SQL Injection
SQL Injection vulnerabilities occur when user input is improperly sanitized, allowing attackers to inject malicious SQL commands. This can lead to unauthorized data access, modification, or deletion.
1
HIGH
Injection
Understanding SQL Injection
SQL Injection occurs when an application fails to properly validate or sanitize user input before incorporating it into SQL queries. Attackers can manipulate these queries to access, modify, or delete database contents.
Despite being well-known for decades, SQL injection remains in the OWASP Top 10 and affects countless applications. Modern frameworks have made prevention easier, but legacy systems and custom queries remain vulnerable.
How to Identify
- •Test input fields with SQL metacharacters (single quotes, semicolons)
- •Look for error messages revealing database structure
- •Try Boolean-based blind injection techniques
- •Check for time-based injection in blind scenarios
Prevention Best Practices
- ✓Always use parameterized queries or prepared statements
- ✓Implement least-privilege database accounts
- ✓Validate and sanitize all user input
- ✓Use ORM frameworks with built-in protections
- ✓Deploy web application firewalls (WAF)
SQL Injection CVEs (1)
| Description | Vendor / Product | Exploit Status | |||
|---|---|---|---|---|---|
| CVE-2022-35737 | 7.5 | This vulnerability allows an attacker to potentially crash the SQLite application or execute arbitrary code by sending an extremely large string to a specific function. It can be exploited if the application uses vulnerable versions of SQLite and does not properly validate the size of the input it receives. | sqlitesqlite | Exploit Available | over 3 years agoAug 3, 2022 |