CVE-2012-3382 Cross-site scripting in n/a

Medium 4.3 Published 12 Jul 2012 Updated 6 Aug 2024

Remote attackers can inject arbitrary web script or HTML via crafted file names in Mono's HttpForbiddenHandler, requiring user interaction to execute.

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: Available

What is CVE-2012-3382?

CVE-2012-3382 is a medium-severity cross-site scripting vulnerability in n/a, published on 12 Jul 2012. 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

Cross-site scripting (XSS) vulnerability in the ProcessRequest function in mcs/class/System.Web/System.Web/HttpForbiddenHandler.cs in Mono 2.10.8 and earlier allows remote attackers to inject arbitrary web script or HTML via a file with a crafted name and a forbidden extension, which is not properly handled in an error message.

Weakness: CWE-79

Which versions are affected by CVE-2012-3382?

It affects 1 product.

Products include Mono Mono.

How do I fix CVE-2012-3382?

Upgrade to a fixed version.

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-2012-3382 being exploited?

There is no known exploitation of CVE-2012-3382 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2012-3382, DSA-2512-1, GHSA-hfwc-qwvw-crw5.