CVE-2024-6515
📋 TL;DR
This vulnerability in ABB industrial control system web interfaces exposes authentication credentials in clear text or Base64 encoding during transmission. Attackers can intercept these credentials to gain unauthorized access to critical industrial systems. Affected organizations include those using ABB ASPECT, NEXUS, and MATRIX series products.
💻 Affected Systems
- ABB ASPECT - Enterprise
- ABB NEXUS Series
- ABB MATRIX Series
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full compromise of industrial control systems leading to operational disruption, safety hazards, or manipulation of critical infrastructure processes.
Likely Case
Credential theft enabling unauthorized access to industrial control interfaces, potentially allowing configuration changes or data exfiltration.
If Mitigated
Limited impact if network segmentation and encryption prevent credential interception, though risk remains for internal threats.
🎯 Exploit Status
Exploitation requires network access to intercept credentials. No authentication bypass needed if credentials are intercepted during legitimate login.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific patched versions
Vendor Advisory: https://search.abb.com/library/Download.aspx?DocumentID=9AKK108469A7497&LanguageCode=en&DocumentPartId=&Action=Launch
Restart Required: Yes
Instructions:
1. Review ABB advisory for specific patch details. 2. Apply vendor-provided patches or updates. 3. Restart affected systems. 4. Verify credential transmission is now encrypted.
🔧 Temporary Workarounds
Network Segmentation
allIsolate affected systems from untrusted networks to prevent credential interception.
VPN/Encrypted Tunnel
allRequire VPN or encrypted tunnel access to web interfaces.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate affected systems
- Monitor for unusual authentication attempts and credential usage
🔍 How to Verify
Check if Vulnerable:
Use network monitoring tools to capture traffic to web interface and check if credentials are transmitted in clear text or Base64.Check Version:
Check product web interface or system configuration for version information (specific command varies by product).Verify Fix Applied:
Verify credentials are no longer visible in network captures and are transmitted using proper encryption.📡 Detection & Monitoring
Log Indicators:
- Multiple failed login attempts
- Successful logins from unusual IP addresses
- Configuration changes without authorization
Network Indicators:
- Unencrypted HTTP traffic containing authentication data
- Base64 encoded credentials in network packets
SIEM Query:
Search for: (event_type="authentication" AND (protocol="HTTP" OR protocol="unencrypted")) OR (network_traffic CONTAINS "Authorization: Basic" AND NOT destination_port=443)