CVE-2024-54749
📋 TL;DR
Ubiquiti U7-Pro access points contain a hardcoded password in their firmware that could allow attackers to gain root access. This primarily affects users who haven't changed default credentials during device setup. The vendor disputes the severity, noting proper installation requires setting a new password.
💻 Affected Systems
- Ubiquiti U7-Pro
⚠️ 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 device compromise allowing attackers to intercept network traffic, deploy malware, pivot to other network devices, and maintain persistent access.
Likely Case
Unauthorized administrative access to the access point for attackers with physical or network access, potentially leading to network eavesdropping or configuration changes.
If Mitigated
Minimal impact if users followed installation instructions to set unique passwords, as the hardcoded credential would be replaced.
🎯 Exploit Status
Exploitation requires knowledge of the hardcoded password and network/physical access to the device.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Follow vendor's installation instructions to set unique passwords during setup.
🔧 Temporary Workarounds
Change Root Password
linuxManually change the root password to a strong, unique credential
passwd root
Disable Root SSH Access
linuxPrevent SSH access as root user
Edit /etc/ssh/sshd_config: PermitRootLogin no
systemctl restart sshd
🧯 If You Can't Patch
- Ensure all Ubiquiti devices have unique, strong passwords set during installation
- Segment network to restrict access to management interfaces
🔍 How to Verify
Check if Vulnerable:
Check if default/weak passwords are still active by attempting SSH login with known credentials or examining /etc/shadow fileCheck Version:
ssh root@device_ip 'cat /etc/version'Verify Fix Applied:
Verify root password has been changed by attempting SSH login with old credentials (should fail) and checking /etc/shadow hash📡 Detection & Monitoring
Log Indicators:
- Failed SSH authentication attempts followed by successful root login
- Multiple root login attempts from unusual sources
Network Indicators:
- SSH connections to device management interface from unauthorized IPs
- Unusual outbound traffic from access point
SIEM Query:
source="auth.log" ("Failed password for root" AND "Accepted password for root")