[Japanese]

JVNDB-2011-000060

Windows URL Protocol Handler may insecurely load executable files

Overview

Windows URL Protocol Handler may use unsafe methods for determining how to load executable (.exe) files.

Windows URL Protocol Handler loads a specified executable for each protocol. Windows URL Protocol Handler contains an issue with the file search path, which may insecurely load executable files.

Makoto Shiotsuki of Security Professionals Network Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

Base Metrics: 6.8 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: Partial

Affected Products

Products that use the Windows URL Protocol Handler may be affected. For more information, refer to the developer's website.

Microsoft Corporation
  • Microsoft Internet Explorer 6
  • Microsoft Internet Explorer 7
  • Microsoft Internet Explorer 8
  • Microsoft Internet Explorer 9
  • Microsoft Windows 7 for 32-bit Systems
  • Microsoft Windows 7 for x64-based Systems
  • Microsoft Windows Server 2003
  • Microsoft Windows Server 2003 for Itanium-based Systems
  • Microsoft Windows Server 2003 x64 Edition
  • Microsoft Windows Server 2008 for 32-bit Systems
  • Microsoft Windows Server 2008 for Itanium-based Systems
  • Microsoft Windows Server 2008 for x64-based Systems
  • Microsoft Windows Server 2008 R2 for Itanium-based Systems
  • Microsoft Windows Server 2008 R2 for x64-based Systems
  • Microsoft Windows Vista
  • Microsoft Windows Vista x64 Edition
  • Microsoft Windows XP
  • Microsoft Windows XP Professional x64 Edition

Impact

An attacker may execute arbitrary code with the privilege of the running application.
Solution

[Update the Software]
Apply the MS11-057 according to the information provided by Microsoft.
(http://www.microsoft.com/japan/technet/security/bulletin/MS11-057.mspx)
Vendor Information

Microsoft Corporation
CWE (What is CWE?)

  1. No Mapping(CWE-Other) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2011-1961
References

  1. JVN : JVN#80404511
  2. National Vulnerability Database (NVD) : CVE-2011-1961
  3. IPA SECURITY ALERTS : Security Alert for Vulnerability in Windows
Revision History

[2011/08/10]
  Web page published