CVE-2020-15842 : Vulnerability Insights and Analysis
Learn about CVE-2020-15842 affecting Liferay Portal and DXP versions, allowing attackers to execute arbitrary code via insecure deserialization. Find mitigation steps and preventive measures here.
Liferay Portal before 7.3.0, and Liferay DXP 7.0 before fix pack 90, 7.1 before fix pack 17, and 7.2 before fix pack 5, allows man-in-the-middle attackers to execute arbitrary code via crafted serialized payloads, because of insecure deserialization.
Understanding CVE-2020-15842
This CVE involves a vulnerability in Liferay Portal and Liferay DXP versions that can be exploited by attackers to execute arbitrary code.
What is CVE-2020-15842?
The vulnerability in Liferay Portal and Liferay DXP versions allows man-in-the-middle attackers to execute arbitrary code through insecure deserialization of crafted serialized payloads.
The Impact of CVE-2020-15842
The impact of this vulnerability is rated as HIGH with a CVSS base score of 8.1. It affects confidentiality, integrity, and availability, with no privileges required for exploitation.
Technical Details of CVE-2020-15842
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability in Liferay Portal and Liferay DXP versions allows attackers to execute arbitrary code through insecure deserialization of crafted serialized payloads.
Affected Systems and Versions
- Liferay Portal before 7.3.0
- Liferay DXP 7.0 before fix pack 90
- Liferay DXP 7.1 before fix pack 17
- Liferay DXP 7.2 before fix pack 5
Exploitation Mechanism
The vulnerability can be exploited by man-in-the-middle attackers through crafted serialized payloads.
Mitigation and Prevention
To address CVE-2020-15842, follow these mitigation steps:
Immediate Steps to Take
- Apply the necessary security patches provided by Liferay for the affected versions.
- Monitor network traffic for any signs of exploitation.
- Implement network segmentation to limit the impact of potential attacks.
Long-Term Security Practices
- Regularly update and patch all software and applications to prevent vulnerabilities.
- Conduct security training for employees to raise awareness of potential threats.
Patching and Updates
- Ensure all Liferay Portal and Liferay DXP installations are updated to versions that contain the necessary security fixes.