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Category:   OS (Microsoft)  >   Microsoft Task Scheduler Vendors:   Microsoft
Microsoft Task Scheduler Lets Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1031893
SecurityTracker URL:  http://securitytracker.com/id/1031893
CVE Reference:   CVE-2015-0084   (Links to External Site)
Date:  Mar 10 2015
Impact:   User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 7 SP1, 2008 R2 SP1, 8, 8.1, 2012, 2012 R2, RT, RT 8.1; and prior service packs
Description:   A vulnerability was reported in Microsoft Task Scheduler. A local user can obtain elevated privileges on the target system.

Windows Task Scheduler does not properly validate and enforce impersonation levels. A local user with limited privileges can bypass access control list (ACL) settings and run privileged executables.

James Forshaw of Google Project Zero reported this vulnerability.

Impact:   A local user can run privileged executable on the target system.
Solution:   The vendor has issued a fix.

A patch matrix is available in the vendor's advisory.

The Microsoft advisory is available at:

https://technet.microsoft.com/library/security/ms15-028

Vendor URL:  technet.microsoft.com/library/security/ms15-028 (Links to External Site)
Cause:   Access control error

Message History:   None.


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