Local privilege escalation due to incorrect assignment of privileges of temporary files in the update mechanism of G DATA Management Server. This vulnerability allows a local, unprivileged attacker to escalate privileges on affected installations by placing a crafted ZIP archive in a globally writable directory, which gets unpacked in the context of SYSTEM and results in arbitrary file write.
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.