Cleartext Transmission of Sensitive Information Affecting openconnect package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.07% (32nd percentile)

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  • Snyk IDSNYK-UBUNTU2004-OPENCONNECT-6218525
  • published31 Jan 2024
  • disclosed9 Aug 2023

Introduced: 9 Aug 2023

CVE-2023-36671  (opens in a new tab)
CWE-319  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:20.04 openconnect.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openconnect package and not the openconnect package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

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.

CVSS Scores

version 3.1