A security researcher discovered a high-severity blind SQL injection vulnerability in a video API endpoint caused by unsanitized user input in the sort parameter. Exploiting this vulnerability could allow attackers to extract sensitive user data and impersonate high-privilege accounts like admin. #BlindSQLInjection #API Vulnerability
Keypoints
- The vulnerable endpoint directly interpolates user input into the SQL ORDER BY clause without validation.
- The attack used time-based blind SQL injection techniques to infer data without visible errors or output.
- Attackers can extract usernames, emails, password hashes, and enumerate database tables and columns.
- Mitigation involves using parameterized queries, input validation, and whitelisting accepted values.
- Additional defenses include rate limiting and deploying Web Application Firewalls to prevent injection attempts.