CVE-2025-36243
📋 TL;DR
IBM Concert versions 1.0.0 through 2.1.0 contain a server-side request forgery (SSRF) vulnerability that allows authenticated attackers to make unauthorized requests from the server. This could enable network scanning, internal service enumeration, or facilitate other attacks. Organizations running affected IBM Concert versions are at risk.
💻 Affected Systems
- IBM Concert
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attacker gains access to internal systems, exfiltrates sensitive data, or uses the server as a pivot point for lateral movement within the network.
Likely Case
Internal network enumeration, scanning of internal services, or accessing metadata services that could lead to credential exposure.
If Mitigated
Limited impact due to network segmentation, proper authentication controls, and request filtering.
🎯 Exploit Status
SSRF vulnerabilities are typically straightforward to exploit once the attack vector is identified. Requires authenticated access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.1.1 or later
Vendor Advisory: https://www.ibm.com/support/pages/node/7260162
Restart Required: Yes
Instructions:
1. Review IBM advisory. 2. Download and install IBM Concert version 2.1.1 or later. 3. Restart the Concert service. 4. Verify the update was successful.
🔧 Temporary Workarounds
Network Segmentation
allRestrict outbound network access from IBM Concert servers to only necessary destinations
Input Validation
allImplement strict input validation on all URL parameters and request fields
🧯 If You Can't Patch
- Implement strict network egress filtering to limit outbound connections from IBM Concert servers
- Monitor for unusual outbound network traffic patterns from Concert servers
🔍 How to Verify
Check if Vulnerable:
Check IBM Concert version via administrative interface or configuration files. Versions 1.0.0 through 2.1.0 are vulnerable.Check Version:
Check application configuration or administrative console for version informationVerify Fix Applied:
Verify version is 2.1.1 or later and test SSRF functionality is no longer exploitable.📡 Detection & Monitoring
Log Indicators:
- Unusual outbound HTTP requests from Concert server
- Requests to internal IP addresses or metadata services
- Multiple failed outbound connection attempts
Network Indicators:
- Unexpected outbound traffic from Concert servers to internal systems
- Requests to cloud metadata endpoints (169.254.169.254, etc.)
- Port scanning patterns originating from Concert servers
SIEM Query:
source="ibm-concert-logs" AND (dest_ip=169.254.169.254 OR dest_ip IN [10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16])