CVE-2020-12812
KEVFortinet FortiOS SSL VPN Improper Authentication Vulnerability
9.8
CriticalPublished:
Last updated:
Source:psirt@fortinet.com
Analyzed
Weakness (CWE)
CVSS Vector
v3.1- Attack Vector
- Network
- Attack Complexity
- Low
- Privileges Required
- None
- User Interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Description
An improper authentication vulnerability in SSL VPN in FortiOS 6.4.0, 6.2.0 to 6.2.3, 6.0.9 and below may result in a user being able to log in successfully without being prompted for the second factor of authentication (FortiToken) if they changed the case of their username.
References
psirt@fortinet.com
https://fortiguard.com/psirt/FG-IR-19-283af854a3a-2127-422b-91ae-364da2661108
https://fortiguard.com/psirt/FG-IR-19-283134c704f-9b21-4f2e-91b3-4a467353bcc0
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-12812