質問編集履歴
4
教えていただいた箇所の修正後、一つだけエラーが出たので更新
test
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test
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@@ -10,460 +10,436 @@
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エラーメッセージを全文記載いたします。
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サーバ側のTracebackは
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```
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Exception in thread Thread-1:
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Traceback (most recent call last):
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File "C:\Users\--\AppData\Local\Programs\Python\Python38-32\lib\threading.py", line 932, in _bootstrap_inner
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self.run()
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File "C:\Users\--\AppData\Local\Programs\Python\Python38-32\lib\threading.py", line 870, in run
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self._target(*self._args, **self._kwargs)
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'utf-8' codec can't decode byte 0x83 in position 1: invalid start byte
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cmd_buffer += client_socket.recv(1024).decode() # サーバ側例外発生箇所
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TypeError: can't concat str to bytes
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```
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### 該当のソースコード
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エラーが起きているソースコードを追記させていただきます。
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以下のリンクのコードを参考にしています。
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https://github.com/AllGloryToTheHypnotoad/Black-Hat-Python/blob/master/BHP-Code/Chapter2/bhnet.py
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一つのファイルの実行時に指定されたオプションで、サーバ側とクライアント側の動作が変わる様になっています。
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サーバとして動作させる場合は、python ./bhnet.py -l -p 9999 -c とオプションを指定し、
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そのサーバに接続する際は、python ./bhnet.py -t localhost -p 9999 とオプションを指定して起動しています。
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・encoding='utf-8'を追加し、再度更新しました
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```python
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# coding:utf-8
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# filename : bhnet.py
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import sys
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import socket
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import getopt
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import threading
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import subprocess
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import traceback
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# global
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listen = False
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command = False
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upload = ""
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execute = ""
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target = ""
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upload_destination = ""
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port = 0
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# コマンドを実行し出力を返す
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def run_command(command):
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command = command.rstrip()
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try:
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output = subprocess.check_output(
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command, stderr=subprocess.STDOUT, shell=True)
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output = output.decode(encoding="shift-jis")
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# output = output.decode(encoding="utf-8") # 'utf-8' codec can't decode byte 0x83 in position 1: invalid start byte
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except Exception as e:
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output = str(e)
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output += "\r\n"
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output += "Failed to execute command.\r\n"
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return output
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# クライアントが送ったデータを処理する
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def client_handler(client_socket):
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global upload
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global execute
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global command
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# uploadが指定されたときの動作
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if len(upload_destination):
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file_buffer = ""
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while True:
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data = client_socket.recv(1024).decode(encoding='utf-8')
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if not data:
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break
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else:
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file_buffer += data
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try:
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file_descriptor = open(upload_destination, "wb")
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file_descriptor.write(file_buffer)
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file_descriptor.close()
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client_socket.send(
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b"Successfully saved file to %s\r\n" % upload_destination)
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except Exception:
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client_socket.send(
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b"Failed saved file to %s\r\n" % upload_destination)
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# コマンドの実行(execute)が指定されたときの動作
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if len(execute):
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output = run_command(execute)
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client_socket.send(output.encode(encoding='utf-8'))
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# commandが指定された場合はシェルとして動作する
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if command:
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while True:
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propmt = "<BHP:#> "
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client_socket.send(propmt.encode(encoding='utf-8'))
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cmd_buffer = ""
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while "\n" not in cmd_buffer:
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cmd_buffer += client_socket.recv(1024).decode(encoding='utf-8')
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response = run_command(cmd_buffer)
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client_socket.send(response.encode(encoding='utf-8'))
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# 受信用の関数
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def server_loop():
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global target
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global port
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# ターゲットの指定がなければすべてのアクセスを受け付ける
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if not len(target):
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target = "0.0.0.0"
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server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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server.bind((target, port))
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server.listen(5)
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while True:
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client_socket, addr = server.accept()
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# クライアントの処理を行うスレッドの作成
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client_thread = threading.Thread(
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target=client_handler, args=(client_socket,))
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client_thread.start()
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# クライアントとしてデータを送信する関数
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def client_sender(buffer):
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client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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try:
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client.connect((target, port))
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print("connected!")
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if len(buffer):
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client.send(buffer.encode(encoding='utf-8'))
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while True:
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recv_len = 1
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response = ""
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while recv_len:
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data = client.recv(4096).decode(encoding='utf-8')
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recv_len = len(data)
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response += data
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if recv_len < 4096:
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break
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print(response)
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buffer = input("")
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buffer += "\n"
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client.send(buffer.encode(encoding='utf-8'))
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except Exception as e:
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print(e)
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print(traceback.format_exc())
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print("[*] Exception! Exiting.")
