CVE-2025-43953
📋 TL;DR
This vulnerability allows authenticated admin and manager users of 2wcom IP-4c devices to execute arbitrary code with root privileges through the web interface's ping/traceroute functionality. It affects systems running version 2.16 of the software, enabling complete system compromise.
💻 Affected Systems
- 2wcom IP-4c
⚠️ 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.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Full system takeover with root access, allowing installation of persistent backdoors, data theft, or use as a pivot point in the network.
Likely Case
Attackers with valid credentials can execute arbitrary commands as root, potentially compromising the entire device and connected systems.
If Mitigated
With proper network segmentation and credential protection, impact is limited to the affected device only.
🎯 Exploit Status
Exploit requires valid credentials but is straightforward once authenticated. GitHub repository contains research details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://2wcom.com
Restart Required: No
Instructions:
Check vendor website for security updates. No official patch confirmed at this time.
🔧 Temporary Workarounds
Disable web interface access
linuxBlock access to the web interface from untrusted networks
iptables -A INPUT -p tcp --dport 80 -j DROP
iptables -A INPUT -p tcp --dport 443 -j DROP
Restrict user privileges
allRemove admin/manager privileges from unnecessary users
🧯 If You Can't Patch
- Implement strict network segmentation to isolate affected devices
- Enforce strong authentication and monitor for suspicious admin activity
🔍 How to Verify
Check if Vulnerable:
Check if device runs version 2.16 and has web interface accessible. Test authenticated command injection via ping/traceroute fields.Check Version:
Check web interface system information page or device documentationVerify Fix Applied:
Verify web interface no longer executes arbitrary commands through ping/traceroute functionality.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution via web interface
- Multiple failed authentication attempts followed by successful login
- Suspicious ping/traceroute requests with command injection patterns
Network Indicators:
- Unusual outbound connections from device after web interface access
- Traffic to unexpected ports or IPs
SIEM Query:
source="web_logs" AND (url="*ping*" OR url="*traceroute*") AND (message="*;*" OR message="*|*" OR message="*`*")