CVE-2020-15682 Other in Firefox

Medium 6.5 Published Updated

Attackers could spoof external protocol prompts by associating them with uncontrolled origins, tricking users into launching malicious applications.

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-2020-15682?

CVE-2020-15682 is a medium-severity vulnerability in Mozilla Firefox, published on 22 Oct 2020. 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

When a link to an external protocol was clicked, a prompt was presented that allowed the user to choose what application to open it in. An attacker could induce that prompt to be associated with an origin they didn't control, resulting in a spoofing attack. This was fixed by changing external protocol prompts to be tab-modal while also ensuring they could not be incorrectly associated with a different origin. This vulnerability affects Firefox < 82.

Weakness: CWE-346

Which versions are affected by CVE-2020-15682?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2020-15682?

Upgrade to a fixed version.

Is CVE-2020-15682 being exploited?

There is no known exploitation of CVE-2020-15682 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as GHSA-hx45-gw2r-332x, UBUNTU-CVE-2020-15682.

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