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client.close()
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def main():
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global listen
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global port
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global execute
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352
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global command
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global upload_destination
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global target
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358
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359
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361
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if not len(sys.argv[1:]):
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363
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sys.exit(0)
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364
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try:
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368
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369
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opts, args = getopt.getopt(
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371
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sys.argv[1:],
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"hle:t:p:cu",
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375
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["help", "listen", "execute=", "target=",
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377
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"port=", "command", "upload="]
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)
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except getopt.GetoptError as err:
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382
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383
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print(str(err))
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384
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385
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for o, a in opts:
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386
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387
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if o in ("-l", "--listen"):
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388
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389
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listen = True
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390
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391
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elif o in ("-e", "--execute"):
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392
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+
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393
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execute = a
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394
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+
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395
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+
elif o in ("-c", "--commandshell"):
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396
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397
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command = True
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398
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+
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399
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+
elif o in ("-u", "--upload"):
|
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400
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+
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401
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+
upload_destination = a
|
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402
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+
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403
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+
elif o in ("-t", "--target"):
|
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404
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+
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405
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+
target = a
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406
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+
|
|
407
|
+
elif o in ("-p", "--port"):
|
|
408
|
+
|
|
409
|
+
port = int(a)
|
|
410
|
+
|
|
411
|
+
else:
|
|
412
|
+
|
|
413
|
+
assert False, "Unhandled Option"
|
|
414
|
+
|
|
415
|
+
|
|
416
|
+
|
|
417
|
+
# クライアントとして動作
|
|
418
|
+
|
|
419
|
+
if not listen and len(target) and port > 0:
|
|
420
|
+
|
|
421
|
+
buffer = sys.stdin.read()
|
|
422
|
+
|
|
423
|
+
client_sender(buffer)
|
|
424
|
+
|
|
425
|
+
|
|
426
|
+
|
|
427
|
+
# サーバとして動作
|
|
428
|
+
|
|
429
|
+
if listen:
|
|
430
|
+
|
|
431
|
+
print("...")
|
|
432
|
+
|
|
433
|
+
server_loop()
|
|
434
|
+
|
|
435
|
+
|
|
436
|
+
|
|
437
|
+
|
|
438
|
+
|
|
439
|
+
main()
|
|
42
440
|
|
|
43
441
|
```
|
|
44
442
|
|
|
45
|
-
Traceback (most recent call last):
|
|
46
|
-
|
|
47
|
-
File "./bhnet.py", line 122, in client_sender
|
|
48
|
-
|
|
49
|
-
