CVE-2024-13870
📋 TL;DR
An unauthenticated attacker within WiFi range can downgrade Bitdefender Box 1 firmware to older vulnerable versions when the device is in Recovery Mode. This affects Bitdefender Box 1 devices running firmware version 1.3.52.928 or earlier. The vulnerability requires physical proximity and specific device state.
💻 Affected Systems
- Bitdefender Box 1
📦 What is this software?
Box Firmware by Bitdefender
⚠️ Risk & Real-World Impact
Worst Case
Attacker downgrades firmware to version with known critical vulnerabilities, then exploits those to gain full device control, potentially compromising network security and connected devices.
Likely Case
Attacker downgrades firmware to exploit known vulnerabilities in older versions, gaining partial device control or enabling further attacks on the network.
If Mitigated
Device remains on current firmware with no downgrade possible, maintaining existing security controls.
🎯 Exploit Status
Requires physical proximity to WiFi signal and device in Recovery Mode. No authentication needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Firmware version above 1.3.52.928
Vendor Advisory: https://bitdefender.com/support/security-advisories/unauthenticated-firmware-downgrade-in-bitdefender-box-v1
Restart Required: Yes
Instructions:
1. Log into Bitdefender Box admin interface. 2. Check for firmware updates. 3. Apply available update. 4. Reboot device after update completes.
🔧 Temporary Workarounds
Disable Recovery Mode Access
allPrevent unauthorized access to Recovery Mode by ensuring device is not booted into this mode unnecessarily.
Physical Security Controls
allRestrict physical access to device location to prevent attackers from being within WiFi range.
🧯 If You Can't Patch
- Ensure device is never left in Recovery Mode unattended
- Monitor for unauthorized firmware version changes and alert on downgrades
🔍 How to Verify
Check if Vulnerable:
Check firmware version in Bitdefender Box admin interface. If version is 1.3.52.928 or lower, device is vulnerable.Check Version:
Login to Bitdefender Box web interface and check Firmware version in Settings/System InformationVerify Fix Applied:
Verify firmware version is above 1.3.52.928 in admin interface after update.📡 Detection & Monitoring
Log Indicators:
- Firmware downgrade events
- Recovery Mode activation logs
- Unauthorized firmware update attempts
Network Indicators:
- Unexpected firmware download traffic
- Recovery Mode network beaconing
SIEM Query:
Search for firmware version changes or Recovery Mode activation events in device logs