CVE-2024-25825
📋 TL;DR
This vulnerability allows attackers to gain root access without authentication on affected FydeOS systems due to a wildcard root password configuration. All users running vulnerable versions of FydeOS for PC, FydeOS for VMware, FydeOS for You, and OpenFyde are affected. This essentially provides full system control to any attacker who can access the system.
💻 Affected Systems
- FydeOS for PC
- FydeOS for VMware
- FydeOS for You
- OpenFyde
⚠️ 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 system compromise with root-level persistence, data theft, ransomware deployment, and use as a pivot point for lateral movement.
Likely Case
Unauthorized root access leading to data exfiltration, system manipulation, and installation of backdoors or malware.
If Mitigated
Limited impact if systems are isolated, have strict network controls, and are regularly monitored for unauthorized access attempts.
🎯 Exploit Status
The vulnerability is trivial to exploit - attackers simply need to attempt root login with any password due to the wildcard configuration. Public proof-of-concept exists in the GitHub gist reference.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after R114
Vendor Advisory: https://openfyde.io/
Restart Required: Yes
Instructions:
1. Update to the latest version of FydeOS/OpenFyde. 2. Check vendor documentation for specific update procedures for your deployment type (PC, VMware, etc.). 3. Reboot the system after update. 4. Verify the root password is properly set or disabled.
🔧 Temporary Workarounds
Set Root Password
linuxManually set a strong root password to override the wildcard configuration
sudo passwd root
Disable Root Login
linuxDisable root login entirely if not needed
sudo passwd -l root
🧯 If You Can't Patch
- Immediately isolate affected systems from networks, especially internet-facing connections
- Implement strict network segmentation and monitor all access attempts to affected systems
🔍 How to Verify
Check if Vulnerable:
Attempt to SSH or local login as root with any password. If successful, the system is vulnerable.Check Version:
cat /etc/os-release | grep VERSIONVerify Fix Applied:
Attempt root login with incorrect password - it should fail. Check that a proper root password is set or root login is disabled.📡 Detection & Monitoring
Log Indicators:
- Successful root login attempts from unexpected sources
- Multiple failed root login attempts followed by success
- Authentication logs showing root access without proper credentials
Network Indicators:
- Unexpected SSH connections to root account
- Network traffic from systems attempting root login
SIEM Query:
source="auth.log" AND (user="root" AND result="success") OR (user="root" AND authentication_method="password")