CVE-2021-33338 Liferay Portal Layout Module and Liferay DXP Exposes the Cross-Site Request Forgery (CSRF) Token in URLs

High 7.5 Published Updated

Attackers can steal CSRF tokens from URLs to perform unauthorized actions on behalf of users in Liferay Portal.

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-2021-33338?

CVE-2021-33338 is a high-severity vulnerability in Liferay Digital Experience Platform, published on 4 Aug 2021. 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 Layout module in Liferay Portal 7.1.0 through 7.3.2, and Liferay DXP 7.1 before fix pack 19, and 7.2 before fix pack 6, exposes the CSRF token in URLs, which allows man-in-the-middle attackers to obtain the token and conduct Cross-Site Request Forgery (CSRF) attacks via the p_auth parameter.

Weakness: CWE-352

Which versions are affected by CVE-2021-33338?

6 open source packages ship an affected version, including com.liferay.portal:release.dxp.bom and com.liferay.portal:release.portal.bom. It affects 2 products.

PackageAffectedFixed in
com.liferay.portal:release.dxp.bom MavenFrom 7.1.07.1.10.fp19
com.liferay.portal:release.dxp.bom MavenFrom 7.1.07.1.10.fp19
com.liferay.portal:release.dxp.bom MavenFrom 7.2.07.2.10.fp6
com.liferay.portal:release.dxp.bom MavenFrom 7.2.07.2.10.fp6
com.liferay.portal:release.portal.bom MavenFrom 7.1.07.3.3
com.liferay.portal:release.portal.bom MavenFrom 7.1.07.3.3

Products include Liferay Digital Experience Platform, Liferay Liferay Portal.

How do I fix CVE-2021-33338?

Upgrade com.liferay.portal:release.dxp.bom to a fixed version for your release line: 7.1.10.fp19 or 7.2.10.fp6.

Is CVE-2021-33338 being exploited?

There is no known exploitation of CVE-2021-33338 in the wild and no public exploit code.

All Liferay Digital Experience Platform vulnerabilities

Sources

Also known as GHSA-4frg-rpx6-96qh.

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