CVE-2024-47005
📋 TL;DR
This vulnerability allows non-administrative users to execute configuration APIs on Sharp and Toshiba Tec multifunction printers (MFPs) that should be restricted to administrators only. This exposes configuration management functions to unauthorized users. Organizations using affected Sharp and Toshiba Tec MFP models are impacted.
💻 Affected Systems
- Sharp MFPs
- Toshiba Tec MFPs
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Unauthorized users could reconfigure device settings, disable security features, extract sensitive information, or potentially gain administrative access to the device.
Likely Case
Unauthorized users could modify printer settings, access configuration data, or disrupt normal device operations.
If Mitigated
With proper network segmentation and access controls, the impact would be limited to internal users who already have some level of network access to the devices.
🎯 Exploit Status
Exploitation requires network access to the device and valid user credentials (non-admin). The vulnerability is in API authorization logic.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Firmware updates specified in vendor advisories
Vendor Advisory: https://global.sharp/products/copier/info/info_security_2024-10.html
Restart Required: Yes
Instructions:
1. Identify affected MFP models using vendor advisories. 2. Download firmware updates from Sharp or Toshiba Tec support portals. 3. Apply firmware updates following manufacturer instructions. 4. Verify the update was successful.
🔧 Temporary Workarounds
Network Segmentation
allIsolate MFPs on separate VLANs with strict access controls
Access Control Lists
allImplement firewall rules to restrict access to MFP management interfaces
🧯 If You Can't Patch
- Segment MFPs on isolated network segments with strict access controls
- Disable unnecessary management interfaces and APIs if possible
- Implement strong authentication and monitor for unauthorized configuration changes
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against vendor advisories. Test if non-admin users can access configuration APIs.Check Version:
Check firmware version through device web interface or management consoleVerify Fix Applied:
Verify firmware version has been updated to patched version. Test that non-admin users can no longer access configuration APIs.📡 Detection & Monitoring
Log Indicators:
- Unauthorized API calls to configuration endpoints
- Configuration changes from non-admin users
- Failed authentication attempts to admin APIs
Network Indicators:
- Unusual traffic to MFP management ports from non-admin IPs
- Configuration API calls from unauthorized users
SIEM Query:
source="mfp_logs" AND (event="configuration_change" OR api_call="*/config/*") AND user_role!="admin"