Is CVE-2020-7961 exploited in the wild?

Yes. CVE-2020-7961 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.

How severe is CVE-2020-7961?

Critical severity, with a CVSS score of 3.1, published 24 May 2022.

Which products and versions are affected?

com.liferay.portal:com.liferay.portal.kernel (Maven) ECOSYSTEM:introduced=0,fixed=4.35.3.

Is there a fix for CVE-2020-7961?

Yes. com.liferay.portal:com.liferay.portal.kernel (Maven): upgrade to 4.35.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2020-7961 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2020-7961?

Check whether you run Liferay Portal or com.liferay.portal:com.liferay.portal.kernel (Maven) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2020-7961: Deserialization of Untrusted Data in Liferay Portal

CVE-2020-7961 · Severity: critical · CVSS 3.1 · Exploited in the wild · Published 2022-05-24

Liferay Portal contains a deserialization of untrusted data vulnerability in its JSON web services (JSONWS). Remote attackers can exploit this to execute arbitrary code on the server without authentication.

Technologies: Liferay Portal, com.liferay.portal:com.liferay.portal.kernel (Maven). Vendors: Liferay, Maven.

Quick answers

Is CVE-2020-7961 exploited in the wild?: Yes. CVE-2020-7961 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.
How severe is CVE-2020-7961?: Critical severity, with a CVSS score of 3.1, published 24 May 2022.
Which products and versions are affected?: com.liferay.portal:com.liferay.portal.kernel (Maven) ECOSYSTEM:introduced=0,fixed=4.35.3.
Is there a fix for CVE-2020-7961?: Yes. com.liferay.portal:com.liferay.portal.kernel (Maven): upgrade to 4.35.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2020-7961 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2020-7961?: Check whether you run Liferay Portal or com.liferay.portal:com.liferay.portal.kernel (Maven) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

com.liferay.portal:com.liferay.portal.kernel (Maven): upgrade to 4.35.3 or later

# set com.liferay.portal:com.liferay.portal.kernel to 4.35.3 in your pom.xml or build.gradle

Affected products

Liferay Liferay Portal prior to 7.2.1 CE GA2

Identifiers

CVE-2020-7961
GHSA-w7pm-cc4v-f3g8

Timeline

2020-03-20: disclosed: Approximate date based on CVE ID and vendor advisory timeline
2021-11-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
2021-11-03: advisory: NVD publication date
2021-01-19: exploited: Reported as leveraged in the 'FreakOut' botnet campaign

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