MEDIUM5.7
PYSEC-2023-321
Details
The WireGuard client 0.5.3 on Windows insecurely configures the operating system and firewall such that traffic to a local network that uses non-RFC1918 IP addresses is blocked. This allows an adversary to trick the victim into blocking IP traffic to selected IP addresses and services even while the VPN is enabled. NOTE: the tunnelcrack.mathyvanhoef.com website uses this CVE ID to refer more generally to "LocalNet attack resulting in the blocking of traffic" rather than to only WireGuard.
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Affected packages
PyPI/wireguard
Introduced in:
0No fixed version published yet for wireguard (pip). Pin to a known-safe version or switch to an alternative.