Deserialization of Untrusted Data in Liferay Enterprise Portal

1) Deserialization of Untrusted Data

EUVDB-ID: #VU35194

Risk: High

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-16891

CWE-ID: CWE-502 - Deserialization of Untrusted Data

Exploit availability: No

Description

The vulnerability allows a remote authenticated user to execute arbitrary code.

Liferay Portal CE 6.2.5 allows remote command execution because of deserialization of a JSON payload.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Liferay Enterprise Portal: 6.1.0 - 7.2.0

CPE2.3

• cpe:2.3:a:liferay:liferay_portal:6.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:liferay:liferay_portal:6.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:liferay:liferay_portal:6.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:liferay:liferay_portal:6.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:liferay:liferay_portal:6.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:liferay:liferay_portal:6.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:liferay:liferay_portal:6.2.3:*:*:*:*:*:*:*
• cpe:2.3:a:liferay:liferay_portal:6.2.4:*:*:*:*:*:*:*
• cpe:2.3:a:liferay:liferay_portal:6.2.5:*:*:*:*:*:*:*
• cpe:2.3:a:liferay:liferay_portal:7.0.0:*:*:*:*:*:*:*

External links

https://sec.vnpt.vn/2019/09/liferay-deserialization-json-deserialization-part-4/
https://www.liferay.com/downloads-community
https://www.youtube.com/watch?v=DjMEfQW3bf0

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.