用户提问: 55536TQH5fq')) OR 344=(SELECT 344 FROM PG_SLEEP(34.16))...
Ai回答: This appears to be an attempted SQL injection payload. Let me analyze it:
```sql
55536TQH5fq')) OR 344=(SELECT 344 FROM PG_SLEEP(34.16))--
```
This is a malicious SQL injection attempt with these characteristics:
1. It starts with a random string `55536TQH5fq'` likely meant to terminate a previous string literal
2. Uses `'))` to close parentheses and quotes (suggesting the attack is targeting a nested query)
3. Contains a time-based blind SQL injection: `OR 344=(SELECT 344 FROM PG_SLEEP(34.16))`
- This would make the database sleep for 34.16 seconds if successful
- The `PG_SLEEP` function indicates this targets PostgreSQL databases
4. Ends with `--` to comment out the rest of the original query
This is clearly an attack probing for SQL injection vulnerabilities, specifically:
- Testing if the application is vulnerable to time-based blind SQLi
- Targeting PostgreSQL database systems
- Attempting to bypass potential filtering by using numeric comparisons
Such injection attempts should be blocked by:
1. Using parameterized queries/prepared statements
2. Implementing proper input validation
3. Applying the principle of least privilege to database accounts
4. Using web application firewalls to detect such patterns
0
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提问时间: 2025-05-30 14:15:19
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