CVE-2024-12021
Remediation / Mitigation Strategy: CVE-2024-12021 (Coverity Stored XSS)
Vulnerability Description: Coverity versions prior to 2024.9.0 are vulnerable to stored cross-site scripting (XSS) in various administrative interfaces.
Severity: High (CVSS v3.1 Score: 8.5)
Known Exploit: Exploitation could compromise local accounts managed by the Coverity platform, leading to unauthorized access and control. Standard XSS impacts, such as defacement, redirection, and information theft, are also possible.
Remediation/Mitigation Steps:
Upgrade Coverity: The primary and recommended solution is to upgrade to Coverity version 2024.9.0 or later. This version contains the necessary patches to address the stored XSS vulnerability.
- Follow the official Coverity upgrade documentation to ensure a smooth and successful upgrade process.
- Thoroughly test the upgraded Coverity instance in a non-production environment before deploying to production.
Input Validation and Output Encoding (While Awaiting Upgrade - Temporary Mitigation): If immediate upgrade is not possible, implement the following mitigations as a temporary workaround:
- Identify Affected Administrative Interfaces: Determine the specific administrative interfaces within Coverity that are vulnerable to XSS. Synopsys likely has internal documentation detailing the affected areas.
- Input Validation: For all input fields in the identified administrative interfaces:
- Implement strict input validation to sanitize and validate user-supplied data.
- Enforce character limits and allow only expected characters (whitelisting).
- Reject or sanitize input that contains potentially malicious code, such as HTML tags, JavaScript, or special characters.
- Output Encoding: For all output displayed in the identified administrative interfaces:
- Implement proper output encoding (e.g., HTML entity encoding) to prevent the browser from interpreting user-supplied data as executable code.
- Encode all data before rendering it in the browser.
Web Application Firewall (WAF): Deploy a Web Application Firewall (WAF) in front of the Coverity application. Configure the WAF with rules to detect and block common XSS attack patterns.
- Ensure the WAF rules are regularly updated to address emerging XSS threats.
Principle of Least Privilege: Review user access permissions within Coverity. Restrict administrative access to only those users who require it for their job functions.
- Enforce strong password policies for all Coverity accounts.
- Implement multi-factor authentication (MFA) for administrative accounts.
Security Monitoring: Implement continuous security monitoring to detect and respond to any suspicious activity targeting the Coverity platform.
- Monitor Coverity logs for XSS attack attempts.
- Set up alerts for unusual administrative activity.
User Awareness: Educate Coverity users, especially administrators, about the risks of XSS attacks and how to identify and avoid them.
- Emphasize the importance of avoiding clicking on suspicious links or downloading files from untrusted sources.
Note: The input validation and output encoding recommendations provide temporary mitigation while an upgrade is planned and executed. Upgrading to Coverity 2024.9.0 or later is the most effective way to fully address the vulnerability.
Assigner
- Synopsys [email protected]
Date
- Published Date: 2025-03-31 14:15:18
- Updated Date: 2025-03-31 14:15:18