CVE-2024-22076
📋 TL;DR
CVE-2024-22076 is a critical remote code execution vulnerability in MyQ Print Server that allows authenticated administrators to execute arbitrary PHP code through the administrative interface. This affects organizations using MyQ Print Server before version 8.2 patch 43. Attackers with administrative access can gain complete control of affected systems.
💻 Affected Systems
- MyQ Print Server
📦 What is this software?
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
Print Server by Myq Solution
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands, install malware, pivot to other systems, and exfiltrate sensitive data.
Likely Case
Attackers with administrative credentials can execute arbitrary code to gain persistent access, disrupt printing services, and potentially access sensitive print job data.
If Mitigated
With proper access controls and network segmentation, impact is limited to the print server system itself without lateral movement.
🎯 Exploit Status
Exploitation requires administrative credentials but is straightforward once access is obtained. Public technical details available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 8.2 patch 43
Vendor Advisory: https://docs.myq-solution.com/en/print-server/8.2/technical-changelog#id-%288.2%29ReleaseNotes-8.2%28Patch43%29
Restart Required: Yes
Instructions:
1. Download MyQ Print Server 8.2 patch 43 from official vendor portal. 2. Backup current configuration. 3. Install the patch following vendor instructions. 4. Restart the print server service. 5. Verify successful update.
🔧 Temporary Workarounds
Restrict Administrative Access
allLimit administrative interface access to specific IP addresses or networks only.
Configure firewall rules to restrict access to MyQ admin port (default 8080) to trusted IPs only
Change Default Credentials
allEnsure all administrative accounts use strong, unique passwords.
Use MyQ admin interface to change default admin passwords to complex alternatives
🧯 If You Can't Patch
- Isolate the MyQ Print Server on a dedicated VLAN with strict network segmentation
- Implement multi-factor authentication for administrative access and monitor for suspicious admin activity
🔍 How to Verify
Check if Vulnerable:
Check MyQ Print Server version in administrative interface under System Information. If version is below 8.2 patch 43, system is vulnerable.Check Version:
Access MyQ admin interface at http://[server-ip]:8080 and navigate to System InformationVerify Fix Applied:
Verify version shows 8.2 patch 43 or higher in System Information. Test administrative PHP functionality is properly restricted.📡 Detection & Monitoring
Log Indicators:
- Unusual PHP script execution in web server logs
- Multiple failed admin login attempts followed by successful login
- Suspicious administrative interface activity patterns
Network Indicators:
- Unusual outbound connections from print server
- HTTP POST requests to administrative PHP endpoints with command execution patterns
SIEM Query:
source="myq-print-server" AND (event_type="admin_login" OR event_type="php_execution") AND status="success"🔗 References
- https://docs.myq-solution.com/en/print-server/8.2/
- https://docs.myq-solution.com/en/print-server/8.2/technical-changelog#id-%288.2%29ReleaseNotes-8.2%28Patch43%29
- https://www.access42.nl/nieuws/unmasking-web-vulnerabilities-a-tale-of-default-admin-credentials-and-php-command-execution-cve-2024-22076/
- https://docs.myq-solution.com/en/print-server/8.2/
- https://docs.myq-solution.com/en/print-server/8.2/technical-changelog#id-%288.2%29ReleaseNotes-8.2%28Patch43%29
- https://www.access42.nl/nieuws/unmasking-web-vulnerabilities-a-tale-of-default-admin-credentials-and-php-command-execution-cve-2024-22076/
