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 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. This allows an adversary to trick the victim into sending plaintext traffic to the VPN server's IP address and thereby deanonymize the victim. NOTE: the tunnelcrack.mathyvanhoef.com website uses this CVE ID to refer more generally to "ServerIP attack for only traffic to the real IP address of the VPN server" 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://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://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0015
- https://tunnelcrack.mathyvanhoef.com/details.htmlExploitThird Party Advisory
FAQ
What is CVE-2023-36671?
CVE-2023-36671 is a vulnerability with a CVSS score of 6.3 (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 all IP traffic to the VPN server's IP address is sent...
How severe is CVE-2023-36671?
CVE-2023-36671 has been rated MEDIUM with a CVSS base score of 6.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-36671?
Check the references section above for vendor advisories and patch information. Affected products include: Clario Vpn.