Vulnerability Details : CVE-2023-36672
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.
Products affected by CVE-2023-36672
- cpe:2.3:a:clario:vpn:*:*:*:*:*:macos:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-36672
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 26 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-36672
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.7
|
MEDIUM | CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
2.1
|
3.6
|
NIST |
CWE ids for CVE-2023-36672
-
The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.Assigned by: nvd@nist.gov (Primary)
References for CVE-2023-36672
-
https://mullvad.net/de/blog/2023/8/9/response-to-tunnelcrack-vulnerability-disclosure/
Response to "TunnelCrack" vulnerability disclosure - Blog | Mullvad VPNThird Party Advisory
-
https://clario.co/vpn-for-mac/
Download VPN for Mac with Advanced Security Features | ClarioProduct
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https://tunnelcrack.mathyvanhoef.com/details.html
TunnelCrack: Widespread design flaws in VPN clientsExploit;Third Party Advisory
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https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0015
Security Advisory
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