CVE-2024-28798
📋 TL;DR
IBM InfoSphere Information Server 11.7 contains a stored cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious JavaScript into the web interface. This could enable attackers to steal credentials or perform unauthorized actions within trusted user sessions. Organizations running vulnerable versions of this data integration platform are affected.
💻 Affected Systems
- IBM InfoSphere Information Server
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator credentials, gain full system access, and potentially pivot to other systems in the environment.
Likely Case
Attackers could steal user session cookies or credentials, leading to unauthorized data access or privilege escalation.
If Mitigated
With proper input validation and output encoding, the risk is reduced to minimal, though the vulnerability still exists in the codebase.
🎯 Exploit Status
Exploitation requires authenticated access but is technically simple once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply fix as specified in IBM advisory
Vendor Advisory: https://www.ibm.com/support/pages/node/7158439
Restart Required: Yes
Instructions:
1. Review IBM advisory at provided URL. 2. Download and apply the appropriate fix from IBM Fix Central. 3. Restart the InfoSphere Information Server services. 4. Verify the fix is applied correctly.
🔧 Temporary Workarounds
Input Validation Enhancement
allImplement additional input validation and output encoding for user-supplied content in the web interface
Content Security Policy
allImplement strict Content Security Policy headers to limit script execution
🧯 If You Can't Patch
- Restrict access to the InfoSphere Information Server web interface to only trusted users and networks
- Implement web application firewall rules to detect and block XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check if running IBM InfoSphere Information Server version 11.7 without the security fix appliedCheck Version:
Check the product version through the InfoSphere Information Server administration console or installation logsVerify Fix Applied:
Verify the fix has been applied by checking version information and reviewing the applied patches in IBM Fix Central📡 Detection & Monitoring
Log Indicators:
- Unusual JavaScript injection patterns in web server logs
- Multiple failed login attempts followed by successful authentication
Network Indicators:
- Suspicious JavaScript payloads in HTTP requests to the InfoSphere web interface
SIEM Query:
source="web_server_logs" AND (url="*<script>*" OR url="*javascript:*" OR url="*onload=*" OR url="*onerror=*")