CVE-2020-12812 is a critical improper authentication vulnerability in FortiOS SSL VPN, affecting versions 6.4.0, 6.2.0-6.2.3, and 6.0.9 and below. This flaw allows attackers to bypass FortiToken multi-factor authentication by manipulating the case of a user's username. With a CVSS score of 9.8, it presents a critical risk due to its network-based attack vector, low complexity, and potential for complete compromise of confidentiality, integrity, and availability. This vulnerability is actively exploited, including in known ransomware campaigns, and has garnered significant community discussion and media coverage, despite a lack of public exploit code in Metasploit, Nuclei, or ExploitDB.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 6.0.10CPE matchmatch criteria | cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* | ||
>= 6.2.0, < 6.2.4CPE matchmatch criteria | cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* | ||
6.4.0CPE matchmatch criteria | cpe:2.3:o:fortinet:fortios:6.4.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.