How to remediate – Invision Power Board Dragoran Portal Module index.php site Par…

1. Introduction

The Invision Power Board Dragoran Portal Module index.php site parameter vulnerability is a SQL injection flaw in an optional plugin for the Invision Power Board web application. This allows attackers to potentially access, modify, or delete data within the database that supports the forum software. Systems running Invision Power Board with the Dragoran Portal module enabled are affected. Successful exploitation could lead to loss of confidentiality, integrity, and availability of sensitive information.

2. Technical Explanation

• Root cause: Missing input validation on the ‘site’ parameter of the index.php script in the Dragoran Portal module.
• Exploit mechanism: An attacker crafts a malicious URL containing SQL injection code within the ‘site’ parameter, which is then processed by the vulnerable script and executed against the database. For example, an attacker could use a payload like http://example.com/index.php?module=dragoran&site=' OR '1'='1 to bypass authentication.
• Scope: Invision Power Board installations with the Dragoran Portal module enabled are affected. Specific versions were not provided in the context.

3. Detection and Assessment

To confirm vulnerability, check if the Dragoran Portal module is installed and then attempt to inject SQL code into the ‘site’ parameter.

• Quick checks: Check for the presence of the Dragoran Portal directory within your Invision Power Board installation.
• Scanning: Nessus plugin ID 30421 may detect this vulnerability, but results should be verified manually.
• Logs and evidence: Examine web server logs for suspicious requests containing SQL injection attempts targeting the ‘index.php’ script with the ‘site’ parameter. Look for error messages related to database queries.

# Example command placeholder:
# No specific command available without access to the Invision Power Board installation. Check directories manually.

4. Solution / Remediation Steps

Due to a lack of an official solution at this time, mitigation options are limited. The best approach is to disable or remove the Dragoran Portal module until a patch becomes available.

4.1 Preparation

• Ensure you have access to the Invision Power Board administration interface. A roll back plan is to restore the database and files from the backup.
• A change window may be required depending on your environment, and approval from a system administrator may be necessary.

4.2 Implementation

1. Step 1: Log in to the Invision Power Board administration interface.
2. Step 2: Navigate to the Modules section (location varies by version).
3. Step 3: Disable or uninstall the Dragoran Portal module.
4. Step 4: Clear the Invision Power Board cache.

4.3 Config or Code Example

No config or code changes are required; this involves disabling a module within the administration interface.

Before

# Dragoran Portal module is enabled in the Invision Power Board admin panel.

After

# Dragoran Portal module is disabled or uninstalled in the Invision Power Board admin panel.

4.4 Security Practices Relevant to This Vulnerability

Several security practices can help prevent this type of vulnerability.

• Practice 2: Least privilege – Ensure that the database account used by Invision Power Board has only the necessary permissions to perform its functions.

4.5 Automation (Optional)

Automation is not practical for this specific vulnerability without access to the Invision Power Board API or command-line interface.

5. Verification / Validation

Confirm that the Dragoran Portal module has been successfully disabled and that SQL injection attempts are no longer successful.

• Post-fix check: Verify in the Invision Power Board administration panel that the Dragoran Portal module is disabled or uninstalled.
• Re-test: Attempt to inject SQL code into the ‘site’ parameter again; it should no longer be possible to bypass authentication or access sensitive data.
• Monitoring: Monitor web server logs for any errors related to database queries, particularly those involving the index.php script.

# Post-fix command and expected output
# No specific command available; verify through the admin panel UI.

6. Preventive Measures and Monitoring

Implement security best practices to prevent similar vulnerabilities in the future.

• Baselines: Update your Invision Power Board security baseline to include regular module updates and vulnerability scanning.
• Pipelines: Integrate SAST (Static Application Security Testing) into your development pipeline to identify potential SQL injection flaws early on.
• Asset and patch process: Establish a regular patch review cycle for all third-party modules, including Invision Power Board plugins.

7. Risks, Side Effects, and Roll Back

Disabling the Dragoran Portal module may affect functionality that relies on it.

• Roll back:
  1. Step 1: Re-enable the Dragoran Portal module in the Invision Power Board administration interface.
  2. Step 2: Restore the Invision Power Board cache.

8. References and Resources

• Vendor advisory or bulletin: No official advisory available at this time.
• NVD or CVE entry: CVE-2006-0520
• Product or platform documentation relevant to the fix: Invision Power Board Website