CVE-2025-34200
📋 TL;DR
Vasion Print (formerly PrinterLogic) Virtual Appliance stores network account credentials in clear-text in the world-readable /etc/issue file. An attacker with local shell access can read these credentials and potentially disrupt network operations or escalate privileges. This affects VA and SaaS deployments of the appliance.
💻 Affected Systems
- Vasion Print Virtual Appliance Host and Application
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attacker gains network account access, reconfigures network settings to disrupt operations, pivots to other systems, or escalates to full appliance compromise.
Likely Case
Local attacker reads credentials and modifies network parameters causing service disruption or misconfiguration.
If Mitigated
With proper access controls, impact limited to credential exposure without ability to use them for further attacks.
🎯 Exploit Status
Exploitation requires local shell access first, then simple file read operation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific patched versions
Vendor Advisory: https://help.printerlogic.com/saas/Print/Security/Security-Bulletins.htm
Restart Required: Yes
Instructions:
1. Apply vendor patch for Vasion Print Virtual Appliance. 2. Restart appliance. 3. Verify credentials are no longer stored in /etc/issue.
🔧 Temporary Workarounds
Remove credentials from /etc/issue
linuxManually edit /etc/issue to remove clear-text credentials
sudo vi /etc/issue
Remove any lines containing username/password credentials
Restrict /etc/issue permissions
linuxChange file permissions to restrict read access
sudo chmod 600 /etc/issue
🧯 If You Can't Patch
- Implement strict access controls to prevent unauthorized local shell access
- Monitor /etc/issue file for unauthorized modifications and credential exposure
🔍 How to Verify
Check if Vulnerable:
Check if /etc/issue contains clear-text credentials: cat /etc/issue | grep -i 'password\|user\|credential'Check Version:
Check appliance version via web interface or vendor documentationVerify Fix Applied:
Verify /etc/issue no longer contains credentials and has appropriate permissions: ls -la /etc/issue && cat /etc/issue📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts to network account
- Unauthorized access to /etc/issue file
- Changes to network configuration
Network Indicators:
- Unexpected network configuration changes
- Appliance interface access from unusual locations
SIEM Query:
source="/var/log/auth.log" AND ("Failed password" OR "authentication failure") AND user="network_account_name"🔗 References
- https://help.printerlogic.com/saas/Print/Security/Security-Bulletins.htm
- https://help.printerlogic.com/va/Print/Security/Security-Bulletins.htm
- https://pierrekim.github.io/blog/2025-04-08-vasion-printerlogic-83-vulnerabilities.html#va-clear-text-password
- https://www.vulncheck.com/advisories/vasion-print-printerlogic-network-account-password-stored-in-cleartext
