CVE-2025-69929

9.8 CRITICAL

📋 TL;DR

This vulnerability in N3uron Web User Interface v1.21.7-240207.1047 allows remote attackers to escalate privileges by exploiting weak client-side password hashing using MD5 with predictable string formats. Attackers can potentially gain administrative access to the system. Organizations using this specific version of N3uron Web User Interface are affected.

💻 Affected Systems

Products:
  • N3uron Web User Interface
Versions: v1.21.7-240207.1047
Operating Systems: Not specified - likely cross-platform
Default Config Vulnerable: ⚠️ Yes
Notes: Vulnerability exists in the specific build version mentioned; other versions may also be affected but not confirmed.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise with administrative privileges, allowing data theft, system manipulation, and lateral movement within the network.

🟠

Likely Case

Unauthorized privilege escalation leading to unauthorized access to sensitive system functions and data.

🟢

If Mitigated

Limited impact if strong network segmentation, monitoring, and authentication controls are implemented.

🌐 Internet-Facing: HIGH - Remote exploitation possible if interface is exposed to internet.
🏢 Internal Only: HIGH - Even internally, attackers could escalate privileges once they gain initial access.

🎯 Exploit Status

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

Exploit details available in public gist; requires some authentication but privilege escalation is straightforward once initial access is obtained.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not available

Vendor Advisory: http://n3uron.com

Restart Required: No

Instructions:

1. Check vendor website for security updates. 2. If patch available, download and apply following vendor instructions. 3. Verify fix implementation.

🔧 Temporary Workarounds

Disable vulnerable interface

all

Temporarily disable N3uron Web User Interface until patch is available

# System-specific commands to disable web service

Network segmentation

all

Restrict access to N3uron interface to trusted IPs only

# Firewall rules to restrict access to specific IP ranges

🧯 If You Can't Patch

  • Implement strict network access controls to limit who can reach the N3uron interface
  • Enable detailed logging and monitoring for authentication and privilege escalation attempts

🔍 How to Verify

Check if Vulnerable:

Check N3uron Web User Interface version; if it matches v1.21.7-240207.1047, system is vulnerable.

Check Version:

# Check N3uron interface version through web interface or configuration files

Verify Fix Applied:

Verify version has been updated to a patched release from vendor.

📡 Detection & Monitoring

Log Indicators:

  • Unusual authentication patterns
  • Multiple failed login attempts followed by successful privilege escalation
  • Administrative actions from non-admin accounts

Network Indicators:

  • Unusual traffic patterns to N3uron web interface
  • Authentication requests with predictable hash patterns

SIEM Query:

Search for: (event_type="authentication" AND application="N3uron") OR (privilege_escalation AND source_application="N3uron")

🔗 References

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