CVE-2022-42124 : Exploit Details and Defense Strategies
CVE-2022-42124 enables remote attackers to exhaust server resources in Liferay Portal & DXP 7.2 - 7.4.4 via a crafted payload in the 'name' field, impacting performance.
A Remote Denial of Service (ReDoS) vulnerability in LayoutPageTemplateEntryUpgradeProcess in Liferay Portal 7.3.2 through 7.4.3.4 and Liferay DXP 7.2 through 7.4.4 allows attackers to exhaust server resources through a specially crafted payload injected into the 'name' field of a layout prototype.
Understanding CVE-2022-42124
This section provides insights into the nature and impact of the vulnerability.
What is CVE-2022-42124?
The vulnerability enables remote attackers to deplete an excessive volume of server resources by exploiting a specific input field in Liferay Portal and Liferay DXP versions mentioned.
The Impact of CVE-2022-42124
The exploit can lead to a significant decrease in server performance and availability, potentially disrupting services and causing denial of service to legitimate users.
Technical Details of CVE-2022-42124
Explore the specific technical aspects of the vulnerability below.
Vulnerability Description
The vulnerability arises from improper input validation in the 'name' field of a layout prototype, allowing attackers to introduce a malicious payload that consumes server resources excessively.
Affected Systems and Versions
Liferay Portal versions 7.3.2 through 7.4.3.4, Liferay DXP versions 7.2 through 7.4.4 are impacted by this vulnerability.
Exploitation Mechanism
Attackers can exploit the vulnerability by injecting a carefully crafted payload into the 'name' field of a layout prototype, triggering resource exhaustion on the server.
Mitigation and Prevention
Learn how to address and prevent the CVE-2022-42124 vulnerability below.
Immediate Steps to Take
It is crucial to apply official patches and fixes provided by Liferay to mitigate the vulnerability. Additionally, monitor server performance for any unusual resource consumption.
Long-Term Security Practices
Implement strict input validation mechanisms and conduct regular security audits to detect and mitigate similar vulnerabilities in the future.
Patching and Updates
Stay updated with security advisories from Liferay and promptly apply patches and updates to ensure ongoing protection against exploits.