CVE-2025-34024
📋 TL;DR
An authenticated OS command injection vulnerability in Edimax EW-7438RPn firmware allows attackers to execute arbitrary commands as root via the mp.asp form handler. This affects firmware version 1.13 and earlier. Organizations using these vulnerable range extenders are at risk of complete device compromise.
💻 Affected Systems
- Edimax EW-7438RPn Mini Wi-Fi Range Extender
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full root-level compromise of the device, allowing attackers to install persistent backdoors, pivot to internal networks, intercept traffic, or use the device for botnet activities.
Likely Case
Device takeover leading to network reconnaissance, credential harvesting, or launching attacks against other internal systems.
If Mitigated
Limited impact if device is isolated in a separate VLAN with strict network segmentation and access controls.
🎯 Exploit Status
Exploit code is publicly available on Exploit-DB. Shadowserver observed exploitation in the wild on 2024-09-14.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.edimax.com/edimax/merchandise/merchandise_detail/data/edimax/global/wi-fi_range_extenders_n300/ew-7438rpn_mini/
Restart Required: Yes
Instructions:
1. Check Edimax website for firmware updates. 2. Download latest firmware. 3. Log into device web interface. 4. Navigate to firmware upgrade section. 5. Upload and apply new firmware. 6. Reboot device.
🔧 Temporary Workarounds
Disable Web Interface
allDisable the vulnerable web interface if not needed for management
Network Segmentation
allIsolate the device in a separate VLAN with restricted access
🧯 If You Can't Patch
- Change default credentials and implement strong authentication
- Restrict web interface access to specific management IP addresses only
🔍 How to Verify
Check if Vulnerable:
Check firmware version via web interface: System > Firmware Upgrade. If version is 1.13 or lower, device is vulnerable.Check Version:
curl -s http://device-ip/status.asp | grep -i firmwareVerify Fix Applied:
Verify firmware version is higher than 1.13. Test the /goform/mp endpoint with safe payloads to confirm command injection is no longer possible.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /goform/mp
- Commands with shell metacharacters in web logs
- Multiple failed authentication attempts followed by successful login
Network Indicators:
- Unusual outbound connections from the device
- Traffic to known malicious IPs
- Unexpected SSH or telnet connections originating from the device
SIEM Query:
source="web_logs" AND (uri="/goform/mp" OR uri="/mp.asp") AND (method="POST") AND (user_agent CONTAINS "curl" OR user_agent CONTAINS "wget" OR user_agent CONTAINS "python")🔗 References
- https://vulncheck.com/advisories/edimax-ew-7438rpn-command-injections
- https://www.broadcom.com/support/security-center/attacksignatures/detail?asid=32163
- https://www.edimax.com/edimax/merchandise/merchandise_detail/data/edimax/global/wi-fi_range_extenders_n300/ew-7438rpn_mini/
- https://www.exploit-db.com/exploits/48377
