CVE-2020-19301
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code on vaeThink v1.0.1 systems by injecting malicious payloads into the condition parameter of the vae_admin_rule database table. Attackers can achieve full system compromise through this SQL injection vulnerability. All systems running the affected vaeThink version are vulnerable.
💻 Affected Systems
- vaeThink
📦 What is this software?
Vaethink by Vaethink
⚠️ Risk & Real-World Impact
Worst Case
Complete system takeover with attacker gaining administrative privileges, data exfiltration, installation of persistent backdoors, and lateral movement to other systems.
Likely Case
Remote code execution leading to web server compromise, data theft, and potential ransomware deployment.
If Mitigated
Limited impact with proper input validation and database permissions, potentially only allowing data viewing without code execution.
🎯 Exploit Status
SQL injection vulnerabilities are commonly weaponized. The GitHub issue shows proof of concept exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown - No official patch documented
Vendor Advisory: No official vendor advisory found
Restart Required: No
Instructions:
1. Check for official updates from vaeThink developers
2. If no patch available, implement workarounds
3. Consider migrating to alternative software if maintenance has ceased
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation and parameterized queries for the condition parameter
Implement prepared statements: $stmt = $pdo->prepare('SELECT * FROM vae_admin_rule WHERE condition = ?');
$stmt->execute([$user_input]);
Web Application Firewall (WAF)
allDeploy WAF rules to block SQL injection patterns
ModSecurity rule: SecRule ARGS:condition "@detectSQLi" "id:1001,phase:2,deny,status:403"
🧯 If You Can't Patch
- Isolate the affected system from critical networks and implement strict network segmentation
- Implement application-level monitoring and alerting for suspicious database queries
🔍 How to Verify
Check if Vulnerable:
Check if vaeThink v1.0.1 is installed by examining version files or checking the admin interfaceCheck Version:
Check /application/config/version.php or similar version configuration filesVerify Fix Applied:
Test the condition parameter with SQL injection payloads to verify they are properly sanitized📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed login attempts followed by successful admin access
- Unexpected PHP file creation in web directories
Network Indicators:
- Unusual outbound connections from web server
- Large data transfers from database server
SIEM Query:
source="web_logs" AND (condition="*UNION*" OR condition="*SELECT*" OR condition="*INSERT*" OR condition="*UPDATE*")