CVE-2020-7819
📋 TL;DR
CVE-2020-7819 is a critical SQL injection vulnerability in nTracker USB Enterprise software that allows remote unauthenticated attackers to execute arbitrary SQL queries. This exposes sensitive authentication credentials and session information. All organizations using vulnerable versions of this USB management solution are affected.
💻 Affected Systems
- nTracker USB Enterprise
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the nTracker system with credential theft, potential lateral movement to connected systems, and data exfiltration.
Likely Case
Attackers steal administrator credentials and session data, gaining unauthorized access to USB management functions and potentially compromising connected USB devices.
If Mitigated
Limited impact if proper network segmentation and access controls prevent external access to the vulnerable interface.
🎯 Exploit Status
SQL injection vulnerabilities are commonly exploited with readily available tools. The unauthenticated nature makes exploitation straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in references, but vendor has released updates
Vendor Advisory: https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36223
Restart Required: Yes
Instructions:
1. Contact nTracker vendor for latest patched version. 2. Backup configuration and data. 3. Apply vendor-provided patch/update. 4. Restart nTracker services. 5. Verify functionality.
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict network access to nTracker management interface to trusted IP addresses only
Use firewall rules to limit access: iptables -A INPUT -p tcp --dport [nTracker_port] -s [trusted_IP] -j ACCEPT
iptables -A INPUT -p tcp --dport [nTracker_port] -j DROP
Web Application Firewall
allDeploy WAF with SQL injection protection rules in front of nTracker
🧯 If You Can't Patch
- Isolate nTracker system in separate network segment with strict access controls
- Implement network monitoring and IDS/IPS with SQL injection detection rules
🔍 How to Verify
Check if Vulnerable:
Check if nTracker USB Enterprise is installed and accessible via network. Test with SQL injection payloads against web interface endpoints.Check Version:
Check nTracker administration interface or installation directory for version informationVerify Fix Applied:
Verify patch installation via version check. Test that SQL injection payloads no longer return database information.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL query patterns in application logs
- Multiple failed authentication attempts followed by successful access
- Database error messages containing SQL syntax
Network Indicators:
- SQL injection patterns in HTTP requests to nTracker ports
- Unusual outbound connections from nTracker server
SIEM Query:
source="nTracker" AND (http_uri="*SELECT*" OR http_uri="*UNION*" OR http_uri="*OR 1=1*")