CVE-2025-60964

9.1 CRITICAL

📋 TL;DR

This CVE describes an OS command injection vulnerability in EndRun Technologies Sonoma D12 Network Time Server firmware that allows attackers to execute arbitrary commands on the device. The vulnerability affects systems running firmware version 4.00 (F/W 6010-0071-000 Ver 4.00) and can lead to complete system compromise. Organizations using these network time servers for time synchronization are at risk.

💻 Affected Systems

Products:
  • EndRun Technologies Sonoma D12 Network Time Server (GPS)
Versions: F/W 6010-0071-000 Ver 4.00
Operating Systems: Embedded firmware
Default Config Vulnerable: ⚠️ Yes
Notes: The vulnerability exists in the firmware itself, so all devices running this version are affected regardless of configuration.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system takeover allowing attackers to execute arbitrary commands, install persistent backdoors, disrupt time synchronization services across the network, and pivot to other systems.

🟠

Likely Case

Attackers gain remote code execution, potentially disrupting NTP services and using the device as a foothold for lateral movement within the network.

🟢

If Mitigated

Limited impact if device is isolated behind firewalls with strict network segmentation and input validation controls.

🌐 Internet-Facing: HIGH - Network time servers are often exposed to manage time synchronization, making them accessible to attackers.
🏢 Internal Only: MEDIUM - Internal attackers or compromised systems could exploit this vulnerability to gain foothold in critical infrastructure.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

OS command injection vulnerabilities typically have low exploitation complexity once the injection point is identified. The advisory suggests unauthenticated exploitation is possible.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: http://endrun.com

Restart Required: Yes

Instructions:

1. Check EndRun Technologies website for security advisories
2. Download updated firmware if available
3. Backup current configuration
4. Apply firmware update following vendor instructions
5. Verify update was successful
6. Restore configuration if needed

🔧 Temporary Workarounds

Network Segmentation

all

Isolate Sonoma D12 devices behind firewalls with strict inbound/outbound rules

Access Control

all

Restrict management interface access to trusted IP addresses only

🧯 If You Can't Patch

  • Segment the device on a dedicated VLAN with strict firewall rules allowing only necessary NTP traffic
  • Implement network monitoring and intrusion detection specifically for the device's management interface

🔍 How to Verify

Check if Vulnerable:

Check device firmware version via web interface or SSH. Navigate to System > Status or use command 'show version' if CLI access is available.

Check Version:

Check via web interface at System > Status page or use vendor-specific CLI commands if available

Verify Fix Applied:

Verify firmware version has been updated to a version later than 4.00. Check vendor advisory for specific patched version.

📡 Detection & Monitoring

Log Indicators:

  • Unusual command execution in system logs
  • Multiple failed login attempts followed by successful access
  • Unexpected process creation
  • Changes to system configuration files

Network Indicators:

  • Unusual outbound connections from NTP server
  • Traffic to unexpected ports
  • Suspicious payloads in HTTP requests to management interface

SIEM Query:

source="sonoma-d12" AND (event_type="command_execution" OR process_name="sh" OR process_name="bash")

🔗 References

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