CVE-2024-25020
📋 TL;DR
IBM Cognos Controller versions 11.0.0 and 11.0.1 allow unrestricted file uploads in the Journal entry page, enabling attackers to upload malicious executable files. This vulnerability affects organizations using these specific versions of IBM Cognos Controller for financial reporting and consolidation.
💻 Affected Systems
- IBM Cognos Controller
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could upload and execute malware, leading to complete system compromise, data theft, ransomware deployment, or lateral movement within the network.
Likely Case
Attackers upload malicious files disguised as legitimate attachments, then trick users into executing them, leading to malware infection, credential theft, or data exfiltration.
If Mitigated
With proper file type validation and user awareness, the risk reduces to minimal impact, though the vulnerability still exists.
🎯 Exploit Status
Exploitation requires authenticated access to the Journal entry page; file upload bypass is straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply fix as per IBM Security Bulletin
Vendor Advisory: https://www.ibm.com/support/pages/node/7177220
Restart Required: Yes
Instructions:
1. Review IBM Security Bulletin. 2. Apply the recommended fix or upgrade to a patched version. 3. Restart the IBM Cognos Controller service.
🔧 Temporary Workarounds
Restrict file upload types
allConfigure the application to only allow specific safe file types (e.g., .txt, .pdf) and block executable extensions.
Implement web application firewall rules
allDeploy WAF rules to block malicious file uploads based on file signatures or extensions.
🧯 If You Can't Patch
- Restrict user access to the Journal entry page to only necessary personnel.
- Monitor file upload activities and audit logs for suspicious behavior.
🔍 How to Verify
Check if Vulnerable:
Check IBM Cognos Controller version; if it is 11.0.0 or 11.0.1, it is vulnerable.Check Version:
Refer to IBM documentation for version check commands specific to your deployment.Verify Fix Applied:
Verify the applied fix by checking the version or testing file upload restrictions in the Journal entry page.📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads in application logs
- Uploads of executable file types (.exe, .bat, .ps1)
Network Indicators:
- Unexpected outbound connections after file uploads
SIEM Query:
source="cognos_controller" AND event="file_upload" AND file_extension IN ("exe", "bat", "ps1", "sh")