CVE-2020-7961 KEV EXPLOIT
9.8
CRITICAL · CVSS 3.1 · EPSS 99.9% (pctl 100)
Patch first
On CISA KEV — known exploited in the wild, due 2022-05-03.
Description
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).
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 99.91% — more likely to be exploited than 100% of all CVEs |
| Weakness | CWE-502 |
| On CISA KEV | yes — remediate by 2022-05-03 |
| Public exploit | yes |
| Published | 2020-03-20 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Liferay Portal Deserialization of Untrusted Data Vulnerability |
|---|---|
| Added | 2021-11-03 |
| Due | 2022-05-03 |
| Vendor / product | Liferay / Liferay Portal |
| Ransomware use | none reported |
Affected (1)
| Vendor | Product |
|---|---|
| liferay | liferay portal |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Liferay Portal - Java Unmarshalling via JSONWS RCE (Metasploit) | 2020-04-16 |
References
- 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://portal.liferay.dev/learn/security/known-vulnerabilities
- https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/117954271
- https://research.checkpoint.com/2021/freakout-leveraging-newest-vulnerabilities-for-creating-a-botnet/
- 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://portal.liferay.dev/learn/security/known-vulnerabilities
- https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/117954271
- https://research.checkpoint.com/2021/freakout-leveraging-newest-vulnerabilities-for-creating-a-botnet/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-7961
→ the Explorer · watch your stack · NVD