CVE-2024-41904
📋 TL;DR
SINEC Traffic Analyzer versions before V2.0 lack proper rate limiting on authentication attempts, allowing unauthenticated attackers to perform brute force attacks against user credentials or keys. This affects all users of SINEC Traffic Analyzer (6GK8822-1BG01-0BA0) running versions older than V2.0.
💻 Affected Systems
- SINEC Traffic Analyzer (6GK8822-1BG01-0BA0)
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could compromise administrative accounts, gain full control of the Traffic Analyzer system, and potentially pivot to other network systems.
Likely Case
Attackers successfully brute force weaker credentials, gaining unauthorized access to monitor or manipulate network traffic data.
If Mitigated
With proper rate limiting and strong credentials, attackers would fail to guess credentials before being blocked.
🎯 Exploit Status
Brute force attacks are well-understood and easily automated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: V2.0
Vendor Advisory: https://cert-portal.siemens.com/productcert/html/ssa-716317.html
Restart Required: Yes
Instructions:
1. Download V2.0 from Siemens support portal. 2. Backup configuration. 3. Install update. 4. Restart system.
🔧 Temporary Workarounds
Network-based rate limiting
allImplement network-level rate limiting or WAF rules to restrict authentication attempts.
Strong credential enforcement
allEnforce complex passwords and account lockout policies via external authentication systems.
🧯 If You Can't Patch
- Isolate the Traffic Analyzer behind a firewall with strict access controls.
- Monitor authentication logs for brute force patterns and implement alerting.
🔍 How to Verify
Check if Vulnerable:
Check the SINEC Traffic Analyzer web interface or system logs for version information.Check Version:
Not specified; check via web interface or Siemens documentation.Verify Fix Applied:
Confirm version is V2.0 or higher in system settings.📡 Detection & Monitoring
Log Indicators:
- Multiple failed login attempts from single IP
- Unusual authentication patterns outside business hours
Network Indicators:
- High volume of HTTP POST requests to login endpoints
- Traffic from unexpected geolocations
SIEM Query:
source="sinec_traffic_analyzer" event_type="authentication_failure" | stats count by src_ip | where count > 10