CVE-2024-37023

9.1 CRITICAL

📋 TL;DR

This vulnerability allows authenticated remote attackers to execute arbitrary operating system commands on Vonets industrial WiFi bridge devices. Attackers can inject malicious commands through various endpoint parameters, potentially gaining full control of affected devices. Organizations using Vonets WiFi bridge relays and repeaters with software version 3.3.23.6.9 or earlier are affected.

💻 Affected Systems

Products:
  • Vonets industrial WiFi bridge relays
  • Vonets WiFi bridge repeaters
Versions: 3.3.23.6.9 and prior
Operating Systems: Embedded Linux
Default Config Vulnerable: ⚠️ Yes
Notes: Requires authenticated access, but default credentials may be used. Affects industrial control system environments.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete device compromise allowing attackers to pivot to internal networks, deploy ransomware, exfiltrate sensitive industrial data, or cause physical disruption in industrial environments.

🟠

Likely Case

Attackers gain persistent access to network infrastructure, install backdoors, intercept network traffic, and use devices as footholds for lateral movement.

🟢

If Mitigated

Limited impact due to network segmentation, strong authentication controls, and monitoring that detects command injection attempts.

🌐 Internet-Facing: HIGH
🏢 Internal Only: HIGH

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires authentication but command injection is straightforward once authenticated. Industrial control system targeting makes weaponization likely.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Versions after 3.3.23.6.9

Vendor Advisory: https://www.cisa.gov/news-events/ics-advisories/icsa-24-214-08

Restart Required: Yes

Instructions:

1. Check current firmware version. 2. Contact Vonets for updated firmware. 3. Backup configuration. 4. Apply firmware update. 5. Reboot device. 6. Verify update success.

🔧 Temporary Workarounds

Network Segmentation

all

Isolate Vonets devices in separate network segments with strict firewall rules

Authentication Hardening

all

Change default credentials and implement strong authentication policies

🧯 If You Can't Patch

  • Immediately isolate affected devices from critical networks and internet access
  • Implement strict network monitoring and alerting for command injection patterns

🔍 How to Verify

Check if Vulnerable:

Check device web interface or CLI for firmware version 3.3.23.6.9 or earlier

Check Version:

Check device web interface at System > Firmware or use vendor-specific CLI commands

Verify Fix Applied:

Verify firmware version is updated beyond 3.3.23.6.9 and test command injection attempts fail

📡 Detection & Monitoring

Log Indicators:

  • Unusual command execution patterns in device logs
  • Multiple failed authentication attempts followed by successful login

Network Indicators:

  • Unusual outbound connections from Vonets devices
  • Command injection patterns in HTTP requests to device management interfaces

SIEM Query:

source="vonets_device" AND (command="*;*" OR command="*|*" OR command="*`*" OR command="*$(*")

🔗 References

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