CVE-2015-7197 Security feature bypass in n/a

Medium 5.0 Published Updated

Remote attackers can bypass mixed-content restrictions in Firefox by exploiting improper WebSocket control in web workers via crafted JavaScript.

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-2015-7197?

CVE-2015-7197 is a medium-severity vulnerability in Mozilla Firefox, published on 5 Nov 2015. 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

Mozilla Firefox before 42.0 and Firefox ESR 38.x before 38.4 improperly control the ability of a web worker to create a WebSocket object, which allows remote attackers to bypass intended mixed-content restrictions via crafted JavaScript code.

Weakness: CWE-264

Which versions are affected by CVE-2015-7197?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2015-7197?

Upgrade to a fixed version.

Is CVE-2015-7197 being exploited?

There is no known exploitation of CVE-2015-7197 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as GHSA-q979-jwj6-64wj, UBUNTU-CVE-2015-7197.

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