1. Introduction
ManageEngine OpManager Login.do Multiple Parameter XSS is a cross-site scripting vulnerability affecting the ManageEngine OpManager web application. This allows an attacker to inject malicious code into webpages viewed by users, potentially stealing cookies, redirecting users or modifying website content. Systems running vulnerable versions of ManageEngine OpManager are at risk. A successful exploit could compromise confidentiality, integrity and availability of affected systems.
2. Technical Explanation
- Root cause: Insufficient input validation of user-supplied data in the ‘requestid’ parameter of the ‘jsp/Login.do’ script.
- Exploit mechanism: An attacker crafts a URL with a malicious payload in the ‘requestid’ parameter, which is then executed when a user visits the crafted link. For example, an attacker could use a payload like `` to display an alert box.
- Scope: ManageEngine OpManager versions prior to the fix are affected.
3. Detection and Assessment
You can confirm vulnerability by checking the installed version of ManageEngine OpManager, or by attempting a simple XSS payload in the login URL.
- Quick checks: Check the product version via the Help -> About menu within the OpManager web interface.
- Scanning: Nessus plugin ID 27456 can detect this vulnerability. Other scanners may also have relevant signatures.
- Logs and evidence: Examine application logs for suspicious characters or patterns in URL parameters, specifically related to ‘requestid’, ‘fileid’, ‘woMode’ and ‘woID’.
# No specific command available - check version via OpManager UI4. Solution / Remediation Steps
Apply the official patch or upgrade to a fixed version of ManageEngine OpManager as soon as possible. At this time, no solution is known.
4.1 Preparation
- Stop the OpManager service to ensure a clean update process. A roll back plan involves restoring from backup or reverting to the previous snapshot.
- A change window may be required depending on your environment and impact assessment. Approval from relevant stakeholders is recommended.
4.2 Implementation
- Step 1: Download the latest version of ManageEngine OpManager from the official website.
- Step 2: Stop the OpManager service.
- Step 3: Install the new version of ManageEngine OpManager, following the vendor’s installation instructions.
- Step 4: Start the OpManager service.
4.3 Config or Code Example
Before
# No code example available - vulnerability is in server-side script processingAfter
# No code example available - remediation requires updating OpManager version. 4.4 Security Practices Relevant to This Vulnerability
Input validation and least privilege are relevant security practices for this vulnerability. Input validation prevents malicious data from being processed, while least privilege limits the impact of a successful exploit.
- Practice 1: Implement robust input validation on all user-supplied data to prevent XSS attacks.
- Practice 2: Apply the principle of least privilege to limit the permissions of users and services.
4.5 Automation (Optional)
No automation script is provided due to the complexity of updating a web application like ManageEngine OpManager.
5. Verification / Validation
- Post-fix check: Check the product version via Help -> About menu within the OpManager web interface, confirming it is a fixed version.
- Re-test: Attempt to inject an XSS payload into the login URL and verify that it does not execute.
- Monitoring: Monitor application logs for any errors or suspicious activity related to input validation.
# No specific command available - check version via OpManager UI6. Preventive Measures and Monitoring
Update security baselines to include the latest versions of ManageEngine OpManager, and incorporate vulnerability scanning into your CI/CD pipelines. Regularly review patch release notes for new vulnerabilities.
- Baselines: Update your security baseline or policy to require a patched version of ManageEngine OpManager.
- Asset and patch process: Implement a regular patch review cycle for all critical systems, including ManageEngine OpManager.
7. Risks, Side Effects, and Roll Back
Updating ManageEngine OpManager may introduce compatibility issues with existing integrations or custom configurations. Always test updates in a non-production environment first. If problems occur, restore from backup or revert to the previous snapshot.
- Risk or side effect 2: Service interruption during update process. Mitigation: Schedule updates during off-peak hours and have a roll back plan ready.
- Roll back: Restore from backup or revert to the previous snapshot of the OpManager server.
8. References and Resources
- Vendor advisory or bulletin: https://secuniaresearch.flexerasoftware.com/advisories/27456/
- NVD or CVE entry: CVE-2007-5891