SB2023122132 - MitM attack in multiple ESET products
Published: December 21, 2023
Security Bulletin ID
SB2023122132
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Certificate Validation (CVE-ID: CVE-2023-5594)
The vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to improper validation of the server’s certificate chain in the SSL/TLS protocol scanning feature. An intermediate certificate signed using the MD5 or SHA1 algorithm was considered trusted, and thus the browser on a system with the ESET secure traffic scanning feature enabled could be caused to trust a site secured with such a certificate.
Remediation
Install update from vendor's website.