CVE-2018-1147 Cross-site scripting in Tenable Nessus

Medium 5.4 Published Updated

Remote authenticated attackers can execute arbitrary scripts in administrators' browsers via malicious .nessus files or settings.

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-2018-1147?

CVE-2018-1147 is a medium-severity cross-site scripting vulnerability in Tenable Nessus, published on 18 May 2018. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

In Nessus before 7.1.0, a XSS vulnerability exists due to improper input validation. A remote authenticated attacker could create and upload a .nessus file, which may be viewed by an administrator allowing for the execution of arbitrary script code in a user's browser session. In other scenarios, XSS could also occur by altering variables from the Advanced Settings.

Weakness: CWE-79

Which versions are affected by CVE-2018-1147?

It affects 1 product.

Products include Tenable Nessus.

How do I fix CVE-2018-1147?

No fix has been published for CVE-2018-1147 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-2018-1147 being exploited?

There is no known exploitation of CVE-2018-1147 in the wild and no public exploit code.

All Tenable Nessus vulnerabilities

Sources

Also known as GHSA-wp62-w6xh-5jjc.

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