CVE-2021-38303
📋 TL;DR
This SQL injection vulnerability in Sureline SUREedge Migrator allows attackers to execute arbitrary SQL commands on the database. It affects organizations using Sureline SUREedge Migrator version 7.0.7.29360 for data migration operations. Successful exploitation could lead to data theft, manipulation, or complete system compromise.
💻 Affected Systems
- Sureline SUREedge Migrator
📦 What is this software?
Sureedge Migrator by Surelinesystems
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data exfiltration, data destruction, privilege escalation to system-level access, and potential lateral movement to other systems.
Likely Case
Unauthorized data access and manipulation, extraction of sensitive information, and potential application-level compromise.
If Mitigated
Limited impact with proper input validation, parameterized queries, and network segmentation in place.
🎯 Exploit Status
SQL injection vulnerabilities are commonly exploited with readily available tools and techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Consider upgrading to a newer version if available or implementing workarounds.
🔧 Temporary Workarounds
Implement Input Validation
allAdd server-side input validation to sanitize user inputs before processing SQL queries.
Use Parameterized Queries
allReplace dynamic SQL queries with parameterized queries or prepared statements.
Network Segmentation
allIsolate the SUREedge Migrator system from critical networks and databases.
🧯 If You Can't Patch
- Implement a web application firewall (WAF) with SQL injection rules
- Restrict database user permissions to minimum required access
- Monitor for unusual database queries and access patterns
🔍 How to Verify
Check if Vulnerable:
Check if running Sureline SUREedge Migrator version 7.0.7.29360. Review application logs for SQL error messages or unusual queries.Check Version:
Check application documentation or interface for version information. On Windows: Check installed programs list. On Linux: Check package manager or application directory.Verify Fix Applied:
Test with SQL injection payloads after implementing fixes. Verify no unauthorized SQL execution occurs.📡 Detection & Monitoring
Log Indicators:
- SQL syntax errors in application logs
- Unusual database queries
- Multiple failed login attempts followed by SQL queries
Network Indicators:
- Unusual database connection patterns
- SQL keywords in HTTP requests to the application
SIEM Query:
source="application_logs" AND ("SQL syntax" OR "unclosed quotation" OR "syntax error")