CVE-2017-3894 Cross-site scripting in BES12

Medium 6.1 Published 10 May 2017 Updated 5 Aug 2024

Attackers can execute malicious scripts in the context of a Management Console administrator via stored XSS in BlackBerry Unified Endpoint Manager.

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-2017-3894?

CVE-2017-3894 is a medium-severity cross-site scripting vulnerability in BlackBerry BES12, published on 10 May 2017. 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 stored cross site scripting vulnerability in the Management Console of BlackBerry Unified Endpoint Manager version 12.6.1 and earlier, and all versions of BES12, allows attackers to execute actions in the context of a Management Console administrator by uploading a malicious script and then persuading a target administrator to view the specific location of the malicious script within the Management Console.

Weakness: CWE-79

Which versions are affected by CVE-2017-3894?

It affects 2 products.

Products include Blackberry Enterprise Service, Blackberry Unified Endpoint Manager.

How do I fix CVE-2017-3894?

No fix has been published for CVE-2017-3894 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-2017-3894 being exploited?

There is no known exploitation of CVE-2017-3894 in the wild and no public exploit code.

Sources

Also known as GHSA-pwh9-jfx5-xfp8.