CVE-2024-54183
📋 TL;DR
This CVE describes a stored cross-site scripting (XSS) vulnerability in IBM Sterling B2B Integrator and Sterling File Gateway. An authenticated attacker can inject malicious JavaScript into the web interface, potentially stealing session credentials or performing unauthorized actions. The vulnerability affects versions 6.0.0.0 through 6.1.2.6 and 6.2.0.0 through 6.2.0.4.
💻 Affected Systems
- IBM Sterling B2B Integrator
- IBM Sterling File Gateway
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An authenticated malicious user could steal administrator credentials, hijack sessions, perform unauthorized transactions, or compromise the entire B2B integration system.
Likely Case
An authenticated user with malicious intent steals session cookies or credentials from other users, leading to unauthorized access to sensitive B2B data.
If Mitigated
With proper input validation and output encoding, the attack would fail to execute JavaScript, preventing credential theft.
🎯 Exploit Status
Exploitation requires authenticated access; typical XSS payloads can be used once the injection point is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply interim fix or upgrade to versions beyond affected ranges (check IBM advisory for specific fixed versions).
Vendor Advisory: https://www.ibm.com/support/pages/node/7237060
Restart Required: Yes
Instructions:
1. Review IBM advisory for specific fixed versions. 2. Apply the recommended interim fix or upgrade to a non-vulnerable version. 3. Restart the application services.
🔧 Temporary Workarounds
Implement Content Security Policy (CSP)
allDeploy a strict CSP header to block inline scripts and restrict script sources, mitigating XSS impact.
Add CSP header in web server configuration, e.g., Content-Security-Policy: default-src 'self'; script-src 'self'
Input Validation and Output Encoding
allImplement server-side validation and encode user inputs before rendering in the UI.
Configure application to sanitize and encode user inputs in affected UI components.
🧯 If You Can't Patch
- Restrict user permissions to minimize authenticated users who could exploit this.
- Monitor application logs for suspicious input patterns and implement web application firewall (WAF) rules to block XSS payloads.
🔍 How to Verify
Check if Vulnerable:
Check the application version against affected ranges; review IBM advisory for specific version details.Check Version:
Check application version via admin console or configuration files (specific command varies by deployment).Verify Fix Applied:
Verify the applied patch version matches IBM's fixed versions; test UI inputs for XSS payloads to ensure they are sanitized.📡 Detection & Monitoring
Log Indicators:
- Log entries showing suspicious JavaScript or HTML input in user-submitted data.
- Unexpected session terminations or authentication failures.
Network Indicators:
- HTTP requests containing script tags or JavaScript payloads to vulnerable endpoints.
SIEM Query:
Search for patterns like '<script>', 'javascript:', or encoded XSS payloads in web request logs.