CVE-2020-6769
📋 TL;DR
This critical vulnerability in Bosch Video Streaming Gateway allows unauthenticated remote attackers to access and modify configuration data without authentication. This can compromise the confidentiality and availability of live/recorded video feeds and storage systems. Affected systems include Bosch VSG versions 6.42.10 through 6.45.08 and various DIVAR IP products with vulnerable configurations.
💻 Affected Systems
- Bosch Video Streaming Gateway
- Bosch DIVAR IP 3000
- Bosch DIVAR IP 7000
- Bosch DIVAR IP all-in-one 5000
- Bosch DIVAR IP 2000
- Bosch DIVAR IP 5000
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of all video surveillance systems, unauthorized access to live/recorded footage, disruption of recording capabilities, and potential pivot to internal networks.
Likely Case
Unauthorized viewing of surveillance footage, modification of recording settings, and potential denial of service to video monitoring systems.
If Mitigated
Limited impact if proper network segmentation and access controls prevent external access to vulnerable services.
🎯 Exploit Status
Vulnerability requires no authentication and has CVSS 10.0 score, making exploitation straightforward for attackers with network access
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: VSG 6.45.09, 6.44.023, 6.43.0024, and later versions
Vendor Advisory: https://psirt.bosch.com/security-advisories/BOSCH-SA-260625-BT.html
Restart Required: Yes
Instructions:
1. Download updated firmware from Bosch support portal. 2. Backup current configuration. 3. Apply firmware update following Bosch documentation. 4. Verify update completed successfully. 5. Restart affected devices.
🔧 Temporary Workarounds
Block Port 8023
linuxBlock external access to vulnerable port 8023 using firewall rules
iptables -A INPUT -p tcp --dport 8023 -j DROP
Network Segmentation
allIsolate VSG and DIVAR IP systems from untrusted networks
🧯 If You Can't Patch
- Implement strict network segmentation to isolate affected systems from internet and untrusted networks
- Deploy network monitoring and intrusion detection for traffic on port 8023
🔍 How to Verify
Check if Vulnerable:
Check VSG version in web interface or via SSH: cat /etc/version or similar version fileCheck Version:
ssh admin@device 'cat /etc/version' or check web admin interfaceVerify Fix Applied:
Verify version is updated to patched versions: VSG 6.45.09, 6.44.023, 6.43.0024 or later📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to port 8023
- Configuration changes without authentication logs
- Unusual access patterns to VSG services
Network Indicators:
- External connections to port 8023
- Unusual traffic patterns to/from VSG systems
- Configuration data being transmitted unencrypted
SIEM Query:
source_port=8023 AND (action="modify" OR action="retrieve") AND auth_status="failed"