CVE-2024-45837
📋 TL;DR
This vulnerability involves hard-coded cryptographic keys in AIPHONE intercom systems and software, allowing network-adjacent attackers to access SFTP services without authentication. Attackers can view, download, or modify files they shouldn't have access to. Affected systems include AIPHONE IX SYSTEM, IXG SYSTEM, and System Support Software.
💻 Affected Systems
- AIPHONE IX SYSTEM
- AIPHONE IXG SYSTEM
- System Support Software
⚠️ 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 compromise of system files including configuration, logs, and potentially sensitive data; unauthorized modifications could disrupt operations or enable further attacks.
Likely Case
Unauthorized file access and exfiltration of configuration data, logs, or other files accessible via SFTP.
If Mitigated
Limited impact if SFTP service is disabled or network access is restricted, though the vulnerability remains present.
🎯 Exploit Status
Exploitation requires network access to the SFTP service and knowledge of the hard-coded credentials. No authentication is needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisories for specific version updates
Vendor Advisory: https://www.aiphone.net/important/20241016_1/
Restart Required: Yes
Instructions:
1. Review vendor advisories at provided URLs. 2. Download updated firmware/software from AIPHONE support site. 3. Apply updates following vendor instructions. 4. Restart affected systems.
🔧 Temporary Workarounds
Disable SFTP Service
allTurn off SFTP service if not required for operations
Network Segmentation
allRestrict network access to SFTP service using firewalls or VLANs
🧯 If You Can't Patch
- Implement strict network access controls to limit who can reach the SFTP service
- Monitor SFTP access logs for unauthorized connection attempts
🔍 How to Verify
Check if Vulnerable:
Check if SFTP service is accessible from network and test with known hard-coded credentials (not disclosed here for security)Check Version:
Check system firmware/software version through device management interfaceVerify Fix Applied:
Verify updated version is installed and test that SFTP no longer accepts hard-coded credentials📡 Detection & Monitoring
Log Indicators:
- Unusual SFTP login attempts
- SFTP access from unexpected IP addresses
- File access patterns outside normal operations
Network Indicators:
- SFTP connections from unauthorized network segments
- Unusual file transfer volumes via SFTP
SIEM Query:
source="sftp_logs" AND (event="authentication" AND result="success") | stats count by src_ip