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Category:   OS (Microsoft)  >   Windows DLL (Any) Vendors:   Microsoft
Windows AppContainer, Named Pipe File System, and Storage Services Flaws Let Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1040379
SecurityTracker URL:  http://securitytracker.com/id/1040379
CVE Reference:   CVE-2018-0821, CVE-2018-0823, CVE-2018-0826   (Links to External Site)
Date:  Feb 13 2018
Impact:   Root access via local system, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2016, 10, 10 Version 1511, 10 Version 1607, 10 Version 1703, 10 Version 1709
Description:   Several vulnerabilities were reported in Windows AppContainer, Named Pipe File System, and Storage Services. A local user can obtain elevated privileges on the target system.

A local user can run a specially crafted application to trigger a constrained impersonation error in AppContainer and run processes with elevated privileges on the target system [CVE-2018-0821].

A local user can run a specially crafted application to trigger an object handling error in Named Pipe File System and run processes with elevated privileges on the target system [CVE-2018-0823].

A local user can run a specially crafted application to trigger an object memory handling error in Storage Services and run processes with elevated privileges on the target system [CVE-2018-0826].

James Forshaw of Google Project Zero reported these vulnerabilities.

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-2018-0821
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0823
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0826

Vendor URL:  portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0821 (Links to External Site)
Cause:   Access control error

Message History:   None.


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