data = client.recv(4096).decode()
|
|
50
|
-
|
|
51
|
-
UnicodeDecodeError: 'utf-8' codec can't decode byte 0x83 in position 1: invalid start byte
|
|
52
|
-
|
|
53
|
-
```
|
|
54
|
-
|
|
55
|
-
|
|
56
|
-
|
|
57
|
-
|
|
58
|
-
|
|
59
|
-
|
|
60
|
-
|
|
61
|
-
### 該当のソースコード
|
|
62
|
-
|
|
63
|
-
|
|
64
|
-
|
|
65
|
-
|
|
66
|
-
|
|
67
|
-
エラーが起きているソースコードを追記させていただきます。
|
|
68
|
-
|
|
69
|
-
以下のリンクのコードを参考にしています。
|
|
70
|
-
|
|
71
|
-
https://github.com/AllGloryToTheHypnotoad/Black-Hat-Python/blob/master/BHP-Code/Chapter2/bhnet.py
|
|
72
|
-
|
|
73
|
-
一つのファイルの実行時に指定されたオプションで、サーバ側とクライアント側の動作が変わる様になっています。
|
|
74
|
-
|
|
75
|
-
サーバとして動作させる場合は、python ./bhnet.py -l -p 9999 -c とオプションを指定し、
|
|
76
|
-
|
|
77
|
-
そのサーバに接続する際は、python ./bhnet.py -t localhost -p 9999 とオプションを指定して起動しています。
|
|
78
|
-
|
|
79
|
-
```python
|
|
80
|
-
|
|
81
|
-
# coding:utf-8
|
|
82
|
-
|
|
83
|
-
|
|
84
|
-
|
|
85
|
-
# filename : bhnet.py
|
|
86
|
-
|
|
87
|
-
|
|
88
|
-
|
|
89
|
-
import sys
|
|
90
|
-
|
|
91
|
-
import socket
|
|
92
|
-
|
|
93
|
-
import getopt
|
|
94
|
-
|
|
95
|
-
import threading
|
|
96
|
-
|
|
97
|
-
import subprocess
|
|
98
|
-
|
|
99
|
-
|
|
100
|
-
|
|
101
|
-
import traceback
|
|
102
|
-
|
|
103
|
-
|
|
104
|
-
|
|
105
|
-
# global
|
|
106
|
-
|
|
107
|
-
listen = False
|
|
108
|
-
|
|
109
|
-
command = False
|
|
110
|
-
|
|
111
|
-
upload = ""
|
|
112
|
-
|
|
113
|
-
execute = ""
|
|
114
|
-
|
|
115
|
-
target = ""
|
|
116
|
-
|
|
117
|
-
upload_destination = ""
|
|
118
|
-
|
|
119
|
-
port = 0
|
|
120
|
-
|
|
121
|
-
|
|
122
|
-
|
|
123
|
-
|
|
124
|
-
|
|
125
|
-
# コマンドを実行し出力を返す
|
|
126
|
-
|
|
127
|
-
def run_command(command):
|
|
128
|
-
|
|
129
|
-
command = command.rstrip()
|
|
130
|
-
|
|
131
|
-
|
|
132
|
-
|
|
133
|
-
try:
|
|
134
|
-
|
|
135
|
-
output = subprocess.check_output(
|
|
136
|
-
|
|
137
|
-
command, stderr=subprocess.STDOUT, shell=True)
|
|
138
|
-
|
|
139
|
-
except Exception:
|
|
140
|
-
|
|
141
|
-
output = "Failed to execute command.\r\n"
|
|
142
|
-
|
|
143
|
-
|
|
144
|
-
|
|
145
|
-
return output
|
|
146
|
-
|
|
147
|
-
|
|
148
|
-
|
|
149
|
-
|
|
150
|
-
|
|
151
|
-
# クライアントが送ったデータを処理する
|
|
152
|
-
|
|
153
|
-
def client_handler(client_socket):
|
|
154
|
-
|
|
155
|
-
global upload
|
|
156
|
-
|
|
157
|
-
global execute
|
|
158
|
-
|
|
159
|
-
global command
|
|
160
|
-
|
|
161
|
-
|
|
162
|
-
|
|
163
|
-
# uploadが指定されたときの動作
|
|
164
|
-
|
|
165
|
-
if len(upload_destination):
|
|
166
|
-
|
|
167
|
-
file_buffer = ""
|
|
168
|
-
|
|
169
|
-
|
|
170
|
-
|
|
171
|
-
while True:
|
|
172
|
-
|
|
173
|
-
data = client_socket.recv(1024).decode()
|
|
174
|
-
|
|
175
|
-
|
|
176
|
-
|
|
177
|
-
if not data:
|
|
178
|
-
|
|
179
|
-
break
|
|
180
|
-
|
|
181
|
-
else:
|
|
182
|
-
|
|
183
|
-
file_buffer += data
|
|
184
|
-
|
|
185
|
-
|
|
186
|
-
|
|
187
|
-
try:
|
|
188
|
-
|
|
189
|
-
file_descriptor = open(upload_destination, "wb")
|
|
190
|
-
|
|
191
|
-
file_descriptor.write(file_buffer)
|
|
192
|
-
|
|
193
|
-
file_descriptor.close()
|
|
194
|
-
|
|
195
|
-
|
|
196
|
-
|
|
197
|
-
client_socket.send(
|
|
198
|
-
|
|
199
|
-
b"Successfully saved file to %s\r\n" % upload_destination)
|
|
200
|
-
|
|
201
|
-
except Exception:
|
|
202
|
-
|
|
203
|
-
client_socket.send(
|
|
204
|
-
|
|
205
|
-
b"Failed saved file to %s\r\n" % upload_destination)
|
|
206
|
-
|
|
207
|
-
|
|
208
|
-
|
|
209
|
-
# コマンドの実行(execute)が指定されたときの動作
|
|
210
|
-
|
|
211
|
-
if len(execute):
|
|
212
|
-
|
|
213
|
-
output = run_command(execute)
|
|
214
|
-
|
|
215
|
-
client_socket.send(output)
|
|
216
|
-
|
|
217
|
-
|
|
218
|
-
|
|
219
|
-
# commandが指定された場合はシェルとして動作する
|
|
220
|
-
|
|
221
|
-
if command:
|
|
222
|
-
|
|
223
|
-
while True:
|
|
224
|
-
|
|
225
|
-
propmt = "<BHP:#> "
|
|
226
|
-
|
|
227
|
-
client_socket.send(propmt.encode())
|
|
228
|
-
|
|
229
|
-
|
|
230
|
-
|
|
231
|
-
cmd_buffer = b""
|
|
232
|
-
|
|
233
|
-
while b"\n" not in cmd_buffer:
|
|
234
|
-
|
|
235
|
-
cmd_buffer += client_socket.recv(1024).decode() # サーバ側例外発生箇所
|
|
236
|
-
|
|
237
|
-
response = run_command(cmd_buffer)
|
|
238
|
-
|
|
239
|
-
|
|
240
|
-
|
|
241
|
-
client_socket.send(response)
|
|
242
|
-
|
|
243
|
-
|
|
244
|
-
|
|
245
|
-
|
|
246
|
-
|
|
247
|
-
# 受信用の関数
|
|
248
|
-
|
|
249
|
-
def server_loop():
|
|
250
|
-
|
|
251
|
-
global target
|
|
252
|
-
|
|
253
|
-
global port
|
|
254
|
-
|
|
255
|
-
|
|
256
|
-
|
|
257
|
-
# ターゲットの指定がなければすべてのアクセスを受け付ける
|
|
258
|
-
|
|
259
|
-
if not len(target):
|
|
260
|
-
|
|
261
|
-
target = "0.0.0.0"
|
|
262
|
-
|
|
263
|
-
|
|
264
|
-
|
|
265
|
-
server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
266
|
-
|
|
267
|
-
server.bind((target, port))
|
|
268
|
-
|
|
269
|
-
|
|
270
|
-
|
|
271
|
-
server.listen(5)
|
|
272
|
-
|
|
273
|
-
|
|
274
|
-
|
|
275
|
-
while True:
|
|
276
|
-
|
|
277
|
-
client_socket, addr = server.accept()
|
|
278
|
-
|
|
279
|
-
|
|
280
|
-
|
|
281
|
-
# クライアントの処理を行うスレッドの作成
|
|
282
|
-
|
|
283
|
-
client_thread = threading.Thread(
|
|
284
|
-
|
|
285
|
-
target=client_handler, args=(client_socket,))
|
|
286
|
-
|
|
287
|
-
client_thread.start()
|
|
288
|
-
|
|
289
|
-
|
|
290
|
-
|
|
291
|
-
|
|
292
|
-
|
|
293
|
-
# クライアントとしてデータを送信する関数
|
|
294
|
-
|
|
295
|
-
def client_sender(buffer):
|
|
296
|
-
|
|
297
|
-
|
|
298
|
-
|
|
299
|
-
client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
300
|
-
|
|
301
|
-
|
|
302
|
-
|
|
303
|
-
try:
|
|
304
|
-
|
|
305
|
-
client.connect((target, port))
|
|
306
|
-
|
|
307
|
-
print("connected!")
