dvwa靶场sql盲注medium级别
时间: 2024-12-28 16:16:45 浏览: 47
### DVWA SQL Blind Injection Medium Level Attack Method Tutorial
In the context of DVWA (Damn Vulnerable Web Application), exploiting a SQL blind injection vulnerability at the medium difficulty level involves understanding how to interact with the application and craft specific payloads that can infer database structure or content based on true/false responses.
The command provided serves as an example payload used within such attacks, specifically designed to retrieve table names from the current database schema by leveraging conditional logic in queries:
```sql
select table_name from information_schema.tables where table_schema=database()[^1]
```
For executing this type of attack against DVWA's SQLi Blind challenge set to 'Medium', one approach is using automated tools like SqlMap which simplifies the process significantly. An invocation might look similar to what has been shared previously:
```bash
py3 sqlmap.py -u "http://192.168.123.20/vulnerabilities/sqli_blind/?id=1&Submit=Submit#" --cookie="PHPSESSID=248dmjg65dksvfvf8kk0k7vqj0; security=low" --current-db[^2]
```
This tool automates much of the work involved in detecting vulnerabilities, extracting data through time-based boolean conditions without direct output feedback, and even taking over databases under certain circumstances—all while adhering to user-defined constraints regarding legality and ethics.
When performing manual exploitation for educational purposes only, consider crafting custom scripts or modifying existing ones according to your environment setup. The key lies in constructing queries that cause different behaviors depending on whether they evaluate to true or false, allowing inference about underlying structures indirectly via side-channel observations.
--related questions--
1. How does changing the security level affect the effectiveness of SQL injection techniques?
2. What are some common defenses implemented against SQL injections?
3. Can you explain more about Information Schema Tables and their role in discovering database objects during penetration testing?
4. Are there any particular challenges associated with exploiting blind SQL injections compared to error-based methods?
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