CVE-2020-12812

critical
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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

https://fortiguard.com/psirt/FG-IR-19-283

Details

Source: MITRE

Published: 2020-07-24

Updated: 2020-07-28

Type: CWE-287

Risk Information

CVSS v2

Base Score: 7.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 10

Severity: HIGH

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL

Tenable Plugins

View all (1 total)

IDNameProductFamilySeverity
141122Fortinet FortiOS < 6.0.10 / 6.2.x < 6.2.4 / 6.4.x < 6.4.1 Improper Authentication (FG-IR-19-283)NessusFirewalls
critical