|
|
308
|
-
|
|
309
|
-
|
|
310
|
-
|
|
311
|
-
if len(buffer):
|
|
312
|
-
|
|
313
|
-
client.send(buffer.encode())
|
|
314
|
-
|
|
315
|
-
|
|
316
|
-
|
|
317
|
-
while True:
|
|
318
|
-
|
|
319
|
-
recv_len = 1
|
|
320
|
-
|
|
321
|
-
response = ""
|
|
322
|
-
|
|
323
|
-
|
|
324
|
-
|
|
325
|
-
while recv_len:
|
|
326
|
-
|
|
327
|
-
# クライアント側例外発生箇所
|
|
328
|
-
|
|
329
|
-
data = client.recv(4096).decode()
|
|
330
|
-
|
|
331
|
-
recv_len = len(data)
|
|
332
|
-
|
|
333
|
-
response += data
|
|
334
|
-
|
|
335
|
-
|
|
336
|
-
|
|
337
|
-
if recv_len < 4096:
|
|
338
|
-
|
|
339
|
-
break
|
|
340
|
-
|
|
341
|
-
|
|
342
|
-
|
|
343
|
-
print(response)
|
|
344
|
-
|
|
345
|
-
|
|
346
|
-
|
|
347
|
-
buffer = input("")
|
|
348
|
-
|
|
349
|
-
buffer += "\n"
|
|
350
|
-
|
|
351
|
-
|
|
352
|
-
|
|
353
|
-
client.send(buffer.encode(encoding="utf-8"))
|
|
354
|
-
|
|
355
|
-
except Exception as e:
|
|
356
|
-
|
|
357
|
-
print(e)
|
|
358
|
-
|
|
359
|
-
print(traceback.format_exc())
|
|
360
|
-
|
|
361
|
-
print("[*] Exception! Exiting.")
|
|
362
|
-
|
|
363
|
-
client.close()
|
|
364
|
-
|
|
365
|
-
|
|
366
|
-
|
|
367
|
-
|
|
368
|
-
|
|
369
|
-
def main():
|
|
370
|
-
|
|
371
|
-
global listen
|
|
372
|
-
|
|
373
|
-
global port
|
|
374
|
-
|
|
375
|
-
global execute
|
|
376
|
-
|
|
377
|
-
global command
|
|
378
|
-
|
|
379
|
-
global upload_destination
|
|
380
|
-
|
|
381
|
-
global target
|
|
382
|
-
|
|
383
|
-
|
|
384
|
-
|
|
385
|
-
if not len(sys.argv[1:]):
|
|
386
|
-
|
|
387
|
-
sys.exit(0)
|
|
388
|
-
|
|
389
|
-
|
|
390
|
-
|
|
391
|
-
try:
|
|
392
|
-
|
|
393
|
-
opts, args = getopt.getopt(
|
|
394
|
-
|
|
395
|
-
sys.argv[1:],
|
|
396
|
-
|
|
397
|
-
"hle:t:p:cu",
|
|
398
|
-
|
|
399
|
-
["help", "listen", "execute=", "target=",
|
|
400
|
-
|
|
401
|
-
"port=", "command", "upload="]
|
|
402
|
-
|
|
403
|
-
)
|
|
404
|
-
|
|
405
|
-
except getopt.GetoptError as err:
|
|
406
|
-
|
|
407
|
-
print(str(err))
|
|
408
|
-
|
|
409
|
-
for o, a in opts:
|
|
410
|
-
|
|
411
|
-
if o in ("-l", "--listen"):
|
|
412
|
-
|
|
413
|
-
listen = True
|
|
414
|
-
|
|
415
|
-
elif o in ("-e", "--execute"):
|
|
416
|
-
|
|
417
|
-
execute = a
|
|
418
|
-
|
|
419
|
-
elif o in ("-c", "--commandshell"):
|
|
420
|
-
|
|
421
|
-
command = True
|
|
422
|
-
|
|
423
|
-
elif o in ("-u", "--upload"):
|
|
424
|
-
|
|
425
|
-
upload_destination = a
|
|
426
|
-
|
|
427
|
-
elif o in ("-t", "--target"):
|
|
428
|
-
|
|
429
|
-
target = a
|
|
430
|
-
|
|
431
|
-
elif o in ("-p", "--port"):
|
|
432
|
-
|
|
433
|
-
port = int(a)
|
|
434
|
-
|
|
435
|
-
else:
|
|
436
|
-
|
|
437
|
-
assert False, "Unhandled Option"
|
|
438
|
-
|
|
439
|
-
|
|
440
|
-
|
|
441
|
-
# クライアントとして動作
|
|
442
|
-
|
|
443
|
-
if not listen and len(target) and port > 0:
|
|
444
|
-
|
|
445
|
-
buffer = sys.stdin.read()
|
|
446
|
-
|
|
447
|
-
client_sender(buffer)
|
|
448
|
-
|
|
449
|
-
|
|
450
|
-
|
|
451
|
-
# サーバとして動作
|
|
452
|
-
|
|
453
|
-
if listen:
|
|
454
|
-
|
|
455
|
-
print("...")
