CVE-2017-8563

Windows Elevation of Privilege Vulnerability

CVE-2017-8563 is fixed in 27 products on 1 platform, first by KB4025344, released July 11, 2017. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.

Urgent
CVSS
7.5
Important
Exploitation
More likely
Vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0718
94th percentile

<p>An elevation of privilege vulnerability exists in Microsoft Windows when a man-in-the-middle attacker is able to successfully forward an authentication request to a Windows LDAP server, such as a system running Active Directory Domain Services (AD DS) or Active Directory Lightweight Directory Services (AD LDS), which has been configured to require signing or sealing on incoming connections.</p> <p>The update addresses this vulnerability by incorporating support for Extended Protection for Authentication security feature, which allows the LDAP server to detect and block such forwarded authentication requests once enabled.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Windows 10 Version 1511 for 32-bit Systems 10586.1007 KB4025344 Jul 11, 2017
Windows 10 Version 1511 for x64-based Systems 10586.1007 KB4025344 Jul 11, 2017
Windows 10 Version 1607 for 32-bit Systems 14393.1480 KB4025339 Jul 11, 2017
Windows 10 Version 1607 for x64-based Systems 14393.1480 KB4025339 Jul 11, 2017
Windows 10 Version 1703 for 32-bit Systems 15063.483 KB4025342 Jul 11, 2017
Windows 10 Version 1703 for x64-based Systems 15063.483 KB4025342 Jul 11, 2017
Windows 10 for 32-bit Systems 10240.17488 KB4025338 Jul 11, 2017
Windows 10 for x64-based Systems 10240.17488 KB4025338 Jul 11, 2017
Windows 7 for 32-bit Systems Service Pack 1 KB4025341 Jul 11, 2017
Windows 7 for 32-bit Systems Service Pack 1 KB4025337 Jul 11, 2017
Windows 7 for x64-based Systems Service Pack 1 KB4025341 Jul 11, 2017
Windows 7 for x64-based Systems Service Pack 1 KB4025337 Jul 11, 2017
Windows 8.1 for 32-bit systems KB4025333 Jul 11, 2017
Windows 8.1 for 32-bit systems KB4025336 Jul 11, 2017
Windows 8.1 for x64-based systems KB4025333 Jul 11, 2017
Windows 8.1 for x64-based systems KB4025336 Jul 11, 2017
Windows RT 8.1 KB4025336 Jul 11, 2017
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 KB4025341 Jul 11, 2017
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 KB4025337 Jul 11, 2017
Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4025341 Jul 11, 2017
Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4025337 Jul 11, 2017
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4025341 Jul 11, 2017
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4025337 Jul 11, 2017
Windows Server 2008 for 32-bit Systems Service Pack 2 KB4025409 Jul 11, 2017
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) KB4025409 Jul 11, 2017
Windows Server 2008 for Itanium-Based Systems Service Pack 2 KB4025409 Jul 11, 2017
Windows Server 2008 for x64-based Systems Service Pack 2 KB4025409 Jul 11, 2017
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) KB4025409 Jul 11, 2017
Windows Server 2012 KB4025343 Jul 11, 2017
Windows Server 2012 KB4025331 Jul 11, 2017
Windows Server 2012 (Server Core installation) KB4025343 Jul 11, 2017
Windows Server 2012 (Server Core installation) KB4025331 Jul 11, 2017
Windows Server 2012 R2 KB4025333 Jul 11, 2017
Windows Server 2012 R2 KB4025336 Jul 11, 2017
Windows Server 2012 R2 (Server Core installation) KB4025333 Jul 11, 2017
Windows Server 2012 R2 (Server Core installation) KB4025336 Jul 11, 2017
Windows Server 2016 14393.1480 KB4025339 Jul 11, 2017
Windows Server 2016 (Server Core installation) 14393.1480 KB4025339 Jul 11, 2017