CVE-2023-33940 : What You Need to Know
Learn about CVE-2023-33940 affecting Liferay Portal and DXP, allowing remote attackers to execute XSS attacks. Find mitigation steps and security practices here.
A Cross-Site Scripting (XSS) vulnerability in Liferay Portal and Liferay DXP versions allows remote attackers to inject malicious scripts via Remote App's IFrame URL.
Understanding CVE-2023-33940
This CVE involves a security issue in Liferay Portal and Liferay DXP versions that can be exploited by attackers to execute XSS attacks.
What is CVE-2023-33940?
The CVE-2023-33940 vulnerability arises from a flaw in the IFrame type Remote Apps in Liferay Portal 7.4.0 through 7.4.3.30, and Liferay DXP 7.4 versions. Attackers can inject arbitrary web script or HTML through the Remote App's IFrame URL.
The Impact of CVE-2023-33940
The impact of this vulnerability allows remote attackers to potentially execute malicious scripts on the affected systems, leading to data theft, unauthorized content modification, or other forms of cyber threats.
Technical Details of CVE-2023-33940
This section covers specific technical aspects of the CVE.
Vulnerability Description
The vulnerability stems from improper neutralization of input during web page generation, making it susceptible to XSS attacks.
Affected Systems and Versions
Liferay Portal versions 7.4.0 through 7.4.3.30 and Liferay DXP version 7.4 before update 31 are affected by this vulnerability.
Exploitation Mechanism
Remote attackers can exploit this vulnerability by injecting malicious web script or HTML via the IFrame URL of Remote Apps.
Mitigation and Prevention
Protecting systems from CVE-2023-33940 requires immediate action and long-term security measures.
Immediate Steps to Take
- Apply the latest security updates provided by Liferay for both Portal and DXP versions.
- Monitor and restrict access to the vulnerable components.
- Implement content security policies to mitigate XSS attacks.
Long-Term Security Practices
- Regularly audit and update security configurations.
- Educate users on safe browsing practices and phishing awareness.
- Conduct security assessments and penetration testing periodically.
Patching and Updates
Ensure timely application of security patches released by Liferay to address the vulnerability effectively.