CVE-2019-17091 Explained : Impact and Mitigation
Learn about CVE-2019-17091, a vulnerability in Eclipse Mojarra allowing Reflected XSS attacks. Find out how to mitigate the risk and protect your systems.
Eclipse Mojarra's PartialViewContextImpl.java, which is utilized in Mojarra for Eclipse EE4J prior to version 2.3.10 and Mojarra JavaServer Faces prior to version 2.2.20, exhibits a vulnerability that enables Reflected XSS attacks. This vulnerability arises due to improper handling of a client window field.
Understanding CVE-2019-17091
This CVE involves a vulnerability in Eclipse Mojarra's PartialViewContextImpl.java, impacting versions prior to 2.3.10 for Eclipse EE4J and 2.2.20 for Mojarra JavaServer Faces.
What is CVE-2019-17091?
CVE-2019-17091 is a vulnerability in Eclipse Mojarra that allows for Reflected XSS attacks due to mishandling of a client window field.
The Impact of CVE-2019-17091
The vulnerability can be exploited by attackers to execute malicious scripts in the context of a user's session, potentially leading to unauthorized actions or data theft.
Technical Details of CVE-2019-17091
This section provides detailed technical information about the CVE.
Vulnerability Description
The vulnerability in PartialViewContextImpl.java allows for Reflected XSS attacks due to improper handling of a client window field.
Affected Systems and Versions
- Eclipse Mojarra for Eclipse EE4J prior to version 2.3.10
- Mojarra JavaServer Faces prior to version 2.2.20
Exploitation Mechanism
Attackers can exploit this vulnerability by injecting and executing malicious scripts through the mishandled client window field.
Mitigation and Prevention
Protecting systems from CVE-2019-17091 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update Eclipse Mojarra to version 2.3.10 for Eclipse EE4J and 2.2.20 for Mojarra JavaServer Faces.
- Monitor and restrict user input to prevent script injection.
Long-Term Security Practices
- Implement secure coding practices to sanitize user inputs.
- Regularly update and patch software to address known vulnerabilities.
Patching and Updates
Ensure timely installation of security patches and updates provided by Eclipse Mojarra to mitigate the CVE.