CVE-2016-3237HighCVSS 6.4

Kerberos Security Feature Bypass Vulnerability

Published
August 9, 2016
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2016-3237 →

📋 Description

A security feature bypass vulnerability exists in Windows when Kerberos improperly handles a password change request and falls back to NT LAN Manager (NTLM) Authentication Protocol as the default authentication protocol. An attacker who successfully exploited this vulnerability could use it to bypass Kerberos authentication. To exploit this vulnerability, an attacker would have to be able to launch a man-in-the-middle (MiTM) attack against the traffic passing between a domain controller and the target machine. The update addresses this vulnerability by preventing Kerberos from falling back to NTLM as the default authentication protocol during a domain account password change.

🎯 Affected products25

  • Windows 10 Version 1511 for 32-bit Systems
  • Windows 10 Version 1511 for x64-based Systems
  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 for x64-based Systems
  • Windows 10 for 32-bit Systems
  • Windows 10 for x64-based Systems
  • Windows 7 for 32-bit Systems Service Pack 1
  • Windows 7 for x64-based Systems Service Pack 1
  • Windows 8.1 for 32-bit systems
  • Windows 8.1 for x64-based systems
  • Windows RT 8.1
  • Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
  • Windows Server 2008 for 32-bit Systems Service Pack 2
  • Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
  • Windows Server 2008 for Itanium-Based Systems Service Pack 2
  • Windows Server 2008 for x64-based Systems Service Pack 2
  • Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
  • Windows Server 2012
  • Windows Server 2012 (Server Core installation)
  • Windows Server 2012 R2
  • Windows Server 2012 R2 (Server Core installation)
  • Windows Vista Service Pack 2
  • Windows Vista x64 Edition Service Pack 2

✅ Remediation

KB3167679 (Security Update) KB3192440 (Security Update) KB3192441 (Security Update) KB3185330 (Monthly Rollup) KB3192391 (Security Only) KB3185331 (Monthly Rollup) KB3192392 (Security Only) KB3194798 (Security Update) KB3185332 (Monthly Rollup) KB3192393 (Security Only)

🔗 References (11)