An issue was discovered in Avira Phantom VPN through 2.23.1 for macOS. The VPN client insecurely configures the operating system such that all IP traffic to the VPN server's IP address is sent in plaintext outside the VPN tunnel, even if this traffic is not generated by the VPN client, while simultaneously using plaintext DNS to look up the VPN server's IP address. This allows an adversary to trick the victim into sending traffic to arbitrary IP addresses in plaintext outside the VPN tunnel. NOTE: the tunnelcrack.mathyvanhoef.com website uses this CVE ID to refer more generally to "ServerIP attack, combined with DNS spoofing, that can leak traffic to an arbitrary IP address" rather than to only Avira Phantom VPN.
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Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2023-08-09T00:00:00
Updated: 2024-08-02T16:52:54.021Z
Reserved: 2023-06-26T00:00:00
Link: CVE-2023-36673
Vulnrichment
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NVD
Status : Modified
Published: 2023-08-09T23:15:10.897
Modified: 2023-10-31T09:15:08.337
Link: CVE-2023-36673
Redhat
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