Deserialization in Liferay Portal
CVE-2019-16891
Liferay Portal CE 6.2.5 allows remote command execution because of deserialization of a JSON payload.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.447 (98.7th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.457 · newest: 0.447 · change: -0.009
Affected products
- Liferay Portal — versions 6.1.0, 6.1.1, 6.1.2
Weakness classification (CWE)
Public proof-of-concept exploits
- d4ngkh04w/CVE-2019-16891
- rai0ffs3c/CVE-2019-16891-Liferay-deserialization-RCE
- AdeliaNitzsche/Java-Deserialization-Cheat-Sheet
- BrittanyKuhn/javascript-tutorial
- GrrrDog/Java-Deserialization-Cheat-Sheet
- HPT-Intern-Task-Submission/Liferay-JSON-Deserialization
- JoshMorrison99/my-nuceli-templates
- PalindromeLabs/Java-Deserialization-CVEs
- Y4tacker/JavaSec
- hrxknight/CVE-2019-16891-Liferay-deserialization-RCE
References
- www.liferay.com/downloads-community (Product, Release Notes)
- www.youtube.com/watch (Exploit)
- sec.vnpt.vn/2019/09/liferay-deserialization-json-deserialization-part-4/ (Exploit, Third Party Advisory)
- dappsec.substack.com/p/an-advisory-for-cve-2019-16891-from (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-16891?
- CVE-2019-16891 is a critical-severity vulnerability in Liferay Portal, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2019-10-04.
- How severe is CVE-2019-16891?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2019-16891 known to be exploited?
- 13 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.