CVE-2024-47258
📋 TL;DR
2N Access Commander versions 2.1 and earlier fail to verify TLS certificates from 2N edge devices by default, allowing man-in-the-middle attackers to intercept and potentially manipulate communications between the access control software and connected devices. This affects all organizations using vulnerable versions of 2N Access Commander in their physical access control systems.
💻 Affected Systems
- 2N Access Commander
⚠️ 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 could intercept credentials, manipulate door access commands, disable security systems, or gain unauthorized physical access to facilities by impersonating legitimate edge devices.
Likely Case
Attackers on the same network could intercept communications to monitor access patterns, potentially enabling social engineering attacks or reconnaissance for physical intrusion.
If Mitigated
With proper certificate validation enabled, communications are secured via TLS, preventing interception and manipulation of access control commands.
🎯 Exploit Status
Requires network access to intercept communications between Access Commander and edge devices. No authentication bypass needed for MITM.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.3
Vendor Advisory: https://www.2n.com/en-GB/download/cve_2024_47258_acom_3_3_v1pdf
Restart Required: No
Instructions:
1. Download 2N Access Commander version 3.3 from official 2N sources. 2. Install the update following vendor documentation. 3. Enable Certificate Fingerprint Verification in settings. 4. Test connectivity with edge devices.
🔧 Temporary Workarounds
Enable TLS Certificate Validation (v2.2+)
allFor versions 2.2 to 3.2, manually enable TLS certificate validation in Access Commander settings to enforce certificate checking.
🧯 If You Can't Patch
- Segment network to isolate Access Commander from untrusted networks
- Implement network monitoring for unusual TLS handshake patterns or certificate errors
🔍 How to Verify
Check if Vulnerable:
Check Access Commander version in Help > About. If version is 2.1 or earlier, or if version is 2.2-3.2 and TLS certificate validation is disabled, system is vulnerable.Check Version:
Check via GUI: Help > About in Access Commander interfaceVerify Fix Applied:
Verify version is 3.3+ and Certificate Fingerprint Verification is enabled in settings. Test communication with edge devices while monitoring for successful TLS handshakes.📡 Detection & Monitoring
Log Indicators:
- TLS handshake failures
- Certificate validation errors
- Unexpected connection attempts to edge devices
Network Indicators:
- Unencrypted traffic between Access Commander and edge devices on port 443
- Suspicious MITM patterns in network traffic
SIEM Query:
source="access_commander" AND (event_type="tls_error" OR certificate_validation="disabled")