CVE-2024-28777
📋 TL;DR
IBM Cognos Controller and IBM Controller contain an unrestricted deserialization vulnerability that allows authenticated users to execute arbitrary code, escalate privileges, or cause denial of service attacks. This affects IBM Cognos Controller versions 11.0.0 through 11.0.1 FP3 and IBM Controller version 11.1.0.
💻 Affected Systems
- IBM Cognos Controller
- IBM Controller
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with remote code execution leading to data theft, lateral movement, and persistent backdoor installation.
Likely Case
Privilege escalation allowing unauthorized access to sensitive financial data and system manipulation.
If Mitigated
Limited impact with proper network segmentation and strict access controls preventing exploitation.
🎯 Exploit Status
Requires authenticated access. Exploitation involves crafting malicious serialized objects to trigger deserialization.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: IBM Cognos Controller 11.0.1 FP4 or later, IBM Controller 11.1.1 or later
Vendor Advisory: https://www.ibm.com/support/pages/node/7183597
Restart Required: No
Instructions:
1. Download the appropriate fix pack from IBM Fix Central. 2. Apply the fix pack following IBM's installation instructions. 3. Verify the patch is applied correctly.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to IBM Controller systems to only trusted users and applications.
Least Privilege Access
allImplement strict access controls and limit user permissions to minimum required for business functions.
🧯 If You Can't Patch
- Implement strict network segmentation and firewall rules to limit access to IBM Controller systems
- Apply application whitelisting to prevent execution of unauthorized code
🔍 How to Verify
Check if Vulnerable:
Check IBM Controller version via administrative console or version files. Compare against affected versions.Check Version:
Check version in IBM Controller administrative interface or consult installation documentation.Verify Fix Applied:
Verify installed version is IBM Cognos Controller 11.0.1 FP4+ or IBM Controller 11.1.1+.📡 Detection & Monitoring
Log Indicators:
- Unusual deserialization errors
- Unexpected process execution
- Authentication anomalies
Network Indicators:
- Unusual outbound connections from IBM Controller systems
- Suspicious serialized data patterns
SIEM Query:
source="ibm_controller" AND (event_type="deserialization_error" OR process_execution="unusual")