CVE-2018-13375 Cross-site scripting in FortiAnalyzer

Medium 6.1 Published 28 May 2019 Updated 25 Oct 2024

Attackers can inject malicious scripts via DHCP hostname parameters, leading to script execution when administrators view logs in FortiAnalyzer or FortiManager.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2018-13375?

CVE-2018-13375 is a medium-severity cross-site scripting vulnerability in Fortinet Fortianalyzer, published on 28 May 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

An Improper Neutralization of Script-Related HTML Tags in Fortinet FortiAnalyzer 5.6.0 and below and FortiManager 5.6.0 and below allows an attacker to send DHCP request containing malicious scripts in the HOSTNAME parameter. The malicious script code is executed while viewing the logs in FortiAnalyzer and FortiManager (with FortiAnalyzer feature enabled).

Weakness: CWE-79

Which versions are affected by CVE-2018-13375?

It affects 2 products.

Products include Fortinet Fortianalyzer, Fortinet Fortimanager.

How do I fix CVE-2018-13375?

No fix has been published for CVE-2018-13375 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2018-13375 being exploited?

There is no known exploitation of CVE-2018-13375 in the wild and no public exploit code.

All Fortinet Fortianalyzer vulnerabilities

Sources

Also known as GHSA-ffmh-82q7-w4gf.