CVE-2019-19336 Explained : Impact and Mitigation
Learn about CVE-2019-19336, a cross-site scripting vulnerability in the oVirt-engine's OAuth authorization endpoint before version 4.3.8. Find out the impact, affected systems, and mitigation steps.
An issue related to cross-site scripting has been identified in the OAuth authorization endpoint of the oVirt-engine, prior to version 4.3.8. The problem arises because the HTML response does not properly escape URL parameters. As a result, an attacker could exploit this vulnerability by generating harmful HTML pages capable of executing scripts within the user's oVirt session environment.
Understanding CVE-2019-19336
This CVE involves a cross-site scripting vulnerability in the oVirt-engine's OAuth authorization endpoint.
What is CVE-2019-19336?
CVE-2019-19336 is a cross-site scripting vulnerability in the OAuth authorization endpoint of the oVirt-engine before version 4.3.8.
The Impact of CVE-2019-19336
The vulnerability could allow an attacker to execute malicious scripts within the user's oVirt session environment, potentially leading to unauthorized actions.
Technical Details of CVE-2019-19336
This section provides technical details of the CVE.
Vulnerability Description
The issue stems from the inclusion of URL parameters in the HTML response without proper escaping, enabling attackers to craft harmful HTML pages.
Affected Systems and Versions
- Product: oVirt-engine
- Vendor: Red Hat
- Versions Affected: 4.3.8
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: None
- User Interaction: Required
- Scope: Unchanged
- Confidentiality Impact: Low
- Integrity Impact: Low
- Availability Impact: None
Mitigation and Prevention
Protecting systems from CVE-2019-19336 is crucial to maintaining security.
Immediate Steps to Take
- Update to version 4.3.8 of the oVirt-engine to mitigate the vulnerability.
- Implement input validation and output encoding to prevent cross-site scripting attacks.
Long-Term Security Practices
- Regularly monitor and audit web applications for security vulnerabilities.
- Educate users on safe browsing practices to minimize the risk of XSS attacks.
Patching and Updates
- Stay informed about security updates and patches released by Red Hat to address vulnerabilities like CVE-2019-19336.