CVE-2025-25211

9.8 CRITICAL

📋 TL;DR

CVE-2025-25211 is a weak password requirements vulnerability in CHOCO TEI WATCHER mini (IB-MCT001) industrial cameras that allows brute-force attacks to gain unauthorized access. This affects all versions of the device, potentially compromising production line surveillance systems and allowing attackers to disable recording or conduct remote surveillance.

💻 Affected Systems

Products:
  • CHOCO TEI WATCHER mini (IB-MCT001)
Versions: All versions
Operating Systems: Embedded firmware
Default Config Vulnerable: ⚠️ Yes
Notes: This is an industrial camera device used in production line monitoring. The vulnerability exists in the authentication mechanism.

⚠️ 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

Attackers gain administrative access to industrial cameras, disable recording during critical incidents, conduct unauthorized surveillance of production lines, and potentially pivot to other industrial control systems.

🟠

Likely Case

Unauthorized access to camera feeds allowing industrial espionage, disruption of security monitoring, and potential manipulation of recording functions.

🟢

If Mitigated

Limited to failed login attempts with no successful access if strong password policies and network segmentation are implemented.

🌐 Internet-Facing: HIGH - Devices exposed to internet are directly vulnerable to automated brute-force attacks from anywhere.
🏢 Internal Only: MEDIUM - Internal attackers or compromised internal systems could exploit this, but requires network access to the devices.

🎯 Exploit Status

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

Brute-force attacks require no authentication and can be automated with standard tools. The vulnerability is well-documented in multiple advisories.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: None available

Vendor Advisory: https://www.inaba.co.jp/files/chocomini_vulnerability.pdf

Restart Required: No

Instructions:

No official patch is available. Follow workarounds and mitigation steps below.

🔧 Temporary Workarounds

Implement Strong Password Policy

all

Enforce complex passwords with minimum length, special characters, and account lockout after failed attempts.

Network Segmentation

all

Isolate cameras on separate VLANs with strict firewall rules limiting access to authorized management systems only.

🧯 If You Can't Patch

  • Implement network access controls to restrict camera access to specific IP addresses only
  • Deploy intrusion detection systems to monitor for brute-force attempts and alert on suspicious activity

🔍 How to Verify

Check if Vulnerable:

Check device model and version. If using CHOCO TEI WATCHER mini (IB-MCT001), assume vulnerable. Test with controlled brute-force attempt (with permission) to confirm weak password enforcement.

Check Version:

Check device web interface or documentation for model IB-MCT001 identification.

Verify Fix Applied:

Verify strong password policies are enforced by attempting weak passwords and confirming they're rejected. Test account lockout functionality.

📡 Detection & Monitoring

Log Indicators:

  • Multiple failed login attempts from single IP
  • Successful logins from unusual IP addresses
  • Authentication logs showing weak password acceptance

Network Indicators:

  • High volume of HTTP POST requests to login endpoints
  • Traffic patterns consistent with brute-force tools

SIEM Query:

source="camera_logs" AND (event_type="authentication_failure" AND count > 10 within 5min) OR (event_type="authentication_success" AND src_ip NOT IN allowed_ips)

🔗 References

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