CVE-2024-6784
📋 TL;DR
This CVE describes a Server-Side Request Forgery (SSRF) vulnerability in ABB industrial control system products that allows attackers to make the server send unauthorized requests to internal or external systems. This can lead to information disclosure, internal network reconnaissance, or access to restricted resources. Affected systems include ABB ASPECT-Enterprise, NEXUS Series, and MATRIX Series version 3.08.02.
💻 Affected Systems
- ABB ASPECT-Enterprise
- ABB NEXUS Series
- ABB MATRIX Series
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could access internal systems, retrieve sensitive data, pivot to other critical infrastructure, or perform denial-of-service attacks against internal services.
Likely Case
Information disclosure of internal network resources, metadata about internal systems, or limited access to adjacent services.
If Mitigated
Limited impact if network segmentation prevents access to sensitive systems and input validation blocks malicious requests.
🎯 Exploit Status
SSRF vulnerabilities typically have low exploitation complexity once the vulnerable endpoint is identified. Authentication requirements are not specified in the advisory.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Contact ABB for updated version
Vendor Advisory: https://search.abb.com/library/Download.aspx?DocumentID=9AKK108469A7497&LanguageCode=en&DocumentPartId=&Action=Launch
Restart Required: Yes
Instructions:
1. Contact ABB support for patched version. 2. Backup system configuration. 3. Apply update following ABB's instructions. 4. Restart affected systems. 5. Verify functionality.
🔧 Temporary Workarounds
Network Segmentation
allRestrict outbound network access from affected systems to only necessary destinations
Input Validation
allImplement strict validation of user-supplied URLs and restrict allowed protocols/schemes
🧯 If You Can't Patch
- Implement strict network segmentation to isolate affected systems
- Deploy web application firewall with SSRF protection rules
🔍 How to Verify
Check if Vulnerable:
Check system version in ABB management interface. If version is 3.08.02, system is vulnerable.Check Version:
Check via ABB management interface or contact ABB supportVerify Fix Applied:
Verify updated version number in management interface and test SSRF functionality is blocked.📡 Detection & Monitoring
Log Indicators:
- Unusual outbound HTTP requests from server
- Requests to internal IP addresses or unusual domains
- Failed authentication attempts followed by SSRF patterns
Network Indicators:
- Outbound requests from industrial systems to unexpected destinations
- HTTP requests with unusual parameters or headers
SIEM Query:
source="ABB_System" AND (url="*://192.168.*" OR url="*://10.*" OR url="*://127.*" OR url="*://169.254.*")