CVE-2024-39739
📋 TL;DR
This CVE describes a server-side request forgery (SSRF) vulnerability in IBM Datacap Navigator versions 9.1.5 through 9.1.9. An authenticated attacker could exploit this to make unauthorized requests from the vulnerable server, potentially accessing internal network resources or facilitating other attacks. Only users with authenticated access to affected IBM Datacap Navigator instances are at risk.
💻 Affected Systems
- IBM Datacap Navigator
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An attacker could use the vulnerable server as a proxy to access internal systems, exfiltrate sensitive data, or pivot to launch attacks against other internal network resources.
Likely Case
Network enumeration of internal systems, scanning of internal services, or accessing metadata services that could lead to credential theft.
If Mitigated
Limited impact due to network segmentation, proper authentication controls, and monitoring of outbound requests from the server.
🎯 Exploit Status
SSRF vulnerabilities typically have low exploitation complexity once the vulnerable endpoint is identified. Requires authenticated access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply the latest fix pack for your version as specified in IBM advisory
Vendor Advisory: https://www.ibm.com/support/pages/node/7160185
Restart Required: Yes
Instructions:
1. Review IBM advisory at https://www.ibm.com/support/pages/node/7160185. 2. Download and apply the appropriate fix pack for your Datacap Navigator version. 3. Restart the Datacap Navigator service. 4. Verify the fix by testing SSRF attempts.
🔧 Temporary Workarounds
Network Segmentation
allRestrict outbound network access from the Datacap Navigator server to only necessary destinations
Authentication Hardening
allImplement strict authentication controls and monitor for suspicious authenticated sessions
🧯 If You Can't Patch
- Implement network controls to restrict the Datacap Navigator server's outbound connections to only authorized destinations
- Enhance monitoring of authenticated user activity and outbound network requests from the server
🔍 How to Verify
Check if Vulnerable:
Check your IBM Datacap Navigator version. If it's 9.1.5 through 9.1.9, you are vulnerable.Check Version:
Check the Datacap Navigator administration interface or installation logs for version informationVerify Fix Applied:
After applying the fix pack, verify the version is updated and test SSRF attempts against known vulnerable endpoints.📡 Detection & Monitoring
Log Indicators:
- Unusual outbound HTTP requests from the Datacap Navigator server
- Multiple failed authentication attempts followed by successful login and unusual requests
Network Indicators:
- Unexpected outbound connections from the Datacap Navigator server to internal network resources
- HTTP requests to internal IP addresses or metadata services
SIEM Query:
source="datacap_logs" AND (outbound_request="http://internal*" OR outbound_request="http://169.254*" OR outbound_request="http://10.*" OR outbound_request="http://172.16-31.*" OR outbound_request="http://192.168.*")