SMB Client Incomplete Response Vulnerability

Publish date: July 02, 2011
  Severity: HIGH
  CVE Identifier: CVE-2009-3676,MS10-020
  Advisory Date: JUL 02, 2011

  DESCRIPTION

The SMB client in the kernel in Microsoft Windows Server 2008 R2 and Windows 7 allows remote SMB servers and man-in-the-middle attackers to cause a denial of service (infinite loop and system hang) via a (1) SMBv1 or (2) SMBv2 response packet that contains (a) an incorrect length value in a NetBIOS header or (b) an additional length field at the end of this response packet, aka "SMB Client Incomplete Response 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: 1003832
  Trend Micro Deep Security DPI Rule Name: 1003832 - Microsoft Windows 'KeAccumulateTicks()' SMB2 Packet Remote Denial Of Service Vulnerability

  AFFECTED SOFTWARE AND VERSION

  • microsoft windows_7
  • microsoft windows_server_2008 -

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