PYSEC-2023-321

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/wireguard/PYSEC-2023-321.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2023-321
Aliases
Published
2023-08-09T23:15:10.007Z
Modified
2026-05-21T15:00:33.766466434Z
Severity
  • 5.7 (Medium) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
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.

References

Affected packages

PyPI / wireguard

Package

Name
wireguard
View open source insights on deps.dev
Purl
pkg:pypi/wireguard

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Last affected
0.5.3

Affected versions

0.*
0.1.0
0.1.1
0.1.2
0.1.3
0.1.4
0.1.5
0.1.6
0.2.0
0.2.1
0.2.2
0.2.3
0.2.4
0.2.5
0.3.0
0.4.0

Database specific

source 
"https://github.com/pypa/advisory-database/blob/main/vulns/wireguard/PYSEC-2023-321.yaml"