CVE-2024-25850
📋 TL;DR
This CVE describes a command injection vulnerability in Netis WF2780 routers that allows attackers to execute arbitrary commands on the device by manipulating the wps_ap_ssid5g parameter. The vulnerability affects users of Netis WF2780 routers with vulnerable firmware versions. Successful exploitation could lead to complete compromise of the router.
💻 Affected Systems
- Netis WF2780
📦 What is this software?
Wf2780 Firmware by Netis Systems
⚠️ Risk & Real-World Impact
Worst Case
Complete router takeover allowing attackers to intercept all network traffic, deploy malware to connected devices, pivot to internal networks, and maintain persistent access.
Likely Case
Router compromise leading to network traffic interception, DNS hijacking, credential theft, and deployment of malware to connected devices.
If Mitigated
Limited impact if router is behind firewall with restricted WAN access, though internal attackers could still exploit if they gain network access.
🎯 Exploit Status
Exploitation requires authentication to the router's web interface. The GitHub reference shows detailed exploitation methodology.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.netis-systems.com/
Restart Required: Yes
Instructions:
1. Check Netis website for firmware updates
2. Download latest firmware for WF2780
3. Access router web interface
4. Navigate to firmware upgrade section
5. Upload and apply new firmware
6. Reboot router
🔧 Temporary Workarounds
Disable WPS functionality
allTurn off WPS feature to remove vulnerable code path
Restrict web interface access
allLimit access to router management interface to trusted IPs only
🧯 If You Can't Patch
- Replace vulnerable router with a different model from a vendor with better security track record
- Place router behind a firewall that blocks all inbound access to management interface
🔍 How to Verify
Check if Vulnerable:
Check router firmware version in web interface. If version is v2.1.40144 or earlier, assume vulnerable.Check Version:
Login to router web interface and check System Status or Firmware Version pageVerify Fix Applied:
After firmware update, verify version number has changed from v2.1.40144. Test WPS functionality to ensure it works without allowing command injection.📡 Detection & Monitoring
Log Indicators:
- Unusual commands in system logs
- Multiple failed login attempts followed by WPS configuration changes
- Suspicious processes running on router
Network Indicators:
- Unusual outbound connections from router
- DNS queries to malicious domains from router
- Traffic redirection patterns
SIEM Query:
source="router_logs" AND ("wps_ap_ssid5g" OR "command injection" OR suspicious shell commands)