|
|
456
|
-
|
|
457
|
-
server_loop()
|
|
458
|
-
|
|
459
|
-
|
|
460
|
-
|
|
461
|
-
|
|
462
|
-
|
|
463
|
-
main()
|
|
464
|
-
|
|
465
|
-
```
|
|
466
|
-
|
|
467
443
|
|
|
468
444
|
|
|
469
445
|
|
|
@@ -478,6 +454,12 @@
|
|
|
478
454
|
|
|
479
455
|
|
|
480
456
|
|
|
457
|
+
再度更新いたしました
|
|
458
|
+
|
|
459
|
+
重ねてお願いとなってしまいますが、よろしくお願いいたします。
|
|
460
|
+
|
|
461
|
+
|
|
462
|
+
|
|
481
463
|
### 補足情報（FW/ツールのバージョンなど）
|
|
482
464
|
|
|
483
465
|
|
3
プログラムのコードすべてを追記、Traceback全文を追記
test
CHANGED
|
File without changes
|
test
CHANGED
|
@@ -28,11 +28,11 @@
|
|
|
28
28
|
|
|
29
29
|
self._target(*self._args, **self._kwargs)
|
|
30
30
|
|
|
31
|
-
File "./bhnet.py", line 7
|
|
31
|
+
File "./bhnet.py", line 78, in client_handler
|
|
32
|
-
|
|
32
|
+
|
|
33
|
-
cmd_buffer += client_socket.recv(1024).decode()
|
|
33
|
+
cmd_buffer += client_socket.recv(1024).decode() # サーバ側例外発生箇所
|
|
34
|
-
|
|
34
|
+
|
|
35
|
-
|
|
35
|
+
TypeError: can't concat str to bytes
|
|
36
36
|
|
|
37
37
|
```
|
|
38
38
|
|
|
@@ -228,9 +228,9 @@
|
|
|
228
228
|
|
|
229
229
|
|
|
230
230
|
|
|
231
|
-
cmd_buffer = ""
|
|
231
|
+
cmd_buffer = b""
|
|
232
|
-
|
|
232
|
+
|
|
233
|
-
while "\n" not in cmd_buffer:
|
|
233
|
+
while b"\n" not in cmd_buffer:
|
|
234
234
|
|
|
235
235
|
cmd_buffer += client_socket.recv(1024).decode() # サーバ側例外発生箇所
|
|
236
236
|
|
2
プログラムのコードすべてを追記、Traceback全文を追記
test
CHANGED
|
File without changes
|
test
CHANGED
|
@@ -10,79 +10,471 @@
|
|
|
10
10
|
|
|
11
11
|
|
|
12
12
|
|
|
13
|
-
|
|
13
|
+
エラーメッセージを全文記載いたします。
|
|
14
|
+
|
|
15
|
+
サーバ側のTracebackは
|
|
14
16
|
|
|
15
17
|
```
|
|
16
18
|
|
|
19
|
+
Exception in thread Thread-1:
|
|
20
|
+
|
|
21
|
+
Traceback (most recent call last):
|
|
22
|
+
|
|
23
|
+
File "C:\Users\--\AppData\Local\Programs\Python\Python38-32\lib\threading.py", line 932, in _bootstrap_inner
|
|
24
|
+
|
|
25
|
+
self.run()
|
|
26
|
+
|
|
27
|
+
File "C:\Users\--\AppData\Local\Programs\Python\Python38-32\lib\threading.py", line 870, in run
|
|
28
|
+
|
|
29
|
+
self._target(*self._args, **self._kwargs)
|
|
30
|
+
|
|
17
|
-
|
|
31
|
+
File "./bhnet.py", line 74, in client_handler
|
|
32
|
+
|
|
33
|
+
cmd_buffer += client_socket.recv(1024).decode()
|
|
34
|
+
|
|
35
|
+
ConnectionResetError: [WinError 10054] 既存の接続はリモート ホストに強制的に切断されました。
|
|
18
36
|
|
|
19
37
|
```
|
|
20
38
|
|
|
21
39
|
|
|
22
40
|
|
|
41
|
+
クライアント側のTracebackは
|
|
42
|
+
|
|
43
|
+
```
|
|
44
|
+
|
|
45
|
+
Traceback (most recent call last):
|
|
46
|
+
|
|
47
|
+
File "./bhnet.py", line 122, in client_sender
|
|
48
|
+
|
|
49
|
+
data = client.recv(4096).decode()
|
|
50
|
+
|
|
51
|
+
UnicodeDecodeError: 'utf-8' codec can't decode byte 0x83 in position 1: invalid start byte
|
|
52
|
+
|
|
53
|
+
```
|
|
54
|
+
|
|
55
|
+
|
|
56
|
+
|
|
57
|
+
|
|
58
|
+
|
|
59
|
+
|
|
60
|
+
|
|
23
61
|
### 該当のソースコード
|
|
24
62
|
|
|
25
63
|
|
|
26
64
|
|
|
65
|
+
|
|
66
|
+
|
|
67
|
+
エラーが起きているソースコードを追記させていただきます。
|
|
68
|
+
|
|
69
|
+
以下のリンクのコードを参考にしています。
|
|
70
|
+
|
|
71
|
+
https://github.com/AllGloryToTheHypnotoad/Black-Hat-Python/blob/master/BHP-Code/Chapter2/bhnet.py
|
|
72
|
+
|
|
73
|
+
一つのファイルの実行時に指定されたオプションで、サーバ側とクライアント側の動作が変わる様になっています。
