CVE-2025-6081
📋 TL;DR
This vulnerability allows attackers to reconfigure Konica Minolta bizhub 227 printers to use attacker-controlled LDAP servers, enabling credential capture through pass-back attacks. Organizations using affected printers with LDAP authentication configured are at risk. The vulnerability specifically targets multifunction printers in enterprise environments.
💻 Affected Systems
- Konica Minolta bizhub 227 Multifunction Printer
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers capture LDAP service account credentials, potentially gaining domain-level access and compromising the entire Active Directory environment.
Likely Case
Attackers capture printer LDAP credentials, enabling lateral movement within the network and potential access to sensitive documents and user information.
If Mitigated
With network segmentation and proper monitoring, impact is limited to printer functionality disruption and potential credential exposure.
🎯 Exploit Status
Exploitation requires network access to the printer's management interface. Rapid7 has published detailed exploitation methodology.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: https://www.konicaminolta.com/global-en/security/advisory/pdf/km-2025-0003.pdf
Restart Required: No
Instructions:
No official patch available. Follow vendor advisory for mitigation guidance.
🔧 Temporary Workarounds
Disable LDAP Authentication
allRemove LDAP configuration from affected printers to eliminate the attack vector
Access printer web interface > Security > Authentication > Disable LDAP
Network Segmentation
allIsolate printers in separate VLANs with strict firewall rules
🧯 If You Can't Patch
- Implement strict network access controls to prevent unauthorized access to printer management interfaces
- Monitor for unusual LDAP configuration changes and authentication attempts to external servers
🔍 How to Verify
Check if Vulnerable:
Check printer firmware version via web interface: System Settings > Device Information > Firmware Version. If version is GCQ-Y3 or earlier and LDAP is configured, device is vulnerable.Check Version:
Access printer web interface at http://[printer-ip]/wcd/system.xml or check System Settings > Device InformationVerify Fix Applied:
Verify LDAP is disabled or printer is isolated from untrusted networks. No firmware fix available to verify.📡 Detection & Monitoring
Log Indicators:
- LDAP configuration changes in printer logs
- Authentication failures to new/unexpected LDAP servers
- Printer management interface access from unusual IPs
Network Indicators:
- Outbound LDAP traffic from printers to non-corporate IPs
- DNS queries for suspicious LDAP servers
- Unexpected connections to printer TCP/80 or TCP/443
SIEM Query:
source="printer_logs" AND (event="ldap_config_change" OR event="auth_failure") OR dest_ip="printer_ip" AND (src_ip NOT IN corporate_subnets)