CVE-2025-36529

7.2 HIGH

📋 TL;DR

This CVE describes an OS command injection vulnerability in TB-eye network recorders and AHD recorders that allows authenticated attackers to execute arbitrary operating system commands. The vulnerability affects multiple versions of these surveillance/recording devices and could lead to complete system compromise.

💻 Affected Systems

Products:
  • TB-eye network recorders
  • TB-eye AHD recorders
Versions: Multiple versions (specific versions not detailed in provided references)
Operating Systems: Embedded Linux-based systems
Default Config Vulnerable: ⚠️ Yes
Notes: Affects devices with web management interfaces where authenticated users can inject OS commands.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system takeover, data exfiltration, lateral movement to other network devices, installation of persistent backdoors, and disruption of surveillance operations.

🟠

Likely Case

Unauthorized access to recorded footage, system configuration changes, credential theft, and potential use as a foothold for further network attacks.

🟢

If Mitigated

Limited impact with proper network segmentation, strong authentication controls, and monitoring in place.

🌐 Internet-Facing: HIGH - If devices are exposed to the internet, attackers can exploit this after authentication to gain full control.
🏢 Internal Only: MEDIUM - Requires authenticated access, but internal attackers or compromised accounts could exploit this for privilege escalation.

🎯 Exploit Status

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

Requires authenticated access but command injection vulnerabilities are typically easy to exploit once identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check vendor advisory for specific patched versions

Vendor Advisory: https://www.tbeye.com/topics/ahd/

Restart Required: Yes

Instructions:

1. Check the vendor advisory for affected versions. 2. Download the latest firmware from TB-eye. 3. Backup device configuration. 4. Apply firmware update through web interface. 5. Restart device. 6. Verify update was successful.

🔧 Temporary Workarounds

Network Segmentation

all

Isolate TB-eye devices from other network segments and restrict access to management interfaces.

Access Control Restrictions

all

Implement strict authentication controls, use strong passwords, and limit administrative access to trusted IPs only.

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate vulnerable devices from critical systems
  • Enable detailed logging and monitoring for suspicious command execution attempts

🔍 How to Verify

Check if Vulnerable:

Check device firmware version against vendor advisory. Devices with vulnerable firmware versions are affected.

Check Version:

Check version through device web interface or consult device documentation for CLI commands

Verify Fix Applied:

Verify firmware version has been updated to patched version specified in vendor advisory.

📡 Detection & Monitoring

Log Indicators:

  • Unusual command execution patterns
  • Multiple failed authentication attempts followed by successful login
  • Suspicious process creation

Network Indicators:

  • Unusual outbound connections from recorder devices
  • Traffic to unexpected ports or IPs

SIEM Query:

source="tbeye_recorder" AND (event_type="command_execution" OR process_name="sh" OR process_name="bash")

🔗 References

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