|
|
74
|
+
|
|
75
|
+
サーバとして動作させる場合は、python ./bhnet.py -l -p 9999 -c とオプションを指定し、
|
|
76
|
+
|
|
77
|
+
そのサーバに接続する際は、python ./bhnet.py -t localhost -p 9999 とオプションを指定して起動しています。
|
|
78
|
+
|
|
27
79
|
```python
|
|
28
80
|
|
|
29
|
-
c
|
|
30
|
-
|
|
31
|
-
|
|
32
|
-
|
|
33
|
-
t
|
|
34
|
-
|
|
35
|
-
|
|
36
|
-
|
|
37
|
-
|
|
38
|
-
|
|
39
|
-
|
|
40
|
-
|
|
41
|
-
|
|
42
|
-
|
|
43
|
-
|
|
44
|
-
|
|
45
|
-
|
|
46
|
-
|
|
47
|
-
|
|
48
|
-
|
|
49
|
-
|
|
50
|
-
|
|
51
|
-
|
|
52
|
-
|
|
53
|
-
|
|
54
|
-
|
|
55
|
-
|
|
56
|
-
|
|
57
|
-
|
|
58
|
-
|
|
59
|
-
|
|
81
|
+
# coding:utf-8
|
|
82
|
+
|
|
83
|
+
|
|
84
|
+
|
|
85
|
+
# filename : bhnet.py
|
|
86
|
+
|
|
87
|
+
|
|
88
|
+
|
|
89
|
+
import sys
|
|
90
|
+
|
|
91
|
+
import socket
|
|
92
|
+
|
|
93
|
+
import getopt
|
|
94
|
+
|
|
95
|
+
import threading
|
|
96
|
+
|
|
97
|
+
import subprocess
|
|
98
|
+
|
|
99
|
+
|
|
100
|
+
|
|
101
|
+
import traceback
|
|
102
|
+
|
|
103
|
+
|
|
104
|
+
|
|
105
|
+
# global
|
|
106
|
+
|
|
107
|
+
listen = False
|
|
108
|
+
|
|
109
|
+
command = False
|
|
110
|
+
|
|
111
|
+
upload = ""
|
|
112
|
+
|
|
113
|
+
execute = ""
|
|
114
|
+
|
|
115
|
+
target = ""
|
|
116
|
+
|
|
117
|
+
upload_destination = ""
|
|
118
|
+
|
|
119
|
+
port = 0
|
|
120
|
+
|
|
121
|
+
|
|
122
|
+
|
|
123
|
+
|
|
124
|
+
|
|
125
|
+
# コマンドを実行し出力を返す
|
|
126
|
+
|
|
127
|
+
def run_command(command):
|
|
128
|
+
|
|
129
|
+
command = command.rstrip()
|
|
130
|
+
|
|
131
|
+
|
|
132
|
+
|
|
133
|
+
try:
|
|
134
|
+
|
|
135
|
+
output = subprocess.check_output(
|
|
136
|
+
|
|
137
|
+
command, stderr=subprocess.STDOUT, shell=True)
|
|
138
|
+
|
|
139
|
+
except Exception:
|
|
140
|
+
|
|
141
|
+
output = "Failed to execute command.\r\n"
|
|
142
|
+
|
|
143
|
+
|
|
144
|
+
|
|
145
|
+
return output
|
|
146
|
+
|
|
147
|
+
|
|
148
|
+
|
|
149
|
+
|
|
150
|
+
|
|
151
|
+
# クライアントが送ったデータを処理する
|
|
152
|
+
|
|
153
|
+
def client_handler(client_socket):
|
|
154
|
+
|
|
155
|
+
global upload
|
|
156
|
+
|
|
157
|
+
global execute
|
|
158
|
+
|
|
159
|
+
global command
|
|
160
|
+
|
|
161
|
+
|
|
162
|
+
|
|
163
|
+
# uploadが指定されたときの動作
|
|
164
|
+
|
|
165
|
+
if len(upload_destination):
|
|
166
|
+
|
|
167
|
+
file_buffer = ""
|
|
168
|
+
|
|
169
|
+
|
|
170
|
+
|
|
171
|
+
while True:
|
|
172
|
+
|
|
173
|
+
data = client_socket.recv(1024).decode()
|
|
174
|
+
|
|
175
|
+
|
|
176
|
+
|
|
177
|
+
if not data:
|
|
178
|
+
|
|
179
|
+
break
|
|
180
|
+
|
|
181
|
+
else:
|
|
182
|
+
|
|
183
|
+
file_buffer += data
|
|
184
|
+
|
|
185
|
+
|
|
186
|
+
|
|
187
|
+
try:
|
|
188
|
+
|
|
189
|
+
file_descriptor = open(upload_destination, "wb")
|
|
190
|
+
|
|
191
|
+
file_descriptor.write(file_buffer)
|
|
192
|
+
|
|
193
|
+
file_descriptor.close()
|
|
194
|
+
|
|
195
|
+
|
|
196
|
+
|
|
197
|
+
client_socket.send(
|
|
198
|
+
|
|
199
|
+
b"Successfully saved file to %s\r\n" % upload_destination)
|
|
200
|
+
|
|
201
|
+
except Exception:
|
|
202
|
+
|
|
203
|
+
client_socket.send(
|
|
204
|
+
|
|
205
|
+
b"Failed saved file to %s\r\n" % upload_destination)
|
|
206
|
+
|
|
207
|
+
|
|
208
|
+
|
|
209
|
+
# コマンドの実行(execute)が指定されたときの動作
|
