CVE-2018-13382 Fortinet FortiOS and FortiProxy Improper Authorization

What is CVE-2018-13382?

CVE-2018-13382 is a critical missing authorization vulnerability in Fortinet Fortios, published on 4 Jun 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An Improper Authorization vulnerability in Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.0 to 5.6.8 and 5.4.1 to 5.4.10 and FortiProxy 2.0.0, 1.2.0 to 1.2.8, 1.1.0 to 1.1.6, 1.0.0 to 1.0.7 under SSL VPN web portal allows an unauthenticated attacker to modify the password of an SSL VPN web portal user via specially crafted HTTP requests

Weakness: CWE-863

Which versions are affected by CVE-2018-13382?

It affects 2 products.

Products include Fortinet Fortios, Fortinet Fortiproxy.

How do I fix CVE-2018-13382?

No fix has been published for CVE-2018-13382 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 10 Jul 2022.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2018-13382 being exploited?

Yes. Attackers have exploited CVE-2018-13382 in the wild since at least 10 Jan 2022, including in ransomware campaigns.

Public exploit code: 1 Exploit-DB entry and 3 proofs of concept on GitHub.

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-chg2-j3mj-m3rj.