CVE-2025-36102
📋 TL;DR
This vulnerability allows privileged users in IBM Controller/Cognos Controller to bypass server-side security validation by manipulating client-side inputs. It affects IBM Controller versions 11.1.0-11.1.1 and IBM Cognos Controller versions 11.0.0-11.0.1 FP6. The issue stems from improper client-side enforcement of security controls that should be validated server-side.
💻 Affected Systems
- IBM Controller
- IBM Cognos Controller
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
A privileged authenticated user could potentially manipulate application behavior to perform unauthorized actions, modify data, or escalate privileges beyond their intended access level.
Likely Case
Privileged users could bypass intended security controls to perform actions they shouldn't be authorized for, potentially leading to data integrity issues or unauthorized configuration changes.
If Mitigated
With proper access controls and monitoring, impact is limited to authorized users potentially exceeding their intended permissions, which can be detected and audited.
🎯 Exploit Status
Exploitation requires privileged user access and knowledge of the application's client-server interaction. No public exploit code is available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply the latest fix packs as specified in IBM advisory
Vendor Advisory: https://www.ibm.com/support/pages/node/7253273
Restart Required: Yes
Instructions:
1. Review IBM advisory for specific fix pack requirements. 2. Apply appropriate fix packs for your version. 3. Restart the Controller application services. 4. Verify the fix by testing security validation.
🔧 Temporary Workarounds
Enhanced Monitoring and Auditing
allImplement comprehensive logging and monitoring of privileged user activities to detect potential exploitation attempts.
Principle of Least Privilege Enforcement
allReview and reduce privileged user accounts to only those absolutely necessary for business functions.
🧯 If You Can't Patch
- Implement strict access controls and review all privileged user activities regularly
- Deploy application-level monitoring to detect unusual privileged user behavior patterns
🔍 How to Verify
Check if Vulnerable:
Check your IBM Controller/Cognos Controller version against affected versions. Review application logs for any unusual privileged user activities bypassing normal validation.Check Version:
Check version through IBM Controller administration interface or consult product documentation for version verification commands.Verify Fix Applied:
After applying patches, test that client-side inputs are properly validated server-side. Verify version is updated beyond vulnerable ranges.📡 Detection & Monitoring
Log Indicators:
- Unusual privileged user activities
- Client-side validation bypass attempts
- Unexpected parameter modifications by privileged users
Network Indicators:
- Unusual API calls from privileged user accounts
- Modified client requests that bypass normal validation flows
SIEM Query:
privileged_user AND (validation_bypass OR parameter_tampering) OR (source_user:privileged AND action:unusual)