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CVE-2020-25744

Description

SaferVPN before 5.0.3.3 on Windows could allow low-privileged users to create or overwrite arbitrary files, which could cause a denial of service (DoS) condition, because a symlink from %LOCALAPPDATA%\SaferVPN\Log is followed.

POC

Reference

- https://medium.com/%40thebinary0x1/safervpn-for-windows-arbitrary-file-overwrite-dos-bdc88fdb5ead

- https://medium.com/@thebinary0x1/safervpn-for-windows-arbitrary-file-overwrite-dos-bdc88fdb5ead

- https://www.youtube.com/watch?v=0QdRJdA_aos

Github

- https://github.com/ARPSyndicate/cvemon