1. Introduction
The MaxWebPortal memKey Parameter SQL Injection vulnerability is a flaw in the web server’s ASP script that allows attackers to inject malicious SQL code via the ‘memKey’ parameter within the ‘password.asp’ script. This can lead to sensitive information disclosure, data modification (such as user passwords), and potential attacks against the underlying database. Systems running vulnerable versions of MaxWebPortal are affected. A successful exploit could compromise confidentiality, integrity, and availability of the web application and its associated data.
2. Technical Explanation
The vulnerability occurs because MaxWebPortal does not properly validate input received through the ‘memKey’ parameter in the ‘password.asp’ script. This allows an attacker to insert SQL commands into the query, altering its intended behaviour. Exploitation requires network access to the web server and a vulnerable version of MaxWebPortal running the affected script. The vulnerability is tracked as CVE-2005-1779.
- Root cause: Missing input validation on the ‘memKey’ parameter in the ‘password.asp’ script allows unfiltered data to be used in SQL queries.
- Exploit mechanism: An attacker crafts a malicious URL containing specially formed SQL code within the ‘memKey’ parameter, which is then executed by the web server against its database. For example, adding a single quote (‘) character can break the query and allow further injection.
- Scope: Affected platforms are those running MaxWebPortal versions prior to a fix being released (specific affected versions are not detailed in the provided context).
3. Detection and Assessment
Confirming vulnerability involves checking the version of MaxWebPortal installed and attempting basic SQL injection tests. A thorough assessment would involve scanning for vulnerable parameters.
- Quick checks: Check the ‘About’ section within the MaxWebPortal web interface to determine the installed version.
- Scanning: Nessus plugin ID 13762 can detect this vulnerability, but results should be verified manually. Burp Suite or similar tools can also identify vulnerable parameters.
- Logs and evidence: Examine web server logs for suspicious SQL errors or unusual query patterns related to the ‘password.asp’ script. Look for error messages containing keywords like “SQL syntax” or “invalid query”.
# No specific command available in context, but check MaxWebPortal version via interface.4. Solution / Remediation Steps
Currently, a solution is unknown at the time of writing. The following steps outline preparation for applying a future patch or workaround when one becomes available.
4.1 Preparation
- Services to stop: Stop the IIS service hosting MaxWebPortal to prevent further exploitation during patching or updates. A roll back plan involves restoring from the pre-patch backup if issues occur.
- Dependencies: Ensure all dependencies are documented prior to applying a fix. Change windows may be required depending on the impact of the update.
4.2 Implementation
- Step 1: Monitor security tracker for patch release (http://securitytracker.com/alerts/2005/May/1014048.html).
- Step 2: Download and install the official patch or update from the vendor’s website when available.
4.3 Config or Code Example
No specific config or code example is available as a solution is currently unknown.
Before
# No insecure config/code provided in context.After
# Secure config/code will depend on the patch released by the vendor.4.4 Security Practices Relevant to This Vulnerability
Several security practices can help prevent this type of issue. Input validation is critical, as is least privilege.
- Practice 1: Least privilege – Limit database access rights for the MaxWebPortal application user account to only those necessary for its operation.
- Practice 2: Input validation – Implement strict input validation on all parameters accepted by web applications, including ‘memKey’, to prevent malicious SQL code from being injected.
4.5 Automation (Optional)
No automation script is available as a solution is currently unknown.
# No script provided in context.5. Verification / Validation
Verification involves confirming the patch has been applied and re-testing for the vulnerability. A smoke test should confirm core functionality remains operational.
- Post-fix check: Check the MaxWebPortal version again to confirm the updated version is installed.
- Re-test: Attempt the same SQL injection tests used during initial assessment; they should no longer be successful.
- Monitoring: Monitor web server logs for any errors related to SQL queries or input validation failures.
# No post-fix command available, check version via interface.6. Preventive Measures and Monitoring
Regular security baselines and pipeline checks can help prevent similar vulnerabilities. A sensible patch review cycle is also important.
- Baselines: Update your web server security baseline to include requirements for input validation and secure coding practices.
- Pipelines: Integrate static application security testing (SAST) tools into the CI/CD pipeline to identify potential SQL injection vulnerabilities during development.
- Asset and patch process: Establish a regular patch review cycle for all web applications, including MaxWebPortal, to ensure timely application of security updates.
7. Risks, Side Effects, and Roll Back
Applying patches can sometimes cause compatibility issues or service disruptions. A roll back plan is essential.
- Risk or side effect 1: Patch installation may temporarily disrupt MaxWebPortal service availability. Mitigate by scheduling the update during a maintenance window.
8. References and Resources
- Vendor advisory or bulletin: http://securitytracker.com/alerts/2005/May/1014048.html
- NVD or CVE entry: CVE-2005-1779
- Product or platform documentation relevant to the fix: No specific documentation provided in context.