CVE-2024-38327: IBM Analytics Content Hub Info Disclosure

CVE-2024-38327 Overview

IBM Analytics Content Hub versions 2.0, 2.1, 2.2, and 2.3 contain an information disclosure vulnerability caused by an exposed JavaScript source map. This security flaw allows unauthenticated attackers to access and debug JavaScript code used in the application's API, potentially revealing sensitive implementation details, authentication mechanisms, and business logic that could be leveraged for further attacks.

Critical Impact

Attackers can read and analyze JavaScript source code through exposed source maps, enabling reconnaissance for additional attacks against IBM Analytics Content Hub deployments.

Affected Products

• IBM Analytics Content Hub 2.0
• IBM Analytics Content Hub 2.1
• IBM Analytics Content Hub 2.2
• IBM Analytics Content Hub 2.3

Discovery Timeline

• 2025-07-10 - CVE-2024-38327 published to NVD
• 2025-07-23 - Last updated in NVD database

Technical Details for CVE-2024-38327

Vulnerability Analysis

This vulnerability falls under CWE-540 (Inclusion of Sensitive Information in Source Code). JavaScript source maps are typically used during development to map minified or bundled JavaScript back to its original source code for debugging purposes. When these source maps are inadvertently exposed in production environments, they provide attackers with a clear view of the application's client-side logic.

In the case of IBM Analytics Content Hub, the exposed source maps allow attackers to reconstruct the original JavaScript code used in the application's API layer. This information exposure can reveal API endpoints, authentication flows, data validation logic, and potentially sensitive comments or hardcoded values left by developers during the development process.

Root Cause

The root cause of this vulnerability is the improper inclusion of JavaScript source map files (.map files) in the production deployment of IBM Analytics Content Hub. These files should be excluded from production builds or access-restricted, but were inadvertently left accessible to unauthenticated users. This represents a configuration and deployment oversight where development artifacts were not properly sanitized before release.

Attack Vector

The attack can be executed remotely over the network without any authentication or user interaction. An attacker can:

1. Identify the IBM Analytics Content Hub deployment through reconnaissance
2. Request JavaScript files and their associated source map files via standard HTTP requests
3. Use the source maps to reconstruct and analyze the original, unminified JavaScript source code
4. Extract information about API endpoints, authentication mechanisms, business logic, and potential security weaknesses
5. Leverage the gathered intelligence to craft targeted attacks against the application

The vulnerability is particularly concerning because it requires no privileges and provides high-value reconnaissance data that can facilitate more severe attacks against the system.

Detection Methods for CVE-2024-38327

Indicators of Compromise

• Unusual HTTP requests targeting .map files or source map endpoints in web server access logs
• Multiple sequential requests for JavaScript files followed by their corresponding source map files
• Access attempts to development or debugging endpoints from external IP addresses
• Requests containing sourceMappingURL or sourceURL parameters from unknown sources

Detection Strategies

• Monitor web server logs for requests to JavaScript source map files (files ending in .js.map)
• Implement web application firewall (WAF) rules to detect and alert on source map file access attempts
• Configure intrusion detection systems (IDS) to flag reconnaissance patterns targeting static JavaScript assets
• Audit Content Security Policy headers to ensure source maps are not referenced in production

Monitoring Recommendations

• Enable detailed access logging for all static file requests on IBM Analytics Content Hub servers
• Set up alerts for access to known source map file paths or patterns
• Review web server configurations periodically to ensure source maps are not being served
• Monitor for downstream attack indicators that may follow successful reconnaissance via source maps

How to Mitigate CVE-2024-38327

Immediate Actions Required

• Apply the latest security patch from IBM immediately for all affected IBM Analytics Content Hub installations
• Audit current deployments to identify and remove any exposed source map files
• Implement access controls to block external access to .map files at the web server or WAF level
• Review application configurations to disable source map generation in production builds

Patch Information

IBM has released a security update to address this vulnerability. Administrators should consult the IBM Support Documentation for detailed patch installation instructions and download links. All instances of IBM Analytics Content Hub versions 2.0, 2.1, 2.2, and 2.3 should be updated to the patched version as soon as possible.

Workarounds

• Configure web server rules (Apache, Nginx, IIS) to deny access to all .map file requests from external sources
• Remove sourceMappingURL comments from production JavaScript files manually if patching is delayed
• Implement network segmentation to limit external access to IBM Analytics Content Hub instances
• Use a reverse proxy or WAF to filter requests for source map files before they reach the application

# Example Nginx configuration to block source map access
location ~* \.map$ {
    deny all;
    return 404;
}