|
210
|
+
|
|
211
|
+
if len(execute):
|
|
212
|
+
|
|
213
|
+
output = run_command(execute)
|
|
214
|
+
|
|
215
|
+
client_socket.send(output)
|
|
216
|
+
|
|
217
|
+
|
|
218
|
+
|
|
219
|
+
# commandが指定された場合はシェルとして動作する
|
|
220
|
+
|
|
221
|
+
if command:
|
|
222
|
+
|
|
223
|
+
while True:
|
|
224
|
+
|
|
225
|
+
propmt = "<BHP:#> "
|
|
226
|
+
|
|
227
|
+
client_socket.send(propmt.encode())
|
|
228
|
+
|
|
229
|
+
|
|
230
|
+
|
|
231
|
+
cmd_buffer = ""
|
|
232
|
+
|
|
233
|
+
while "\n" not in cmd_buffer:
|
|
234
|
+
|
|
235
|
+
cmd_buffer += client_socket.recv(1024).decode() # サーバ側例外発生箇所
|
|
236
|
+
|
|
237
|
+
response = run_command(cmd_buffer)
|
|
238
|
+
|
|
239
|
+
|
|
240
|
+
|
|
241
|
+
client_socket.send(response)
|
|
242
|
+
|
|
243
|
+
|
|
244
|
+
|
|
245
|
+
|
|
246
|
+
|
|
247
|
+
# 受信用の関数
|
|
248
|
+
|
|
249
|
+
def server_loop():
|
|
250
|
+
|
|
251
|
+
global target
|
|
252
|
+
|
|
253
|
+
global port
|
|
254
|
+
|
|
255
|
+
|
|
256
|
+
|
|
257
|
+
# ターゲットの指定がなければすべてのアクセスを受け付ける
|
|
258
|
+
|
|
259
|
+
if not len(target):
|
|
260
|
+
|
|
261
|
+
target = "0.0.0.0"
|
|
262
|
+
|
|
263
|
+
|
|
264
|
+
|
|
265
|
+
server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
266
|
+
|
|
267
|
+
server.bind((target, port))
|
|
268
|
+
|
|
269
|
+
|
|
270
|
+
|
|
271
|
+
server.listen(5)
|
|
272
|
+
|
|
273
|
+
|
|
274
|
+
|
|
275
|
+
while True:
|
|
276
|
+
|
|
277
|
+
client_socket, addr = server.accept()
|
|
278
|
+
|
|
279
|
+
|
|
280
|
+
|
|
281
|
+
# クライアントの処理を行うスレッドの作成
|
|
282
|
+
|
|
283
|
+
client_thread = threading.Thread(
|
|
284
|
+
|
|
285
|
+
target=client_handler, args=(client_socket,))
|
|
286
|
+
|
|
287
|
+
client_thread.start()
|
|
288
|
+
|
|
289
|
+
|
|
290
|
+
|
|
291
|
+
|
|
292
|
+
|
|
293
|
+
# クライアントとしてデータを送信する関数
|
|
294
|
+
|
|
295
|
+
def client_sender(buffer):
|
|
296
|
+
|
|
297
|
+
|
|
298
|
+
|
|
299
|
+
client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
300
|
+
|
|
301
|
+
|
|
302
|
+
|
|
303
|
+
try:
|
|
304
|
+
|
|
305
|
+
client.connect((target, port))
|
|
306
|
+
|
|
307
|
+
print("connected!")
|
|
308
|
+
|
|
309
|
+
|
|
310
|
+
|
|
311
|
+
if len(buffer):
|
|
312
|
+
|
|
313
|
+
client.send(buffer.encode())
|
|
314
|
+
|
|
315
|
+
|
|
316
|
+
|
|
317
|
+
while True:
|
|
318
|
+
|
|
319
|
+
recv_len = 1
|
|
320
|
+
|
|
321
|
+
response = ""
|
|
322
|
+
|
|
323
|
+
|
|
324
|
+
|
|
325
|
+
while recv_len:
|
|
326
|
+
|
|
327
|
+
# クライアント側例外発生箇所
|
|
328
|
+
|
|
329
|
+
data = client.recv(4096).decode()
|
|
330
|
+
|
|
331
|
+
recv_len = len(data)
|
|
332
|
+
|
|
333
|
+
response += data
|
|
334
|
+
|
|
335
|
+
|
|
336
|
+
|
|
337
|
+
if recv_len < 4096:
|
|
338
|
+
|
|
339
|
+
break
|
|
340
|
+
|
|
341
|
+
|
|
342
|
+
|
|
343
|
+
print(response)
|
|
344
|
+
|
|
345
|
+
|
|
346
|
+
|
|
347
|
+
buffer = input("")
|
|
348
|
+
|
|
349
|
+
buffer += "\n"
|
|
350
|
+
|
|
351
|
+
|
|
352
|
+
|
|
353
|
+
client.send(buffer.encode(encoding="utf-8"))
|
|
354
|
+
|
|
355
|
+
except Exception as e:
|
|
356
|
+
|
|
357
|
+
print(e)
|
|
358
|
+
|
|
359
|
+
print(traceback.format_exc())
|
|
360
|
+
|
|
361
|
+
print("[*] Exception! Exiting.")
