On vulnerable versions of Windows the alpc endpoint method SchRpcSetSecurity implemented by the task scheduler service can be used to write arbitrary DACLs to .job files located in c:windowstasks because the scheduler does not use impersonation when checking this location. Since users can create files in the c:windowstasks folder, a hardlink can be created to a file the user has read access to. After creating a hardlink, the vulnerability can be triggered to set the DACL on the linked file. WARNING: The PrintConfig.dll (%windir%system32driverstorfilerepositoryprnms003*) on the target host will be overwritten when the exploit runs. This module has been tested against Windows 10 Pro x64.
https://govanguard.com/threat-center/wp-content/uploads/sites/3/2019/01/metasploit.png 150 150 govanguard https://govanguard.com/wp-content/uploads/2018/04/Header_Logo.png govanguard2018-09-13 18:00:002018-09-13 18:00:00Microsoft Windows ALPC Task Scheduler Local Privilege Elevation
Our Standard Office Hours
Monday – Friday: 8:00AM – 5:00PM EDT
Saturday – Sunday: Closed
Where to Find Us
Data Privacy Notice
- – All product names, logos, and brands are property of their respective owners.
- – The use of these names, logos, and brands is for identification purposes only and does not imply endorsement.
- – Content syndication and aggregation of public information is solely for the purpose of identifying information security trends, all syndicated content contains source links to the content creator website. All content is owned by it’s respective content creators.
- – If you are an owner of some content and want it to be removed, please email firstname.lastname@example.org