CVE-2017-14190 Cross-site scripting in FortiOS

Medium 6.1 Published Updated

Attackers can inject arbitrary web script via malicious Host headers in FortiOS, potentially compromising user sessions and data.

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-2017-14190?

CVE-2017-14190 is a medium-severity cross-site scripting vulnerability in Fortinet Fortios, published on 29 Jan 2018. 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

A Cross-site Scripting vulnerability in Fortinet FortiOS 5.6.0 to 5.6.2, 5.4.0 to 5.4.7, 5.2 and earlier, allows attacker to inject arbitrary web script or HTML via maliciously crafted "Host" header in user HTTP requests.

Weakness: CWE-79

Which versions are affected by CVE-2017-14190?

It affects 1 product.

Products include Fortinet Fortios.

How do I fix CVE-2017-14190?

No fix has been published for CVE-2017-14190 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-2017-14190 being exploited?

There is no known exploitation of CVE-2017-14190 in the wild and no public exploit code.

All Fortinet Fortios vulnerabilities

Sources

Also known as GHSA-232m-xvr4-2347.

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