CVE-2025-27663
📋 TL;DR
CVE-2025-27663 is a critical authentication vulnerability in Vasion Print (formerly PrinterLogic) that uses weak password encryption/encoding, potentially allowing attackers to decrypt or bypass authentication. This affects organizations using Vasion Print Virtual Appliance Host before version 22.0.843 and Application before 20.0.1923. Attackers could gain administrative access to the print management system.
💻 Affected Systems
- Vasion Print
- PrinterLogic Virtual Appliance
📦 What is this software?
Vasion Print by Printerlogic
Virtual Appliance by Printerlogic
⚠️ Risk & Real-World Impact
Worst Case
Full compromise of the print management system leading to domain credential theft, lateral movement across the network, installation of persistent backdoors, and disruption of printing services across the organization.
Likely Case
Unauthorized administrative access to the print management console allowing configuration changes, installation of malicious print drivers, and potential access to user print job data.
If Mitigated
Limited impact with proper network segmentation, strong authentication controls, and monitoring in place, though the vulnerability still presents a significant security risk.
🎯 Exploit Status
Weak password encryption vulnerabilities typically require minimal technical skill to exploit once the weakness is understood. The OVE-20230524-0007 identifier suggests this has been known to researchers since May 2023.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Virtual Appliance Host 22.0.843 or later, Application 20.0.1923 or later
Vendor Advisory: https://help.printerlogic.com/saas/Print/Security/Security-Bulletins.htm
Restart Required: Yes
Instructions:
1. Backup current configuration and data. 2. Download the latest Virtual Appliance Host and Application updates from Vasion support portal. 3. Apply the Virtual Appliance Host update first. 4. Apply the Application update. 5. Restart the virtual appliance. 6. Verify all services are running correctly.
🔧 Temporary Workarounds
Network Segmentation
allIsolate the Vasion Print appliance from general network access and restrict access to authorized administrative IPs only.
Access Control Lists
allImplement strict firewall rules to limit access to the Vasion Print management interface.
# Example iptables rule (Linux): iptables -A INPUT -p tcp --dport [VASION_PORT] -s [TRUSTED_IP] -j ACCEPT
# Example Windows Firewall: New-NetFirewallRule -DisplayName "Vasion Access" -Direction Inbound -Protocol TCP -LocalPort [VASION_PORT] -RemoteAddress [TRUSTED_IP] -Action Allow
🧯 If You Can't Patch
- Immediately change all administrative passwords to strong, unique credentials and enable multi-factor authentication if supported.
- Implement network monitoring and alerting for unusual access patterns to the Vasion Print management interface.
🔍 How to Verify
Check if Vulnerable:
Check the Virtual Appliance Host and Application versions in the Vasion Print administration console under System Information or About sections.Check Version:
# SSH to the virtual appliance and check versions: cat /opt/printerlogic/version.txt || grep -i version /opt/printerlogic/*.propertiesVerify Fix Applied:
Verify that both Virtual Appliance Host version is 22.0.843 or higher AND Application version is 20.0.1923 or higher in the administration console.📡 Detection & Monitoring
Log Indicators:
- Multiple failed authentication attempts followed by successful login from unusual IPs
- Administrative configuration changes from non-standard user accounts or IP addresses
- Unusual print driver installations or modifications
Network Indicators:
- Unusual traffic patterns to the Vasion Print management port (typically 443 or custom port)
- Connection attempts from external IP addresses to internal print management systems
- Brute force patterns against authentication endpoints
SIEM Query:
source="vasion_logs" AND (event_type="auth_success" AND src_ip NOT IN ["10.0.0.0/8", "192.168.0.0/16", "172.16.0.0/12"]) OR (event_type="config_change" AND user!="admin")