CVE-2023-36671: Medium severity clario vpn vulnerability
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.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2023-36671?
CVE-2023-36671 is an issue discovered in the Clario VPN client for macOS where the VPN client insecurely configures the operating system, allowing IP traffic to the VPN server's IP address to be sent in plaintext outside the VPN tunnel.
What is the severity of CVE-2023-36671?
The severity of CVE-2023-36671 is medium with a CVSS score of 6.3.
How does CVE-2023-36671 impact Clario VPN client for macOS?
CVE-2023-36671 impacts Clario VPN client for macOS by insecurely configuring the operating system, exposing IP traffic to the VPN server's IP address outside the VPN tunnel in plaintext.
What is the affected software version of CVE-2023-36671?
The affected software version of CVE-2023-36671 is Clario VPN client for macOS up to version 5.9.1.1662.
How can I fix CVE-2023-36671?
To fix CVE-2023-36671, it is recommended to update the Clario VPN client for macOS to a version that addresses this vulnerability.