SB2021060120 - Improper certificate validation in Fortinet FortiGate
Published: June 1, 2021
Security Bulletin ID
SB2021060120
CSH 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 vulnerability.
1) Improper certificate validation (CVE-ID: CVE-2021-24012)
CWE-ID: CWE-295 - Improper Certificate Validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
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.