SMB Variable Validation Vulnerability

  Severity: HIGH
  CVE Identifier: CVE-2010-2551
  Advisory Date: MAR 22, 2011

  DESCRIPTION

The SMB Server in Microsoft Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 does not properly validate an internal variable in an SMB packet, which allows remote attackers to cause a denial of service (system hang) via a crafted (1) SMBv1 or (2) SMBv2 packet, aka "SMB Variable Validation Vulnerability."

  TREND MICRO PROTECTION INFORMATION

Trend Micro Deep Security shields networks through Deep Packet Inspection (DPI) rules. Trend Micro customers using OfficeScan with Intrusion Defense Firewall (IDF) plugin are also protected from attacks using these vulnerabilities. Please refer to the filter number and filter name when applying appropriate DPI and/or IDF rules.

  SOLUTION

  Trend Micro Deep Security DPI Rule Number: 1004348
  Trend Micro Deep Security DPI Rule Name: 1004348 - SMB Variable Validation Vulnerability

  AFFECTED SOFTWARE AND VERSION

  • Microsoft Windows Vista
  • Microsoft Windows Server 2008
  • Microsoft Windows 7