CVE-2016-9078 Open redirect in Firefox

High 8.8 Published Updated

Attackers can exploit HTTP redirections to data URLs to violate same-origin policies, allowing cross-origin cookie setting in Firefox.

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-2016-9078?

CVE-2016-9078 is a high-severity vulnerability in Mozilla Firefox, published on 11 Jun 2018. 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

Redirection from an HTTP connection to a "data:" URL assigns the referring site's origin to the "data:" URL in some circumstances. This can result in same-origin violations against a domain if it loads resources from malicious sites. Cross-origin setting of cookies has been demonstrated without the ability to read them. Note: This issue only affects Firefox 49 and 50. This vulnerability affects Firefox < 50.0.1.

Weakness: CWE-601

Which versions are affected by CVE-2016-9078?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2016-9078?

Upgrade to a fixed version.

Is CVE-2016-9078 being exploited?

There is no known exploitation of CVE-2016-9078 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as GHSA-97gg-j6v9-fvp7, UBUNTU-CVE-2016-9078.

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