CVE-2025-5147
📋 TL;DR
This critical vulnerability in Netcore routers allows remote attackers to execute arbitrary commands by injecting malicious input into the 'url' parameter of the tools_ping function. Attackers can potentially take full control of affected devices. Organizations using Netcore NBR1005GPEV2, NBR200V2, or B6V2 routers are affected.
💻 Affected Systems
- Netcore NBR1005GPEV2
- Netcore NBR200V2
- Netcore B6V2
⚠️ 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
Complete device compromise allowing attackers to install persistent backdoors, pivot to internal networks, intercept traffic, or use devices as botnet nodes.
Likely Case
Remote code execution leading to device takeover, credential theft, network reconnaissance, and potential lateral movement.
If Mitigated
Limited impact if devices are behind firewalls with strict inbound filtering and network segmentation.
🎯 Exploit Status
Public exploit code available on GitHub, making exploitation trivial for attackers with basic skills.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: Yes
Instructions:
1. Check vendor website for firmware updates
2. If update available, download and verify checksum
3. Backup current configuration
4. Upload firmware via web interface
5. Reboot device
6. Restore configuration if needed
🔧 Temporary Workarounds
Network Access Control
allRestrict access to router management interface using firewall rules
Disable Unnecessary Services
linuxDisable ping/tools functionality if not required
🧯 If You Can't Patch
- Isolate affected routers in separate VLAN with strict access controls
- Implement network monitoring for suspicious outbound connections from routers
🔍 How to Verify
Check if Vulnerable:
Check firmware version via web interface or SSH: cat /proc/version or check web admin panelCheck Version:
cat /proc/version || grep -i version /etc/*releaseVerify Fix Applied:
Verify firmware version is newer than 20250508 and test ping functionality with malicious input📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Multiple failed ping attempts with unusual parameters
- Process execution from network_tools with suspicious arguments
Network Indicators:
- Outbound connections from router to unusual destinations
- Unexpected SSH or reverse shell connections originating from router
SIEM Query:
source="router_logs" AND ("tools_ping" OR "network_tools") AND (url="*;*" OR url="*|*" OR url="*`*" OR url="*$(*")