sshmitm.apps.mosh module

class sshmitm.apps.mosh.UdpProxy(key: str, target_ip: str, target_port: int, listen_ip: str = '', listen_port: int = 0, buf_size: int = 1024)

Bases: object

UdpProxy is a class to act as a proxy server for MOSH (Mobile shell) protocol

This class provides the functionality of a proxy server for the MOSH protocol. MOSH is a protocol for mobile shell sessions, which helps maintain shell sessions when network connection is disrupted.

Parameters:

  • key (str) – Base64 encoded key to be used for decryption of incoming messages

  • target_ip (str) – IP of target server

  • target_port (int) – Port number of target server

  • listen_ip (str) – IP to bind the proxy server (default ‘’)

  • listen_port (int) – Port number to bind the proxy server (default 0)

  • buf_size (int) – buffer size for incoming data (default 1024)

check_pairing(addr: Tuple[str, int]) → Tuple[str, int]

Get the destination address to forward incoming messages to.

Parameters:

addr (Tuple[str, int]) – Address of incoming message

Returns:

Destination address

Return type:

Tuple[str, int]

static format_hex(data: bytes, hexwidth: int = 19) → str

Format the data in hexadecimal format.

Parameters:

  • data (bytes) – Data to be formatted

  • hexwidth (int) – Width of hexadecimal data (default 19)

Returns:

Formatted hexadecimal data

Return type:

str

get_bind_port() → int

Get the port number that the proxy server is bound to.

Returns:

Port number

Return type:

int

receive(buff_size: int) → None

Receive incoming messages, decrypt and log the data, and forward it to the target server.

Parameters:

buff_size (int) – buffer size for incoming data

Returns:

None

start() → None

Start the proxy server.

Returns:

None

thread_receive() → None

Start a separate thread to receive incoming messages.

Returns:

None

sshmitm.apps.mosh.handle_mosh(session: Session, traffic: bytes, isclient: bool) → bytes

Handle encrypted traffic from Mosh, a mobile shell that serves as a replacement for ssh.

Parameters:

  • session (Session) – A Session object representing the Mosh connection.

  • traffic (bytes) – Encrypted traffic from Mosh.

  • isclient (bool) – A boolean value indicating whether the current session is a client session.

Returns:

The processed traffic.

Return type:

bytes