CVE-2024-27153
📋 TL;DR
CVE-2024-27153 is a local privilege escalation vulnerability in Toshiba printers that allows attackers to gain elevated privileges on affected devices. Attackers can remotely compromise vulnerable printers, potentially gaining control over device functions and network access. Organizations using affected Toshiba printer models are at risk.
💻 Affected Systems
- Toshiba e-STUDIO and e-BRIDGE series printers
⚠️ 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
Complete compromise of printer with administrative access, enabling attackers to intercept print jobs, access network resources, install persistent malware, or use the printer as a pivot point into the corporate network.
Likely Case
Unauthorized access to printer configuration, potential data exfiltration from print jobs, and disruption of printing services.
If Mitigated
Limited impact with proper network segmentation and access controls preventing lateral movement from compromised printers.
🎯 Exploit Status
Public disclosure includes technical details that could facilitate exploitation. Remote exploitation possible without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Firmware updates specified in Toshiba advisory
Vendor Advisory: https://www.toshibatec.com/information/20240531_01.html
Restart Required: Yes
Instructions:
1. Identify affected printer models from Toshiba advisory. 2. Download latest firmware from Toshiba support portal. 3. Apply firmware update following manufacturer instructions. 4. Verify update completion and restart printer.
🔧 Temporary Workarounds
Network Segmentation
allIsolate printers on separate VLAN with restricted access to prevent lateral movement
Access Control
allImplement strict firewall rules to limit printer management interface access to authorized IPs only
🧯 If You Can't Patch
- Segment printers on isolated network segments with no internet access
- Disable unnecessary printer services and management interfaces
🔍 How to Verify
Check if Vulnerable:
Check printer model and firmware version against Toshiba's affected products list in their advisoryCheck Version:
Check printer web interface or control panel for firmware version informationVerify Fix Applied:
Verify firmware version has been updated to patched version specified in Toshiba advisory📡 Detection & Monitoring
Log Indicators:
- Unusual authentication attempts to printer management interface
- Unexpected firmware modification logs
- Multiple failed privilege escalation attempts
Network Indicators:
- Unusual network traffic to printer management ports (typically 80, 443, 9100)
- Anomalous outbound connections from printers
SIEM Query:
source="printer_logs" AND (event_type="authentication_failure" OR event_type="firmware_change")🔗 References
- http://seclists.org/fulldisclosure/2024/Jul/1
- https://jvn.jp/en/vu/JVNVU97136265/index.html
- https://www.toshibatec.com/information/20240531_01.html
- https://www.toshibatec.com/information/pdf/information20240531_01.pdf
- http://seclists.org/fulldisclosure/2024/Jul/1
- https://jvn.jp/en/vu/JVNVU97136265/index.html
- https://www.toshibatec.com/information/20240531_01.html
- https://www.toshibatec.com/information/pdf/information20240531_01.pdf
