update to correct this vulnerability. More details can be found at:


  • Disclosure Timeline: 2008-06-25 - Vulnerability reported to vendor 2009-01-13 - Coordinated public release of advisory
  • Credit: This vulnerability was discovered by:
    • Anonymous
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