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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities
NOTICE UPDATED - April, 25th 2024

NIST has updated the NVD program announcement page with additional information regarding recent concerns and the temporary delays in enrichment efforts.

CVE-2023-36672 Detail

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 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.


Severity

 


CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  5.7 MEDIUM
Vector:  CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://clario.co/vpn-for-mac/ Product 
https://mullvad.net/de/blog/2023/8/9/response-to-tunnelcrack-vulnerability-disclosure/ Third Party Advisory 
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0015
https://tunnelcrack.mathyvanhoef.com/details.html Exploit  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-319 Cleartext Transmission of Sensitive Information cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-36672
NVD Published Date:
08/09/2023
NVD Last Modified:
10/31/2023
Source:
MITRE