#VU57025 Improper Certificate Validation in Squid - CVE-2021-41611

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Main Vulnerability Database Vulnerabilities #VU57025

#VU57025 Improper Certificate Validation in Squid - CVE-2021-41611

Published: October 4, 2021


Vulnerability identifier: #VU57025
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-41611
CWE-ID: CWE-295
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Squid
Software vendor:
Squid-cache.org

Description

The vulnerability allows a remote attacker to perform a MitM attack.

The vulnerability exists due to improper certificate validation when the TLS server certificate is signed by multiple CAs. A remote attacker can perform a mand-in-the-middle attack against proxy server users.


Remediation

Install updates from vendor's website.

External links