CVE-2021-4285 Nagios NCPA tail.html cross site scripting

Low 3.5 Published Updated

Remote attackers can execute arbitrary scripts in the Nagios NCPA web interface via a cross-site scripting vulnerability in the tail.html template.

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

What is CVE-2021-4285?

CVE-2021-4285 is a low-severity cross-site scripting vulnerability in Nagios NCPA, published on 27 Dec 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A vulnerability classified as problematic was found in Nagios NCPA. This vulnerability affects unknown code of the file agent/listener/templates/tail.html. The manipulation of the argument name leads to cross site scripting. The attack can be initiated remotely. Upgrading to version 2.4.0 is able to address this issue. The name of the patch is 5abbcd7aa26e0fc815e6b2b0ffe1c15ef3e8fab5. It is recommended to upgrade the affected component. VDB-216874 is the identifier assigned to this vulnerability.

Weakness: CWE-79

Which versions are affected by CVE-2021-4285?

It affects 1 product.

Products include Nagios Nagios Cross Platform Agent.

How do I fix CVE-2021-4285?

No fix has been published for CVE-2021-4285 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-2021-4285 being exploited?

There is no known exploitation of CVE-2021-4285 in the wild and no public exploit code.

Sources

Also known as GHSA-5899-hhfh-hw26.

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