Liferay · Liferay Portal
CVE-2020-7961
Liferay Portal Deserialization of Untrusted Data Vulnerability
Exploited in attacks
Critical 9.8 Attack chance: 99.9%
What it is
Deserialization of Untrusted Data in Liferay Portal prior to 7.2.1 CE GA2 allows remote attackers to execute arbitrary code via JSON web services (JSONWS).
CISA: Liferay Portal contains a deserialization of untrusted data vulnerability that allows remote attackers to execute code via JSON web services.
What to do
Apply updates per vendor instructions.
Deadline for US federal agencies: May 3, 2022
- Added to the CISA list
- November 3, 2021
- Published
- March 20, 2020
- Severity
- Critical 9.8 CVSS 3.1
- Chance of attacks in the next 30 days (EPSS)
- 99.9% in the top 0.1% of all known vulnerabilities
- Weakness
- CWE-502
- More details
- NVD · CVE.org · CISA
All references (5)
- https://portal.liferay.dev/learn/security/known-vulnerabilities
- https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/117…
- http://packetstormsecurity.com/files/157254/Liferay-Portal-Java-Unmarshalling-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/158392/Liferay-Portal-Remote-Code-Execution.html
- https://research.checkpoint.com/2021/freakout-leveraging-newest-vulnerabilities-for-creating-a-botnet/
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.