CVE-2024-27911
📋 TL;DR
This vulnerability in certain Lenovo printers allows unauthenticated attackers to retrieve the administrator password. Affected organizations using vulnerable Lenovo printer models are at risk of unauthorized administrative access.
💻 Affected Systems
- Lenovo printers (specific models not detailed in provided references)
⚠️ 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
Attacker gains full administrative control over printer, enabling configuration changes, firmware manipulation, data exfiltration, or using printer as network pivot point.
Likely Case
Attacker obtains administrator credentials, changes printer settings, intercepts print jobs, or disables security features.
If Mitigated
Limited to printer compromise only, with network segmentation preventing lateral movement.
🎯 Exploit Status
CWE-862 indicates missing authorization mechanism, suggesting straightforward exploitation once method is known.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in provided references
Vendor Advisory: https://iknow.lenovo.com.cn/detail/420425
Restart Required: Yes
Instructions:
1. Visit Lenovo advisory URL. 2. Identify affected printer models. 3. Download and apply firmware update from Lenovo support site. 4. Reboot printer after update.
🔧 Temporary Workarounds
Network segmentation
allIsolate printers on separate VLAN with restricted access
Access control
allImplement firewall rules to restrict printer management interface access
🧯 If You Can't Patch
- Disable remote management features if not required
- Change default administrator password and implement strong password policy
🔍 How to Verify
Check if Vulnerable:
Check printer firmware version against Lenovo advisory. Attempt to access admin interface without authentication.Check Version:
Check printer web interface or physical display for firmware versionVerify Fix Applied:
Verify firmware version matches patched version from advisory. Test that admin password cannot be retrieved without authentication.📡 Detection & Monitoring
Log Indicators:
- Unauthenticated access attempts to admin endpoints
- Multiple failed login attempts followed by successful admin access
Network Indicators:
- Unusual HTTP requests to printer management interface
- Traffic to printer on admin ports from unauthorized sources
SIEM Query:
source_ip=printer_ip AND (uri_path CONTAINS "/admin" OR uri_path CONTAINS "/password") AND http_status=200