CVE-2020-7961 is a vulnerability in Liferay Portal
Published on March 20, 2020
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).
Known Exploited Vulnerability
This Liferay Portal prior to 7.2.1 CE GA2 Remote Code Execution Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. 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).
The following remediation steps are recommended / required by May 3, 2022: Apply updates per vendor instructions.
Vulnerability Analysis
CVE-2020-7961 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors in an automatable fashion. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is a Marshaling, Unmarshaling Vulnerability?
The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid.
CVE-2020-7961 has been classified to as a Marshaling, Unmarshaling vulnerability or weakness.
Products Associated with CVE-2020-7961
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Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.