CVE-2021-24021 Cross-site scripting in Fortinet FortiAnalyzer

Medium 4.3 Published Updated

Remote authenticated attackers can execute stored cross-site scripting attacks via Logview column settings in FortiAnalyzer, potentially compromising user sessions.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-24021?

CVE-2021-24021 is a medium-severity cross-site scripting vulnerability in Fortinet Fortianalyzer, published on 6 Oct 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An improper neutralization of input vulnerability [CWE-79] in FortiAnalyzer versions 6.4.3 and below, 6.2.7 and below and 6.0.10 and below may allow a remote authenticated attacker to perform a stored cross site scripting attack (XSS) via the column settings of Logview in FortiAnalyzer, should the attacker be able to obtain that POST request, via other, hypothetical attacks.

Weakness: CWE-79

Which versions are affected by CVE-2021-24021?

It affects 1 product.

Products include Fortinet Fortianalyzer.

How do I fix CVE-2021-24021?

No fix has been published for CVE-2021-24021 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-2021-24021 being exploited?

There is no known exploitation of CVE-2021-24021 in the wild and no public exploit code.

All Fortinet Fortianalyzer vulnerabilities

Sources

Also known as GHSA-v56v-j2pc-w577.

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