CVE-2024-29949
📋 TL;DR
This CVE describes a command injection vulnerability in certain Hikvision NVR devices that allows authenticated administrators to execute arbitrary commands on the system. Attackers with administrative access can exploit this to gain full control of affected devices. Organizations using vulnerable Hikvision NVRs are at risk.
💻 Affected Systems
- Hikvision NVR devices
⚠️ 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 the NVR system, allowing attackers to install persistent backdoors, exfiltrate surveillance footage, pivot to internal networks, or disable security monitoring entirely.
Likely Case
Attackers with stolen or compromised admin credentials could execute commands to disrupt operations, modify configurations, or establish footholds for further attacks.
If Mitigated
With proper network segmentation and strong authentication controls, impact would be limited to the isolated NVR system without lateral movement opportunities.
🎯 Exploit Status
Exploitation requires administrative credentials. Once authenticated, command injection is straightforward for attackers familiar with the system.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Hikvision advisory for specific fixed firmware versions
Vendor Advisory: https://www.hikvision.com/en/support/cybersecurity/security-advisory/security-vulnerabilities-in-hikvision-nvr-devices/
Restart Required: Yes
Instructions:
1. Identify affected NVR models from Hikvision advisory. 2. Download latest firmware from Hikvision portal. 3. Backup current configuration. 4. Apply firmware update via web interface. 5. Verify update completion and restore configuration if needed.
🔧 Temporary Workarounds
Network Segmentation
allIsolate NVR devices from general network and internet access
Access Control Hardening
allImplement strong authentication controls and limit administrative access
🧯 If You Can't Patch
- Segment NVR devices on isolated VLAN with strict firewall rules
- Implement multi-factor authentication for administrative access and regularly rotate credentials
🔍 How to Verify
Check if Vulnerable:
Check device model and firmware version against Hikvision's security advisory list of affected devicesCheck Version:
Check via web interface: System > Maintenance > Version Information or via SSH if enabledVerify Fix Applied:
Verify firmware version has been updated to patched version specified in Hikvision advisory📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns in system logs
- Multiple failed authentication attempts followed by successful admin login
- Unexpected process creation or system modifications
Network Indicators:
- Unusual outbound connections from NVR devices
- Traffic patterns inconsistent with normal NVR operations
SIEM Query:
source="hikvision-nvr" AND (event_type="command_execution" OR user="admin" AND action="system_modification")