CVE-2023-36672
MediumCVSS 5.7Exploitation Probability (EPSS)
Low risk48th percentile - higher than 48% of all known CVEs
Summary
An issue was discovered in the Clario VPN client through 5.9.1.1662 for macOS, which insecurely configures the operating system, resulting in local network traffic being sent in plaintext outside the VPN tunnel. This allows an adversary to trick the victim into sending arbitrary IP traffic in plaintext.
Risk Assessment
The organization is at risk of data leakage, as local traffic may be intercepted by third parties, posing a risk of confidential information loss.
Recommendation
It is recommended to update the Clario VPN client to the latest version and review the network configuration to ensure that local traffic is properly secured.
Original NVD description (English source)
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.