CVE-2021-41024 Path traversal in Fortinet FortiOS

What is CVE-2021-41024?

CVE-2021-41024 is a high-severity path traversal vulnerability in Fortinet Fortios, published on 8 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A relative path traversal [CWE-23] vulnerabiltiy in FortiOS versions 7.0.0 and 7.0.1 and FortiProxy verison 7.0.0 may allow an unauthenticated, unauthorized attacker to inject path traversal character sequences to disclose sensitive information of the server via the GET request of the login page.

Weakness: CWE-22

Which versions are affected by CVE-2021-41024?

It affects 2 products.

Products include Fortinet Fortios, Fortinet Fortiproxy.

How do I fix CVE-2021-41024?

No fix has been published for CVE-2021-41024 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2021-41024 being exploited?

There is no known exploitation of CVE-2021-41024 in the wild and no public exploit code.

Other vulnerabilities in Fortinet Fortios

• CVE-2024-23113 Fortinet Multiple Products Format String Exploited Critical 9.8
• CVE-2022-40684 Fortinet Multiple Products Authentication Bypass Exploited Critical 9.8
• CVE-2024-55591 Fortinet FortiOS and FortiProxy Authentication Bypass Exploited Critical 9.6
• CVE-2024-21762 Fortinet FortiOS Out-of-Bound Write Exploited Critical 9.6
• CVE-2022-42475 Fortinet FortiOS Heap-Based Buffer Overflow Exploited Critical 9.3

All Fortinet Fortios vulnerabilities

Sources

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

Also known as GHSA-ff2w-m935-v55x.