CVE-2022-25569
📋 TL;DR
Bettini Srl GAMS Product Line v4.3.0 uses the same static SSH private key across all installations, allowing attackers to extract the key from the software and gain root access to affected systems. This affects all installations of the vulnerable version. Attackers can exploit this without authentication.
💻 Affected Systems
- Bettini Srl GAMS Product Line
📦 What is this software?
Sgsetup by Bettinivideo
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with root access, data theft, ransomware deployment, and use as pivot point for lateral movement.
Likely Case
Unauthorized root access leading to data exfiltration, installation of backdoors, and system manipulation.
If Mitigated
Limited impact if SSH access is blocked at network perimeter and systems are isolated.
🎯 Exploit Status
Attack requires extracting the static SSH key from the software package and using standard SSH client tools.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: No vendor advisory found
Restart Required: No
Instructions:
Contact vendor for updated version. If unavailable, implement workarounds immediately.
🔧 Temporary Workarounds
Disable SSH root login
linuxPrevent root login via SSH in sshd_config
echo 'PermitRootLogin no' >> /etc/ssh/sshd_config
systemctl restart sshd
Change SSH keys
linuxGenerate and deploy new SSH host keys
rm /etc/ssh/ssh_host_*
dpkg-reconfigure openssh-server
systemctl restart sshd
Block SSH access
linuxUse firewall to restrict SSH access to trusted IPs only
iptables -A INPUT -p tcp --dport 22 -s TRUSTED_IP -j ACCEPT
iptables -A INPUT -p tcp --dport 22 -j DROP
🧯 If You Can't Patch
- Isolate affected systems in separate network segment with strict access controls
- Implement multi-factor authentication and monitor all SSH access attempts
🔍 How to Verify
Check if Vulnerable:
Check if running GAMS Product Line v4.3.0 and examine SSH host keys for known static valuesCheck Version:
Check software documentation or contact vendor for version informationVerify Fix Applied:
Verify SSH host keys have been changed and root login is disabled in sshd_config📡 Detection & Monitoring
Log Indicators:
- Failed SSH login attempts followed by successful root login
- SSH connections from unexpected sources
Network Indicators:
- SSH traffic to affected systems from unauthorized IPs
- Unusual SSH session patterns
SIEM Query:
source="sshd" AND (user="root" OR auth_method="publickey") | stats count by src_ip