Copied files may not have the expected file permissions. This issue is fixed in Security Update 2021-002 Catalina, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. The issue was addressed with improved permissions logic.
No PoCs from references.
- https://github.com/ARPSyndicate/cvemon
- https://github.com/n0-traces/cve_monitor