使用 Python 将 ssh 客户端与 Paramiko 连接到 dell idrac 失败键盘交互身份验证

Question

所以戴尔在他们的新 iDRAC 固件中改变了一些东西，他们在你登录后需要键盘交互式身份验证，我不能再使用 Paramiko 登录。

https://www.dell.com/community/Systems-Management-General/iDRAC8-2-70-70-70-SSH-keyboard-interactive-authentication/td-p/7427565

有人在论坛上发布了一个代码片段来修补 Paramiko client.py 我在连接函数中添加了以下内容

if password is not None:
            try:
                self._transport.auth_password(username, password)
                return
                self._log(DEBUG, "trying password")
                allowed_types = self._transport.auth_password(username, password)
                if not allowed_types:
                    return
            except SSHException as e:
                saved_exception = e
elif two_factor:
            if 'keyboard-interactive' in allowed_types:
                try:
                    self._log(DEBUG, "trying interactive")
                    self._transport.auth_interactive_dumb(username)
                    return
                except SSHException as e:
                    saved_exception = e

但还是出现同样的错误。这是我正在使用的ssh连接功能。

def connectSSH(my_file, user_name, password):
    ssh = paramiko.SSHClient()
    ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    ip = str(my_file.split(',')[0]).strip()
    try:
        ssh.connect(ip, 22, user_name, password, look_for_keys=False)
        return ssh
    except:
        with open(f'{ip}.txt', 'a') as f:
            f.writelines(ip + '\t COULDN\'T CONNECT\n')

当我运行它处于空闲状态时它连接但说正在等待身份验证

ssh.get_transport()

这是我得到的回溯

Traceback (most recent call last):
  File "<pyshell#16>", line 1, in <module>
    stdin, stdout, stderr = ssh.exec_command('racadm getsysinfo')
  File "C:\Users\kevinc\AppData\Local\Programs\Python\Python38-32\lib\site-packages\paramiko\client.py", line 508, in exec_command
    chan = self._transport.open_session(timeout=timeout)
  File "C:\Users\kevinc\AppData\Local\Programs\Python\Python38-32\lib\site-packages\paramiko\transport.py", line 875, in open_session
    return self.open_channel(
  File "C:\Users\kevinc\AppData\Local\Programs\Python\Python38-32\lib\site-packages\paramiko\transport.py", line 1006, in open_channel
    raise e
  File "C:\Users\kevinc\AppData\Local\Programs\Python\Python38-32\lib\site-packages\paramiko\transport.py", line 2055, in run
    ptype, m = self.packetizer.read_message()
  File "C:\Users\kevinc\AppData\Local\Programs\Python\Python38-32\lib\site-packages\paramiko\packet.py", line 459, in read_message
    header = self.read_all(self.__block_size_in, check_rekey=True)
  File "C:\Users\kevinc\AppData\Local\Programs\Python\Python38-32\lib\site-packages\paramiko\packet.py", line 303, in read_all
    raise EOFError()
EOFError

感谢任何帮助

谢谢

Answer 1

nvm 我发现它不知道有一种方法可以将虚假条目发送到连接而无需编辑 client.py 文件

如果有人需要，这是我的连接方法 **编辑注意到如果它是旧版本并且不需要进一步的身份验证它会失败所以我检查

def connectSSH(my_file, user_name, password):
    ip = str(my_file.split(',')[0]).strip()
    ssh = paramiko.SSHClient()
    ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    try:
        ssh.connect(ip, 22, user_name, password)
        key_auth = str(ssh.get_transport())
        if 'awaiting auth' in key_auth:
            (ssh.get_transport()).auth_interactive_dumb(user_name)
        return ssh
    except:
        with open(f'{ip}.txt', 'a') as f:
            f.writelines(ip + '\t COULDN\'T CONNECT\n')

Answer 2

我有一个类似的问题：Python 使用 Paramiko 尝试登录 Dell iDRAC 的代码停止使用简单的 username/password 身份验证。我是运行我的 Python/Paramiko --> 针对 iDRAC 控制器版本 9 的 iDRAC 代码，发现现在需要 keyboard-interactive 身份验证。

下面的代码类似于原始发布者的代码，显示了使用 username/password 身份验证登录 iDRAC 9 控制器的工作示例：

import paramiko
import logging

logging.basicConfig(level=logging.DEBUG)
logger = logging.getLogger('ssh_test_app')
logging.getLogger("paramiko").setLevel(logging.DEBUG)

host = '10.255.1.2'
password = 'mypw'
username = 'myuser'
port = 22

client = paramiko.SSHClient()

client.load_system_host_keys()
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())

retval = 0

cmd = 'racadm getsysinfo'

try:
    client.connect(host, port=port, username=username, password=password, allow_agent=False, look_for_keys=False)
    transport = client.get_transport()

    if not transport.is_authenticated():
        transport.auth_interactive_dumb(username)

    if transport.is_authenticated():
        logger.info('transport is authenticated')
        _stdin, stdout, stderr = client.exec_command(cmd)
        res = stdout.read()
        logger.info('Command {0}:\n{1}'.format(cmd, res))
    else:
        logger.error('transport is not authenticated')

except paramiko.AuthenticationException:
    logger.error('paramiko.AuthenticationException')
    retval = 1

except paramiko.BadHostKeyException:
    logger.error('paramiko.BadHostKeyException')
    retval = 1

except paramiko.SSHException:
    logger.error('paramiko.SSHException')
    retval = 1

finally:
    transport.close()

logger.info('Exiting at end of script: exit code {0}'.format(retval))

exit(retval)

Answer 3

我们对其进行了修改，它适用于新旧戴尔固件

`
   from paramiko import SSHClient, WarningPolicy
   def sshConnect(hostname, username, password):
       client = SSHClient()
       client.set_missing_host_key_policy(WarningPolicy())
       client.connect(hostname=hostname, username=username, password=password)
       transport = client.get_transport()
       status = transport.is_authenticated()
       if not status:
           client.get_transport()).auth_interactive_dumb(username)
        stdin, stdout, stderr = client.exec_command("racadm getsysinfo")
        res = stdout.read()
        return res
`

使用 Python 将 ssh 客户端与 Paramiko 连接到 dell idrac 失败键盘交互身份验证

Connecting ssh client with Paramiko using Python to dell idrac fails keyboard-interactive authentication

python

ssh

paramiko