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CVE-2023-36672

Published: Aug 9, 2023Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-319
NVD MITRE
5.7CVSSMEDIUM
EPSS Score
0.7%
Top 52.4%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:AAC:LPR:NUI:RS:UC:HI:NA:N
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-319

Affected Products

n/an/a
vpnclario
SaaS
Security Products / secure-gateway-vpn
AnyConnect Secure Mobility ClientCisco Systems Inc.
On-premDesktop App
Networking Infrastructure
Cisco Secure ClientCisco Systems Inc.
On-prem
Networking Infrastructure / router-switch
ClarioClario Tech Limited
SaaS
Security Products / secure-gateway-vpn
clariocommercialSecurity Productsaka clario vpn
cisco systems inc.commercialUSNetworking Infrastructureaka cisco systems, cisco
clario tech limitedcommercialSecurity Productsaka clario tech ltd

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Collection
Credential Access
View detailed technique mapping

References

https://clario.co/vpn-for-mac/
clario.co
https://tunnelcrack.mathyvanhoef.com/details.html
tunnelcrack.mathyvanhoef.com
https://mullvad.net/de/blog/2023/8/9/response-to-tunnelcrack-vulnerability-disclosure/
mullvad.net
and 2 more references View all →

Timeline

Published
Aug 9, 2023
Last Updated
Nov 21, 2024

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