CVE-2023-36671
low-risk
Published 2023-08-09
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.
Do I need to act?
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0.03% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.3/10
Medium
LOCAL
/ HIGH complexity
Affected Products (1)
Vpn
Affected Vendors
References (6)
Product
https://clario.co/vpn-for-mac/
Product
https://clario.co/vpn-for-mac/
21
/ 100
low-risk
Severity
16/34 · Moderate
Exploitability
0/34 · Minimal
Exposure
5/34 · Minimal