CVE-2021-32003
📋 TL;DR
This vulnerability allows a local attacker to capture credentials transmitted in plaintext by the SiteManager provisioning service after initial device setup. It affects all Secomea SiteManager hardware devices running versions prior to 9.5.
💻 Affected Systems
- Secomea SiteManager
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Local attacker obtains administrative credentials, leading to complete device compromise, data exfiltration, and potential lateral movement within the network.
Likely Case
Local attacker captures credentials used for device management, enabling unauthorized access to the SiteManager device and potentially connected systems.
If Mitigated
With proper network segmentation and access controls, impact is limited to the local device only, preventing credential reuse elsewhere.
🎯 Exploit Status
Exploitation requires network access to the provisioning service and ability to capture network traffic.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 9.5
Vendor Advisory: https://www.secomea.com/support/cybersecurity-advisory
Restart Required: Yes
Instructions:
1. Download SiteManager firmware version 9.5 or later from Secomea support portal. 2. Upload firmware to SiteManager device via web interface. 3. Apply firmware update. 4. Reboot device to complete installation.
🔧 Temporary Workarounds
Disable provisioning service after setup
allStop using the provisioning service once initial device configuration is complete
Network segmentation
allIsolate SiteManager devices on separate VLANs with strict access controls
🧯 If You Can't Patch
- Segment SiteManager devices on isolated network segments with strict firewall rules
- Implement network monitoring to detect credential capture attempts on provisioning service ports
🔍 How to Verify
Check if Vulnerable:
Check SiteManager firmware version via web interface or CLI. If version is below 9.5, device is vulnerable.Check Version:
Check via web interface at System > About, or via SSH: show versionVerify Fix Applied:
Confirm firmware version is 9.5 or higher in device administration interface.📡 Detection & Monitoring
Log Indicators:
- Unusual network traffic to provisioning service ports
- Multiple failed authentication attempts after credential capture
Network Indicators:
- Unencrypted credential transmission on network
- Unexpected connections to provisioning service from unauthorized hosts
SIEM Query:
source_ip IN (site_manager_ips) AND dest_port IN (provisioning_ports) AND protocol = 'tcp' AND payload_contains('password')