Vulnerability Description
An issue was discovered in the Clario VPN client through 5.9.1.1662 for macOS. The VPN client insecurely configures the operating system such that traffic to the local network is sent in plaintext outside the VPN tunnel even if the local network is using a non-RFC1918 IP subnet. This allows an adversary to trick the victim into sending arbitrary IP traffic in plaintext outside the VPN tunnel. NOTE: the tunnelcrack.mathyvanhoef.com website uses this CVE ID to refer more generally to "LocalNet attack resulting in leakage of traffic in plaintext" rather than to only Clario.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Clario | Vpn | <= 5.9.1.1662 |
Related Weaknesses (CWE)
References
- https://clario.co/vpn-for-mac/Product
- https://mullvad.net/de/blog/2023/8/9/response-to-tunnelcrack-vulnerability-disclThird Party Advisory
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0015
- https://tunnelcrack.mathyvanhoef.com/details.htmlExploitThird Party Advisory
- https://clario.co/vpn-for-mac/Product
- https://mullvad.net/de/blog/2023/8/9/response-to-tunnelcrack-vulnerability-disclThird Party Advisory
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0015
- https://tunnelcrack.mathyvanhoef.com/details.htmlExploitThird Party Advisory
FAQ
What is CVE-2023-36672?
CVE-2023-36672 is a vulnerability with a CVSS score of 5.7 (MEDIUM). An issue was discovered in the Clario VPN client through 5.9.1.1662 for macOS. The VPN client insecurely configures the operating system such that traffic to the local network is sent in plaintext out...
How severe is CVE-2023-36672?
CVE-2023-36672 has been rated MEDIUM with a CVSS base score of 5.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-36672?
Check the references section above for vendor advisories and patch information. Affected products include: Clario Vpn.