1. Introduction
Dell OpenManage Server Administrator has a cross-site scripting vulnerability in the index_main.htm web application. This allows an attacker to inject malicious scripts into a user’s browser if they are tricked into visiting a specially crafted URL. This could lead to session hijacking, data theft, or defacement of the web interface. Affected systems typically include servers running Dell OpenManage Server Administrator. A successful exploit can compromise confidentiality, integrity and availability.
2. Technical Explanation
The vulnerability occurs due to insufficient input validation when handling requests for the index_main.htm file within the Dell OpenManage Server Administrator web application. An attacker can craft a URL containing malicious JavaScript code that is then executed in the context of the user’s browser session. The CVE identifier for this issue is CVE-2012-6272.
- Root cause: Missing input validation on requests to index_main.htm allows arbitrary script injection.
- Exploit mechanism: An attacker sends a malicious URL containing JavaScript code to a user, which executes when the URL is accessed in a web browser. For example, an attacker could send a link like
http://[target server]/index_main.htm?param= - Scope: Dell OpenManage Server Administrator versions are affected. Specific version ranges were not provided in the context.
3. Detection and Assessment
To confirm vulnerability, check the installed version of Dell OpenManage Server Administrator. A thorough method involves attempting to inject a test XSS payload.
- Quick checks: Check the Dell OpenManage Server Administrator web interface for its version number.
- Scanning: Nessus and other scanners may detect this vulnerability using signature ID 57212. This is an example only, results should be verified.
- Logs and evidence: Examine web server logs for requests containing suspicious characters or script tags targeting index_main.htm.
4. Solution / Remediation Steps
There is currently no known solution for this vulnerability at this time.
4.1 Preparation
- Dependencies: No dependencies are listed in the context. A roll back plan involves restoring from the pre-change backup.
- Change window: Evaluate change window requirements based on business impact and risk tolerance.
4.2 Implementation
- Step 1: Monitor Dell’s security advisories for a patch or update addressing this vulnerability.
- Step 2: Once available, follow Dell’s official instructions to apply the patch or update.
4.3 Config or Code Example
No config or code changes are possible as there is no known solution at this time.
Before
After
4.4 Security Practices Relevant to This Vulnerability
Input validation and secure coding practices are relevant to this vulnerability.
- Practice 2: Safe defaults, such as disabling unnecessary web features, reduce the attack surface and potential for exploitation.
4.5 Automation (Optional)
No automation steps are available at this time.
5. Verification / Validation
- Post-fix check: Check the installed version of Dell OpenManage Server Administrator and confirm it matches the patched version.
- Re-test: Attempt to access the index_main.htm file with a malicious URL containing JavaScript code. The script should not execute.
- Smoke test: Verify that core functionality of Dell OpenManage Server Administrator, such as server monitoring and inventory management, continues to operate normally.
- Monitoring: Monitor web server logs for any suspicious activity related to index_main.htm.
6. Preventive Measures and Monitoring
Regular security baselines, patch management processes, and CI/CD pipeline checks can help prevent similar vulnerabilities.
- Baselines: Update security baselines to include the latest Dell OpenManage Server Administrator versions and configurations.
- Asset and patch process: Implement a regular patch review cycle for all systems, including Dell OpenManage Server Administrator.
7. Risks, Side Effects, and Roll Back
Applying patches or updates may introduce compatibility issues or service disruptions. Always test in a non-production environment first.
- Risk or side effect 2: Service downtime during patching. Mitigation: Schedule patching during a maintenance window.
8. References and Resources
- Vendor advisory or bulletin: https://www.tenable.com/security/research/TRA-2013-01
- NVD or CVE entry: CVE-2012-6272
- Product or platform documentation relevant to the fix: No specific documentation available in context.