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Category:   OS (Microsoft)  >   Windows Kernel Vendors:   Microsoft
Windows Kernel 'Win32k.sys' Lets Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1042140
SecurityTracker URL:  http://securitytracker.com/id/1042140
CVE Reference:   CVE-2018-8589   (Links to External Site)
Updated:  Nov 14 2018
Original Entry Date:  Nov 14 2018
Impact:   Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 7 SP1, 2008 R2 SP1, 2008 SP2
Description:   A vulnerability was reported in Windows Kernel. A local user can obtain elevated privileges on the target system.

A local user can run a specially crafted application to 'win32k.sys' to execute arbitrary commands on the target system with elevated privileges.

Some additional technical details are available at:

https://securelist.com/a-new-exploit-for-zero-day-vulnerability-cve-2018-8589/88845/

Boris Larin (Oct0xor) of Kaspersky Lab and Igor Soumenkov (2igosha) of Kaspersky Lab reported this vulnerability.

Impact:   A local user can obtain elevated privileges on the target system.
Solution:   The vendor has issued a fix.

The Microsoft advisories are available at:

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8589

Vendor URL:  portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8589 (Links to External Site)
Cause:   Access control error

Message History:   None.


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