CVE-2024-28776
📋 TL;DR
This cross-site scripting (XSS) vulnerability in IBM Cognos Controller allows attackers to inject malicious JavaScript into the web interface. When exploited, it can steal user credentials or perform unauthorized actions within authenticated sessions. Organizations using IBM Cognos Controller 11.0.0 through 11.0.1 FP3 or IBM Controller 11.1.0 are affected.
💻 Affected Systems
- IBM Cognos Controller
- IBM Controller
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers steal administrator credentials, gain full system access, and potentially compromise the entire Cognos Controller environment and connected systems.
Likely Case
Attackers steal user session cookies or credentials, leading to unauthorized access to financial data and potential data manipulation.
If Mitigated
Limited impact with proper input validation and output encoding, though some functionality disruption may occur.
🎯 Exploit Status
Exploitation requires user interaction with malicious content, but XSS attacks are well-understood and commonly weaponized.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply IBM Cognos Controller 11.0.1 Fix Pack 4 or later, or IBM Controller 11.1.1
Vendor Advisory: https://www.ibm.com/support/pages/node/7183597
Restart Required: Yes
Instructions:
1. Download the appropriate fix pack from IBM Fix Central. 2. Backup your current installation. 3. Apply the fix pack following IBM's installation guide. 4. Restart the Cognos Controller services. 5. Verify the patch was applied successfully.
🔧 Temporary Workarounds
Implement Content Security Policy (CSP)
allAdd CSP headers to restrict script execution to trusted sources only.
Add 'Content-Security-Policy' header to web server configuration with appropriate directives
Input Validation Filtering
allImplement server-side input validation to sanitize user inputs.
Configure web application firewall rules to block suspicious script patterns
🧯 If You Can't Patch
- Isolate the Cognos Controller application behind a web application firewall (WAF) with XSS protection rules enabled.
- Implement strict access controls and monitor for unusual user activity patterns.
🔍 How to Verify
Check if Vulnerable:
Check your IBM Cognos Controller version via the administration console or by examining installation files.Check Version:
Check the version in the Cognos Controller administration interface or review the installation logs.Verify Fix Applied:
Verify the installed version is 11.0.1 FP4 or later, or 11.1.1 or later, and test for XSS vulnerabilities using security scanning tools.📡 Detection & Monitoring
Log Indicators:
- Unusual JavaScript payloads in HTTP requests
- Multiple failed login attempts from unexpected locations
- Suspicious user agent strings containing script tags
Network Indicators:
- HTTP requests containing script tags or JavaScript code in parameters
- Unexpected redirects to external domains
SIEM Query:
source="web_server_logs" AND (http_request CONTAINS "<script>" OR http_request CONTAINS "javascript:")