CVE-2021-33334 : Exploit Details and Defense Strategies
Learn about CVE-2021-33334 affecting Liferay Portal & DXP. Remote attackers with specific permissions can exploit this flaw to access sensitive data. Find mitigation steps here.
A security vulnerability has been identified in the Dynamic Data Mapping module in Liferay Portal and Liferay DXP versions. Attackers with specific permissions can exploit this issue to access sensitive data.
Understanding CVE-2021-33334
This CVE highlights a flaw in the permission verification process within Liferay Portal and Liferay DXP, leading to unauthorized access.
What is CVE-2021-33334?
The Dynamic Data Mapping module in Liferay Portal 7.0.0 through 7.3.2, and Liferay DXP 7.0 before fix pack 94, 7.1 before fix pack 19, and 7.2 before fix pack 6, lacks proper user permission checks.
The Impact of CVE-2021-33334
Remote attackers equipped with specific permissions can exploit this vulnerability to view all forms and form entries within a site via the forms section in site administration.
Technical Details of CVE-2021-33334
This section provides detailed technical insights into the vulnerability.
Vulnerability Description
The issue arises from inadequate permission validation, allowing unauthorized access to sensitive information within Liferay Portal and Liferay DXP.
Affected Systems and Versions
The vulnerability affects Liferay Portal versions 7.0.0 through 7.3.2, and Liferay DXP versions 7.0 to 7.2 before specific fix packs.
Exploitation Mechanism
Attackers with the 'Access in Site Administration' permission can leverage this vulnerability to view restricted forms and form entries.
Mitigation and Prevention
Protecting systems from CVE-2021-33334 requires immediate actions and long-term security practices.
Immediate Steps to Take
Administrators should review and update user permissions, restrict access to sensitive data, and monitor for any unauthorized activities.
Long-Term Security Practices
Implement regular security assessments, train users on best security practices, and keep software up to date to prevent similar vulnerabilities.
Patching and Updates
Ensure timely application of the recommended fix packs for Liferay Portal and Liferay DXP to address this vulnerability.