CVE-2020-12480 CSRF in Play Framework

Medium 6.5 Published Updated

Attackers can bypass CSRF protection in Play Framework by sending malformed CORS requests with unparseable content types.

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-2020-12480?

CVE-2020-12480 is a medium-severity vulnerability in n/a, published on 17 Aug 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

In Play Framework 2.6.0 through 2.8.1, the CSRF filter can be bypassed by making CORS simple requests with content types that contain parameters that can't be parsed.

Weakness: CWE-352

Which versions are affected by CVE-2020-12480?

4 open source packages ship an affected version, including com.typesafe.play:play_2.12. It affects 1 product.

PackageAffectedFixed in
com.typesafe.play:play_2.12 MavenAll versions2.7.5
com.typesafe.play:play_2.12 MavenAll versions2.7.5
com.typesafe.play:play_2.12 MavenFrom 2.8.02.8.2
com.typesafe.play:play_2.12 MavenFrom 2.8.02.8.2

Products include Lightbend Play Framework.

How do I fix CVE-2020-12480?

Upgrade com.typesafe.play:play_2.12 to a fixed version for your release line: 2.7.5 or 2.8.2.

Is CVE-2020-12480 being exploited?

There is no known exploitation of CVE-2020-12480 in the wild and no public exploit code.

Sources

Also known as GHSA-cf8j-64h9-6q58.

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