CVE-2020-12812
CriticalActively exploited (CISA KEV)Known to be used in ransomware campaigns
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.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Fortinet FortiOS
PublishedJul 24, 2020
First seenJul 24, 2020
Added to KEVNov 3, 2021
Weakness typeCWE-287Improper authentication
How to fix
CISA required action
Apply updates per vendor instructions.
CISA due date: May 3, 2022Update
- fortinet fortios6.0.10, 6.2.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| fortinet fortios | v < 6.0.10, 6.2.0 ≤ v < 6.2.4, 6.4.0 | 6.0.10, 6.2.4 |
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