CVE-2024-12553
📋 TL;DR
This vulnerability in GeoVision GV-ASManager allows remote attackers to access sensitive information without proper authorization. Attackers can use default guest credentials to exploit the GV-ASWeb service and retrieve stored credentials, potentially leading to further system compromise. Organizations using GeoVision GV-ASManager are affected.
💻 Affected Systems
- GeoVision GV-ASManager
📦 What is this software?
Gv Asmanager by Geovision
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise through credential theft leading to unauthorized access to surveillance systems, data exfiltration, and potential physical security breaches.
Likely Case
Attackers gain access to stored credentials, compromise additional systems in the network, and potentially manipulate surveillance footage or system configurations.
If Mitigated
Limited to information disclosure of some system credentials without ability to escalate privileges or access critical systems.
🎯 Exploit Status
Authentication required but default guest credentials are available. ZDI has confirmed the vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific version
Vendor Advisory: https://www.zerodayinitiative.com/advisories/ZDI-24-1682/
Restart Required: Yes
Instructions:
1. Contact GeoVision for latest security patches
2. Apply patch to all GV-ASManager installations
3. Restart GV-ASWeb service
4. Verify authorization controls are functioning
🔧 Temporary Workarounds
Disable Guest Account
windowsRemove or disable default guest credentials
Use GV-ASManager admin interface to disable guest account
Network Segmentation
allIsolate GV-ASManager from internet and restrict internal access
Configure firewall rules to block external access to GV-ASWeb service ports
🧯 If You Can't Patch
- Implement strict network access controls to limit who can reach the GV-ASWeb service
- Change all default credentials and implement strong authentication requirements
🔍 How to Verify
Check if Vulnerable:
Attempt to access GV-ASWeb service with default guest credentials and check if sensitive information is accessible without proper authorization.Check Version:
Check GV-ASManager version in application interface or installation directoryVerify Fix Applied:
Test that guest credentials no longer work and that authorization checks are properly enforced for all sensitive functions.📡 Detection & Monitoring
Log Indicators:
- Multiple failed authentication attempts followed by successful guest login
- Access to sensitive endpoints without proper authorization logs
- Unusual credential access patterns
Network Indicators:
- External connections to GV-ASWeb service ports
- Traffic patterns indicating credential harvesting
SIEM Query:
source="GV-ASManager" AND (event="guest_login" OR event="unauthorized_access")