On Microsoft Windows, the NtSetCachedSigningLevel system call can be tricked by the operation of LUAFV to apply a cached signature to an arbitrary file leading to a bypass of code signing enforcement under UMCI with Device Guard.
On Microsoft Windows, the NtSetCachedSigningLevel system call can be tricked by the operation of LUAFV to apply a cached signature to an arbitrary file leading to a bypass of code signing enforcement under UMCI with Device Guard.