CVE-2016-3223

Group Policy Elevation of Privilege Vulnerability

CVE-2016-3223 is fixed in 23 products on 1 platform, first by KB3163018, released June 14, 2016. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
n/a
Important
Exploitation
None reported
Exploitation Unlikely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.2125
97th percentile

<p>An elevation of privilege vulnerability exists when Microsoft Windows processes group policy updates. An attacker who successfully exploited this vulnerability could potentially escalate permissions or perform additional privileged actions on the target machine.</p> <p>To exploit this vulnerability, an attacker would need to launch a man-in-the-middle (MiTM) attack against the traffic passing between a domain controller and the target machine. An attacker could then create a group policy to grant administrator rights to a standard user.</p> <p>The security update addresses the vulnerability by enforcing Kerberos authentication for certain calls over LDAP.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Windows 10 Version 1511 for 32-bit Systems 10586.420 KB3163018 Jun 14, 2016
Windows 10 Version 1511 for x64-based Systems 10586.420 KB3163018 Jun 14, 2016
Windows 10 for 32-bit Systems 10240.16942 KB3163017 Jun 14, 2016
Windows 10 for x64-based Systems 10240.16942 KB3163017 Jun 14, 2016
Windows 7 for 32-bit Systems Service Pack 1 KB3159398 Jun 14, 2016
Windows 7 for x64-based Systems Service Pack 1 KB3159398 Jun 14, 2016
Windows 8.1 for 32-bit systems KB3159398 Jun 14, 2016
Windows 8.1 for x64-based systems KB3159398 Jun 14, 2016
Windows RT 8.1 KB3159398 Jun 14, 2016
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 KB3159398 Jun 14, 2016
Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB3159398 Jun 14, 2016
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB3159398 Jun 14, 2016
Windows Server 2008 for 32-bit Systems Service Pack 2 KB3159398 Jun 14, 2016
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) KB3159398 Jun 14, 2016
Windows Server 2008 for Itanium-Based Systems Service Pack 2 KB3159398 Jun 14, 2016
Windows Server 2008 for x64-based Systems Service Pack 2 KB3159398 Jun 14, 2016
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) KB3159398 Jun 14, 2016
Windows Server 2012 KB3159398 Jun 14, 2016
Windows Server 2012 (Server Core installation) KB3159398 Jun 14, 2016
Windows Server 2012 R2 KB3159398 Jun 14, 2016
Windows Server 2012 R2 (Server Core installation) KB3159398 Jun 14, 2016
Windows Vista Service Pack 2 KB3159398 Jun 14, 2016
Windows Vista x64 Edition Service Pack 2 KB3159398 Jun 14, 2016