CVE-2021-43067 Information disclosure in Fortinet FortiAuthenticator

What is CVE-2021-43067?

CVE-2021-43067 is a high-severity vulnerability in Fortinet FortiAuthenticator, published on 8 Dec 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

A exposure of sensitive information to an unauthorized actor in Fortinet FortiAuthenticator version 6.4.0, version 6.3.2 and below, version 6.2.1 and below, version 6.1.2 and below, version 6.0.7 to 6.0.1 allows attacker to duplicate a target LDAP user 2 factors authentication token via crafted HTTP requests.

Weakness: CWE-200

Which versions are affected by CVE-2021-43067?

It affects 1 product.

Products include Fortinet Fortiauthenticator.

How do I fix CVE-2021-43067?

No fix has been published for CVE-2021-43067 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-43067 being exploited?

There is no known exploitation of CVE-2021-43067 in the wild and no public exploit code.

Other vulnerabilities in Fortinet FortiAuthenticator

• CVE-2026-44277 Missing authorization in FortiAuthenticator Critical 9.1
• CVE-2013-6990 Privilege escalation in n/a Critical 9.0
• CVE-2021-22124 Denial of service in Fortinet FortiSandbox, FortiAuthenticator High 7.5
• CVE-2015-1455 Hardcoded credentials in n/a High 7.5
• CVE-2025-53379 Information disclosure in FortiAuthenticator High 7.0

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-pxph-w77w-wjcr.