|
|
362
|
+
|
|
363
|
+
client.close()
|
|
364
|
+
|
|
365
|
+
|
|
366
|
+
|
|
367
|
+
|
|
368
|
+
|
|
369
|
+
def main():
|
|
370
|
+
|
|
371
|
+
global listen
|
|
372
|
+
|
|
373
|
+
global port
|
|
374
|
+
|
|
375
|
+
global execute
|
|
376
|
+
|
|
377
|
+
global command
|
|
378
|
+
|
|
379
|
+
global upload_destination
|
|
380
|
+
|
|
381
|
+
global target
|
|
382
|
+
|
|
383
|
+
|
|
384
|
+
|
|
385
|
+
if not len(sys.argv[1:]):
|
|
386
|
+
|
|
387
|
+
sys.exit(0)
|
|
388
|
+
|
|
389
|
+
|
|
390
|
+
|
|
391
|
+
try:
|
|
392
|
+
|
|
393
|
+
opts, args = getopt.getopt(
|
|
394
|
+
|
|
395
|
+
sys.argv[1:],
|
|
396
|
+
|
|
397
|
+
"hle:t:p:cu",
|
|
398
|
+
|
|
399
|
+
["help", "listen", "execute=", "target=",
|
|
400
|
+
|
|
401
|
+
"port=", "command", "upload="]
|
|
402
|
+
|
|
403
|
+
)
|
|
404
|
+
|
|
405
|
+
except getopt.GetoptError as err:
|
|
406
|
+
|
|
407
|
+
print(str(err))
|
|
408
|
+
|
|
409
|
+
for o, a in opts:
|
|
410
|
+
|
|
411
|
+
if o in ("-l", "--listen"):
|
|
412
|
+
|
|
413
|
+
listen = True
|
|
414
|
+
|
|
415
|
+
elif o in ("-e", "--execute"):
|
|
416
|
+
|
|
417
|
+
execute = a
|
|
418
|
+
|
|
419
|
+
elif o in ("-c", "--commandshell"):
|
|
420
|
+
|
|
421
|
+
command = True
|
|
422
|
+
|
|
423
|
+
elif o in ("-u", "--upload"):
|
|
424
|
+
|
|
425
|
+
upload_destination = a
|
|
426
|
+
|
|
427
|
+
elif o in ("-t", "--target"):
|
|
428
|
+
|
|
429
|
+
target = a
|
|
430
|
+
|
|
431
|
+
elif o in ("-p", "--port"):
|
|
432
|
+
|
|
433
|
+
port = int(a)
|
|
434
|
+
|
|
435
|
+
else:
|
|
436
|
+
|
|
437
|
+
assert False, "Unhandled Option"
|
|
438
|
+
|
|
439
|
+
|
|
440
|
+
|
|
441
|
+
# クライアントとして動作
|
|
442
|
+
|
|
443
|
+
if not listen and len(target) and port > 0:
|
|
444
|
+
|
|
445
|
+
buffer = sys.stdin.read()
|
|
446
|
+
|
|
447
|
+
client_sender(buffer)
|
|
448
|
+
|
|
449
|
+
|
|
450
|
+
|
|
451
|
+
# サーバとして動作
|
|
452
|
+
|
|
453
|
+
if listen:
|
|
454
|
+
|
|
455
|
+
print("...")
|
|
456
|
+
|
|
457
|
+
server_loop()
|
|
458
|
+
|
|
459
|
+
|
|
460
|
+
|
|
461
|
+
|
|
462
|
+
|
|
463
|
+
main()
|
|
60
464
|
|
|
61
465
|
```
|
|
62
466
|
|
|
63
467
|
|
|
64
468
|
|
|
469
|
+
|
|
470
|
+
|
|
65
471
|
### 試したこと
|
|
66
472
|
|
|
67
473
|
|
|
68
474
|
|
|
69
|
-
例外発生箇所のコードを書き換え、
|
|
70
|
-
|
|
71
|
-
```python
|
|
72
|
-
|
|
73
|
-
client.send(bytes(buffer))
|
|
74
|
-
|
|
75
|
-
```
|
|
76
|
-
|
|
77
|
-
を試しましたが、string argument without an encoding という例外が発生してしまいます。
|
|
78
|
-
|
|
79
|
-
|
|
80
|
-
|
|
81
|
-
|
|
82
|
-
|
|
83
|
-
|
|
475
|
+
プログラムのコードすべてとTraceback全文を追記しました。
|
|
84
|
-
|
|
476
|
+
|
|
85
|
-
よろしくお願いします。
|
|
477
|
+
長くなってしまいますが、よろしくお願いいたします。
|
|
86
478
|
|
|
87
479
|
|
|
88
480
|
|
1
例外メッセージの追加
test
CHANGED
|
File without changes
|
test
CHANGED
|
@@ -52,7 +52,7 @@
|
|
|
52
52
|
|
|
53
53
|
except Exception as e:
|
|
54
54
|
|
|
55
|
-
print(e)
|
|
55
|
+
print(e) # 'utf-8' codec can't decode byte 0x83 in position 1: invalid start byte
|
|
56
56
|
|
|
57
57
|
client.close()
|
|
58
58
|
|