CVE-2019-18630
📋 TL;DR
This vulnerability affects Xerox multifunction printers where portions of the drive containing executable code were not encrypted, potentially allowing attackers to access cryptographic information. It impacts Xerox AltaLink B8045/B8055/B8065/B8075/B8090 and C8030/C8035/C8045/C8055/C8070 models with software releases before 101.00x.099.28200.
💻 Affected Systems
- Xerox AltaLink B8045
- Xerox AltaLink B8055
- Xerox AltaLink B8065
- Xerox AltaLink B8075
- Xerox AltaLink B8090
- Xerox AltaLink C8030
- Xerox AltaLink C8035
- Xerox AltaLink C8045
- Xerox AltaLink C8055
- Xerox AltaLink C8070
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could extract cryptographic keys or sensitive data from unencrypted drive portions, potentially compromising printer security and enabling further attacks.
Likely Case
Information disclosure of cryptographic materials that could be used in conjunction with other vulnerabilities for privilege escalation or data access.
If Mitigated
Limited impact if proper network segmentation and access controls prevent physical or network access to printer storage.
🎯 Exploit Status
Exploitation likely requires some level of access to the printer's storage system, either physically or through network interfaces.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 101.00x.099.28200 or later
Vendor Advisory: https://securitydocs.business.xerox.com/wp-content/uploads/2021/03/cert_Security_Mini_Bulletin_XRX20I_for_ALB80xx-C80xx_v1.2.pdf
Restart Required: Yes
Instructions:
1. Download firmware update from Xerox support portal. 2. Upload firmware to printer via web interface or USB. 3. Apply update through printer's firmware update utility. 4. Reboot printer after installation completes.
🔧 Temporary Workarounds
Network Segmentation
allIsolate printers on separate VLANs with strict firewall rules limiting access to management interfaces.
Access Control
allImplement strong authentication and limit administrative access to printer management interfaces.
🧯 If You Can't Patch
- Physically secure printers to prevent unauthorized physical access to storage components.
- Disable unnecessary network services and interfaces on printers to reduce attack surface.
🔍 How to Verify
Check if Vulnerable:
Check printer firmware version via web interface: Settings > Device > About > Software Version.Check Version:
Not applicable - check via printer web interface or display panel.Verify Fix Applied:
Verify firmware version is 101.00x.099.28200 or later after applying update.📡 Detection & Monitoring
Log Indicators:
- Unusual access to printer storage partitions
- Firmware modification attempts
- Unauthorized configuration changes
Network Indicators:
- Unusual network traffic to printer management ports
- Multiple failed authentication attempts to printer interface
SIEM Query:
source="printer_logs" AND (event="storage_access" OR event="firmware_modify")