SB2021060120 - Improper certificate validation in Fortinet FortiGate



SB2021060120 - Improper certificate validation in Fortinet FortiGate

Published: June 1, 2021

Security Bulletin ID SB2021060120
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Improper certificate validation (CVE-ID: CVE-2021-24012)

The vulnerability allows a remote attacker to bypass authorization checks.

The vulnerability exists due to improper verification of the user certificate's chain of trust when connecting to SSL-VPN. A remote LDAP user with any certificate that is signed by a trusted Certificate Authority can connect to VPN server.

Remediation

Install update from vendor's website.