CVE-2023-28814
📋 TL;DR
Hikvision iSecure Center software has an improper file upload vulnerability that allows attackers to upload malicious files to the server due to insufficient file validation. This affects all deployments of iSecure Center in China's domestic market. The vulnerability has a critical CVSS score of 9.8 due to its potential for remote code execution.
💻 Affected Systems
- Hikvision iSecure Center
⚠️ 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 system compromise through remote code execution, allowing attackers to install backdoors, steal sensitive data, or pivot to other systems.
Likely Case
Web shell deployment leading to persistent access, data exfiltration, and lateral movement within the network.
If Mitigated
Limited impact if proper network segmentation and file upload restrictions are in place, though the vulnerability still exists.
🎯 Exploit Status
File upload vulnerabilities are commonly exploited and weaponized. The high CVSS score suggests exploitation is straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific patched versions
Vendor Advisory: https://www.hikvision.com/cn/support/CybersecurityCenter/SecurityNotices/2023-03/
Restart Required: Yes
Instructions:
1. Access the vendor advisory URL. 2. Identify affected version. 3. Download and apply the security patch from Hikvision. 4. Restart the iSecure Center service. 5. Verify the patch is applied successfully.
🔧 Temporary Workarounds
Restrict File Upload Types
allConfigure web application firewall or server to block uploads of executable file types
Network Segmentation
allIsolate iSecure Center servers from internet and restrict internal access
🧯 If You Can't Patch
- Immediately isolate affected systems from internet and restrict network access
- Implement strict file upload validation and monitoring for suspicious upload activities
🔍 How to Verify
Check if Vulnerable:
Check iSecure Center version against vendor advisory. Test file upload functionality with controlled malicious files.Check Version:
Check within iSecure Center admin interface or consult system documentation for version checkingVerify Fix Applied:
Verify patch version is installed and test that file upload validation now properly rejects malicious files.📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads to iSecure Center
- Uploads of executable file types
- Multiple failed upload attempts
Network Indicators:
- HTTP POST requests to file upload endpoints with suspicious payloads
- Outbound connections from iSecure Center server to unknown IPs
SIEM Query:
source="iSecureCenter" AND (event="file_upload" OR url="*upload*") AND (file_extension="php" OR file_extension="jsp" OR file_extension="asp" OR file_extension="exe")