CVE-2016-10307

9.8 CRITICAL

📋 TL;DR

Trango wireless devices have a hidden root account with a publicly known MD5 hash for the default password, allowing attackers to gain full administrative control via SSH/TELNET. This affects organizations using Trango ApexLynx, ApexOrion, GigaLynx, GigaOrion, and StrataLink devices for wireless networking.

💻 Affected Systems

Products:
  • Trango ApexLynx
  • Trango ApexOrion
  • Trango GigaLynx
  • Trango GigaOrion
  • Trango StrataLink
Versions: 2.0 for ApexLynx, ApexOrion, GigaLynx, GigaOrion; 3.0 for StrataLink
Operating Systems: Embedded UNIX OS
Default Config Vulnerable: ⚠️ Yes
Notes: All devices with default configurations are vulnerable. The hidden root account exists by design.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete device takeover leading to network compromise, data interception, and use as pivot point for lateral movement.

🟠

Likely Case

Unauthorized administrative access allowing configuration changes, traffic monitoring, and device disruption.

🟢

If Mitigated

Limited impact if devices are isolated, monitored, and have strong network controls.

🌐 Internet-Facing: HIGH - Devices exposed to internet can be directly compromised without authentication.
🏢 Internal Only: HIGH - Internal attackers or malware can exploit this to gain foothold in network.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: CONFIRMED
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Attackers only need to connect via SSH/TELNET and use the known MD5 hash. No authentication bypass needed.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: No official vendor advisory found

Restart Required: No

Instructions:

No official patch available. Contact Trango support for guidance.

🔧 Temporary Workarounds

Disable SSH/TELNET access

all

Disable remote SSH and TELNET access to prevent exploitation

Configure device to disable SSH/TELNET services

Network isolation

all

Place devices in isolated network segments with strict firewall rules

Configure firewall to restrict access to device management interfaces

🧯 If You Can't Patch

  • Remove devices from internet-facing positions immediately
  • Implement strict network segmentation and monitor all access attempts to these devices

🔍 How to Verify

Check if Vulnerable:

Attempt SSH/TELNET connection to device and try known MD5 hash for root account

Check Version:

Check device firmware version via web interface or serial console

Verify Fix Applied:

Verify SSH/TELNET services are disabled or access is properly restricted

📡 Detection & Monitoring

Log Indicators:

  • Failed SSH/TELNET login attempts
  • Successful root logins from unexpected sources
  • Configuration changes

Network Indicators:

  • SSH/TELNET connections to device management interfaces
  • Unusual outbound traffic from devices

SIEM Query:

source_ip=* AND (port=22 OR port=23) AND dest_ip=[device_ip] AND action=success

🔗 References

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