CVE-2020-28329
📋 TL;DR
This vulnerability allows attackers to discover hardcoded administrative credentials in Barco wePresent WiPG-1600W firmware. Attackers can use these credentials to gain administrative access to the device's API and potentially take full control of affected devices. Organizations using the specified firmware versions are affected.
💻 Affected Systems
- Barco wePresent WiPG-1600W
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attackers to intercept presentations, modify device configuration, install malware, or use the device as a pivot point into internal networks.
Likely Case
Unauthorized administrative access to the device allowing configuration changes, presentation interception, and potential denial of service.
If Mitigated
Limited impact if devices are isolated from untrusted networks and API access is restricted through network controls.
🎯 Exploit Status
Exploitation requires only network access to the device and knowledge of the hardcoded credentials, which are publicly documented.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.5.1.9 or later
Vendor Advisory: https://www.barco.com/en/support/software/R33050069?majorVersion=2&minorVersion=5&patchVersion=1&buildVersion=9
Restart Required: Yes
Instructions:
1. Download firmware version 2.5.1.9 or later from Barco support portal. 2. Log into device web interface. 3. Navigate to System > Firmware Update. 4. Upload and install the new firmware. 5. Reboot the device.
🔧 Temporary Workarounds
Network Segmentation
allIsolate wePresent devices on a separate VLAN with strict firewall rules limiting access to authorized management systems only.
API Access Restriction
allConfigure firewall rules to block all external access to the device's API ports (typically 80/443) except from authorized management IPs.
🧯 If You Can't Patch
- Immediately isolate affected devices from untrusted networks and internet exposure.
- Implement strict network access controls allowing only authorized management systems to communicate with the devices.
🔍 How to Verify
Check if Vulnerable:
Check firmware version in device web interface under System > Information. If version matches affected list, device is vulnerable.Check Version:
curl -k https://[device-ip]/api/v1/system/info | grep versionVerify Fix Applied:
After patching, verify firmware version shows 2.5.1.9 or later. Test API authentication with previously known hardcoded credentials should fail.📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts followed by successful API access
- Unusual administrative API calls from unexpected IP addresses
Network Indicators:
- API authentication requests using hardcoded credentials
- Administrative API calls from unauthorized sources
SIEM Query:
source="wePresent" AND (event_type="api_auth" AND result="success") AND NOT src_ip IN [authorized_management_ips]