CVE-2024-27178
📋 TL;DR
This CVE-2024-27178 vulnerability in ToshibaTec products allows attackers to achieve remote code execution by exploiting a path traversal weakness to overwrite files. Attackers can falsify filename variables to write arbitrary files, potentially leading to system compromise. The vulnerability requires combination with other flaws for full exploitation, affecting specific ToshibaTec multifunction printers and related products.
💻 Affected Systems
- ToshibaTec e-STUDIO multifunction printers
- ToshibaTec business 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
Full system compromise with persistent remote access, data exfiltration, and lateral movement within the network.
Likely Case
File system manipulation leading to service disruption, configuration changes, or limited code execution depending on combined vulnerabilities.
If Mitigated
Isolated file overwrites with no privilege escalation or code execution due to proper access controls and network segmentation.
🎯 Exploit Status
Vendor states exploitation requires combination with other vulnerabilities. No public exploit code identified in references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check ToshibaTec firmware updates for specific models
Vendor Advisory: https://www.toshibatec.com/information/20240531_01.html
Restart Required: Yes
Instructions:
1. Identify affected ToshibaTec models. 2. Contact ToshibaTec support or check vendor portal. 3. Apply firmware updates provided by ToshibaTec. 4. Restart devices after patching.
🔧 Temporary Workarounds
Network segmentation
allIsolate affected printers from critical networks and internet access
Access control restrictions
allLimit network access to printers to authorized users only
🧯 If You Can't Patch
- Implement strict network segmentation to isolate affected devices
- Monitor for unusual file system activity and authentication attempts
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against ToshibaTec's affected versions list in their advisoryCheck Version:
Check printer web interface or management console for firmware versionVerify Fix Applied:
Verify firmware version has been updated to patched version from ToshibaTec📡 Detection & Monitoring
Log Indicators:
- Unusual file write operations
- Multiple failed authentication attempts
- Unexpected configuration changes
Network Indicators:
- Unusual traffic to printer management interfaces
- Multiple file upload attempts
SIEM Query:
source="printer_logs" AND (event="file_write" OR event="config_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
