CVE-2021-38267 : Vulnerability Insights and Analysis
Learn about CVE-2021-38267, a XSS vulnerability in Liferay Portal allowing remote attackers to inject malicious scripts. Find out impact, affected systems, and mitigation steps.
This article provides insights into CVE-2021-38267, a Cross-site scripting (XSS) vulnerability found in Liferay Portal and Liferay DXP versions.
Understanding CVE-2021-38267
CVE-2021-38267 is a security vulnerability that allows remote attackers to inject malicious web scripts or HTML into Liferay Portal and Liferay DXP.
What is CVE-2021-38267?
The vulnerability exists in the Blogs module's edit blog entry page in Liferay Portal 7.3.2 through 7.3.6, and Liferay DXP 7.3 before fix pack 2. Attackers can exploit this to insert arbitrary scripts via specific parameters.
The Impact of CVE-2021-38267
This XSS vulnerability can lead to unauthorized access, data theft, and potential data manipulation on affected systems. It poses a severe risk to the confidentiality and integrity of user data.
Technical Details of CVE-2021-38267
Let's delve into the specifics of this vulnerability.
Vulnerability Description
The flaw allows attackers to execute malicious scripts by manipulating the _com_liferay_blogs_web_portlet_BlogsAdminPortlet_title and _com_liferay_blogs_web_portlet_BlogsAdminPortlet_subtitle parameters.
Affected Systems and Versions
Liferay Portal versions 7.3.2 through 7.3.6 and Liferay DXP 7.3 before fix pack 2 are impacted by this vulnerability.
Exploitation Mechanism
Remote attackers can exploit this vulnerability by injecting crafted web scripts or HTML code through the affected parameters.
Mitigation and Prevention
To protect systems from CVE-2021-38267, follow these security measures.
Immediate Steps to Take
- Apply the latest security patches released by Liferay to address this vulnerability.
- Implement input validation mechanisms to sanitize user-generated content.
Long-Term Security Practices
- Regularly monitor security advisories from Liferay to stay informed about potential vulnerabilities.
- Conduct security assessments and penetration testing on your systems to identify and mitigate similar risks.
Patching and Updates
Stay updated with security patches and version upgrades provided by Liferay to ensure your systems are protected against known vulnerabilities.