An elevation of privilege vulnerability exists in Windows Setup in the way it handles directories.
A locally authenticated attacker could run arbitrary code with elevated system privileges. After successfully exploiting the vulnerability, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
The security update addresses the vulnerability by ensuring Windows Setup properly handles directories.
No PoCs from references.
- https://github.com/eduardoacdias/Windows-Setup-EoP
- https://github.com/klinix5/Windows-Setup-EoP