CVE-2024-56341
📋 TL;DR
IBM Content Navigator versions 3.0.11, 3.0.15, and 3.1.0 contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious JavaScript into the web interface. This could lead to session hijacking, credential theft, or other malicious actions within the user's browser. Only authenticated users can exploit this vulnerability.
💻 Affected Systems
- IBM Content Navigator
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An attacker steals administrator credentials, gains full control of the IBM Content Navigator system, accesses sensitive documents, and potentially pivots to other systems.
Likely Case
An authenticated user with malicious intent steals session cookies or credentials from other users viewing the malicious content, leading to unauthorized access to documents and data.
If Mitigated
With proper input validation and output encoding, the attack is prevented, and no impact occurs.
🎯 Exploit Status
Exploitation requires an authenticated user to inject malicious scripts; typical XSS techniques apply.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply fixes as per IBM advisory APAR IJ49703
Vendor Advisory: https://www.ibm.com/support/pages/node/7229839
Restart Required: Yes
Instructions:
1. Review IBM advisory for specific patch details. 2. Apply the recommended fix or upgrade to a non-vulnerable version. 3. Restart the IBM Content Navigator service to apply changes.
🔧 Temporary Workarounds
Implement Content Security Policy (CSP)
allDeploy a strict CSP header to restrict script execution from untrusted sources, mitigating XSS attacks.
Add 'Content-Security-Policy' header in web server configuration with script-src directives.
Input Validation and Sanitization
allEnforce server-side validation and sanitization of all user inputs to prevent script injection.
Implement input filtering in application code to strip or encode malicious characters.
🧯 If You Can't Patch
- Restrict user permissions to minimize the number of authenticated users who could exploit this vulnerability.
- Monitor web application logs for suspicious activity, such as unusual script tags or JavaScript payloads in requests.
🔍 How to Verify
Check if Vulnerable:
Check the IBM Content Navigator version against affected versions (3.0.11, 3.0.15, 3.1.0) via the admin console or system logs.Check Version:
Check the version in the IBM Content Navigator web interface under 'Help' > 'About' or review installation logs.Verify Fix Applied:
After applying the patch, verify the version is updated and test for XSS by attempting to inject simple scripts in user input fields.📡 Detection & Monitoring
Log Indicators:
- Unusual JavaScript or script tags in HTTP request logs, especially from authenticated users.
Network Indicators:
- Unexpected outbound connections from user browsers to external domains after visiting the application.
SIEM Query:
source="web_logs" AND (http_request CONTAINS "<script>" OR http_request CONTAINS "javascript:") AND user IS NOT NULL