CVE-2020-28884 : Exploit Details and Defense Strategies

This CVE record pertains to an OS Command Injection vulnerability affecting Liferay Portal Server versions 7.3.5 GA6 and 7.2.0 GA1.

Understanding CVE-2020-28884

This vulnerability allows an administrator user to inject Groovy script to execute any OS command on the Liferay Portal Server.

What is CVE-2020-28884?

CVE-2020-28884 is an OS Command Injection vulnerability in Liferay Portal Server versions 7.3.5 GA6 and 7.2.0 GA1, enabling administrators to run Groovy scripts to execute OS commands.

The Impact of CVE-2020-28884

The vulnerability can be exploited by malicious actors to execute unauthorized OS commands on the affected Liferay Portal Server, potentially leading to unauthorized access or data manipulation.

Technical Details of CVE-2020-28884

Vulnerability Description

The vulnerability allows an administrator user to inject Groovy script to execute arbitrary OS commands on the Liferay Portal Server.

Affected Systems and Versions

Liferay Portal Server 7.3.5 GA6
Liferay Portal Server 7.2.0 GA1

Exploitation Mechanism

The exploit involves injecting Groovy scripts through the portal, enabling the execution of unauthorized OS commands.

Mitigation and Prevention

Immediate Steps to Take

Disable the ability for administrators to run Groovy scripts if not essential for operations.
Monitor and restrict administrator access to prevent unauthorized script execution.

Long-Term Security Practices

Regularly update and patch Liferay Portal Server to address known vulnerabilities.
Implement least privilege access controls to limit the impact of potential exploits.
Conduct security training for administrators on safe script execution practices.

Patching and Updates

Ensure that Liferay Portal Server is updated to the latest version that includes patches addressing the OS Command Injection vulnerability.