CVE-2023-6867 Other in Firefox

Medium 6.1 Published Updated

Attackers can bypass clickjacking protections in Firefox by timing clicks to coincide with permission prompt appearances, tricking users into granting permissions.

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-2023-6867?

CVE-2023-6867 is a medium-severity vulnerability in Debian Debian Linux, published on 19 Dec 2023. 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

The timing of a button click causing a popup to disappear was approximately the same length as the anti-clickjacking delay on permission prompts. It was possible to use this fact to surprise users by luring them to click where the permission grant button would be about to appear. This vulnerability affects Firefox ESR < 115.6 and Firefox < 121.

Weakness: CWE-1021

Which versions are affected by CVE-2023-6867?

It affects 3 products.

Products include Debian Debian Linux, Mozilla Firefox, Mozilla Firefox Esr.

How do I fix CVE-2023-6867?

Upgrade to a fixed version.

Is CVE-2023-6867 being exploited?

There is no known exploitation of CVE-2023-6867 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2023-6867, GHSA-2mpv-2j92-5mm4, UBUNTU-CVE-2023-6867.

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