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).
Published 2020-03-20 19:15:13
Updated 2025-02-04 20:15:39
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Execute code

Products affected by CVE-2020-7961

Threat overview for CVE-2020-7961

Top countries where our scanners detected CVE-2020-7961
Top open port discovered on systems with this issue 80
IPs affected by CVE-2020-7961 480
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2020-7961!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

CVE-2020-7961 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:
Liferay Portal Deserialization of Untrusted Data Vulnerability
CISA required action:
Apply updates per vendor instructions.
CISA description:
Liferay Portal contains a deserialization of untrusted data vulnerability that allows remote attackers to execute code via JSON web services.
Notes:
https://nvd.nist.gov/vuln/detail/CVE-2020-7961
Added on 2021-11-03 Action due date 2022-05-03

Exploit prediction scoring system (EPSS) score for CVE-2020-7961

97.52%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 100 %
Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2020-7961

  • Liferay Portal Java Unmarshalling via JSONWS RCE
    Disclosure Date: 2019-11-25
    First seen: 2020-04-26
    exploit/multi/http/liferay_java_unmarshalling
    This module exploits a Java unmarshalling vulnerability via JSONWS in Liferay Portal versions < 6.2.5 GA6, 7.0.6 GA7, 7.1.3 GA4, and 7.2.1 GA2 to execute code as the Liferay user. Tested against 7.2.0 GA1. Authors: - Markus Wulftange - Thomas Etrillard -

CVSS scores for CVE-2020-7961

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.5
HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
NIST
9.8
CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
134c704f-9b21-4f2e-91b3-4a467353bcc0 2025-02-04
9.8
CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
NIST

CWE ids for CVE-2020-7961

  • The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
    Assigned by:
    • 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
    • nvd@nist.gov (Primary)

References for CVE-2020-7961

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