CVE-2024-27143
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary commands as root on Toshiba printers via SNMP using the private community string. Attackers can gain complete control over affected printers, potentially using them as footholds in network attacks. Organizations using vulnerable Toshiba printer models are affected.
💻 Affected Systems
- Toshiba e-STUDIO and other printer models (see vendor advisory for complete list)
⚠️ 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 root compromise of printer leading to data exfiltration, lateral movement into corporate networks, and persistent backdoor installation.
Likely Case
Printer compromise leading to denial of service, unauthorized configuration changes, and credential harvesting from print jobs.
If Mitigated
Limited impact if SNMP is disabled or properly secured with ACLs and strong community strings.
🎯 Exploit Status
Exploit requires SNMP access but no authentication. Public disclosure includes technical details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Firmware updates specified in vendor advisory
Vendor Advisory: https://www.toshibatec.com/information/20240531_01.html
Restart Required: Yes
Instructions:
1. Check vendor advisory for affected models. 2. Download firmware updates from Toshiba support. 3. Apply firmware update following manufacturer instructions. 4. Verify update completion and restart printer.
🔧 Temporary Workarounds
Disable SNMP
allDisable SNMP service on affected printers if not required for management.
Access printer web interface > Network Settings > SNMP > Disable
Restrict SNMP Access
allConfigure SNMP ACLs to allow only trusted management stations.
Access printer web interface > Network Settings > SNMP > Configure ACLs
🧯 If You Can't Patch
- Network segmentation: Isolate printers in separate VLAN with strict firewall rules.
- Monitor SNMP traffic: Alert on unusual SNMP requests to private community strings.
🔍 How to Verify
Check if Vulnerable:
Check printer firmware version against vendor advisory. Test SNMP access with private community string.Check Version:
Access printer web interface > System Information > Firmware VersionVerify Fix Applied:
Verify firmware version is updated to patched version. Test that SNMP command execution no longer works.📡 Detection & Monitoring
Log Indicators:
- SNMP requests to private community strings
- Unexpected configuration changes
- Unusual command execution logs
Network Indicators:
- SNMP traffic to printer ports (161/162) from unauthorized sources
- SNMP set requests with command payloads
SIEM Query:
source_ip:* destination_port:161 protocol:UDP AND (community_string:"private" OR snmp_command:"set")🔗 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
