CVE-2024-37016
📋 TL;DR
This vulnerability allows attackers to bypass authentication on Mengshen Wireless Door Alarm M70 devices by capturing and replaying network traffic. Attackers can gain unauthorized access to the alarm system without valid credentials. This affects all users of the M70 model manufactured before May 24, 2024.
💻 Affected Systems
- Mengshen Wireless Door Alarm M70
⚠️ 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
Attackers gain full control of the alarm system, disable security features, manipulate door states, and potentially access connected systems.
Likely Case
Unauthorized users bypass door security, gain physical access to secured areas, or disable alarm notifications.
If Mitigated
With proper network segmentation and monitoring, impact is limited to isolated alarm systems with no lateral movement.
🎯 Exploit Status
Exploitation requires network access to capture authentication traffic, then replaying it. No authentication needed to initiate attack.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: No vendor advisory found
Restart Required: No
Instructions:
No official patch available. Contact Mengshen for firmware updates or replacement options.
🔧 Temporary Workarounds
Network Segmentation
allIsolate alarm system on separate VLAN with strict access controls
Disable Remote Access
allRemove internet exposure and restrict to local network only
🧯 If You Can't Patch
- Physically isolate the alarm system network from other systems
- Implement network monitoring for replay attack patterns and authentication anomalies
🔍 How to Verify
Check if Vulnerable:
Check device manufacturing date or firmware version. If before 2024-05-24, assume vulnerable.Check Version:
Check device label for manufacturing date or access device interface for firmware versionVerify Fix Applied:
Test authentication bypass by attempting replay attack with captured traffic. If authentication still required, fix may be applied.📡 Detection & Monitoring
Log Indicators:
- Repeated authentication attempts from same source with identical timing patterns
- Successful authentication from previously unknown MAC addresses
Network Indicators:
- Identical authentication packets repeated within short timeframes
- Authentication traffic from unexpected network segments
SIEM Query:
source_ip=alarm_device AND (packet_size=identical_value WITHIN 5s) OR auth_success FROM new_mac