CVE-2024-47944
📋 TL;DR
This vulnerability allows unauthenticated attackers to execute arbitrary code on affected Rittal IoT devices by placing malicious .patch firmware files on a USB stick. The firmware upgrade function executes these files without requiring any authentication in the admin interface. This affects Rittal IoT devices with vulnerable firmware versions.
💻 Affected Systems
- Rittal IoT devices (specific models not fully detailed in 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
Complete device compromise allowing persistent backdoor installation, data exfiltration, or use as a pivot point into internal networks.
Likely Case
Local attacker with physical USB access gains full control of the device, potentially disrupting industrial operations or stealing sensitive data.
If Mitigated
With proper physical security controls and USB port restrictions, risk is limited to authorized personnel only.
🎯 Exploit Status
Exploitation requires physical USB access to device but is straightforward once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified
Vendor Advisory: https://www.rittal.com/de-de/products/deep/3124300
Instructions:
Check vendor advisory for firmware updates. If patch available, download from official Rittal sources and apply via secure method.
🔧 Temporary Workarounds
Disable USB firmware upgrades
allDisable the USB-based firmware upgrade functionality in device settings if not required for operations.
Physical USB port security
allPhysically secure or disable USB ports using port locks or epoxy to prevent unauthorized USB insertion.
🧯 If You Can't Patch
- Implement strict physical access controls to prevent unauthorized personnel from accessing devices
- Monitor for suspicious USB activity and implement USB device whitelisting if supported
🔍 How to Verify
Check if Vulnerable:
Check if device accepts .patch files from USB without authentication. Test with benign patch file on USB stick.Check Version:
Check device web interface or console for firmware version and compare against vendor patched versions.Verify Fix Applied:
Verify that firmware upgrade now requires authentication or that USB upgrade functionality is disabled.📡 Detection & Monitoring
Log Indicators:
- Unexpected firmware upgrade attempts
- USB device insertion logs
- Authentication bypass attempts
Network Indicators:
- Unusual outbound connections from IoT device post-upgrade
- Anomalous traffic patterns
SIEM Query:
source="rittal-iot" AND (event="firmware_upgrade" OR event="usb_insert")