Scan CAN Bus for Diagnostic Modules - Metasploit


This page contains detailed information about how to use the post/hardware/automotive/identifymodules metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.

Table Of Contents
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Module Overview

Name: Scan CAN Bus for Diagnostic Modules
Module: post/hardware/automotive/identifymodules
Source code: modules/post/hardware/automotive/identifymodules.rb
Disclosure date: -
Last modification time: 2020-09-22 02:56:51 +0000
Supported architecture(s): -
Supported platform(s): Hardware
Target service / protocol: -
Target network port(s): -
List of CVEs: -

Post Module to scan the CAN bus for any modules that can respond to UDS DSC queries

Module Ranking and Traits

Module Ranking:

  • normal: The exploit is otherwise reliable, but depends on a specific version and can't (or doesn't) reliably autodetect. More information about ranking can be found here.

Basic Usage

There are two ways to execute this post module.

From the Meterpreter prompt

The first is by using the "run" command at the Meterpreter prompt. It allows you to run the post module against that specific session:

meterpreter > run post/hardware/automotive/identifymodules

From the msf prompt

The second is by using the "use" command at the msf prompt. You will have to figure out which session ID to set manually. To list all session IDs, you can use the "sessions" command.

msf > use post/hardware/automotive/identifymodules
msf post(identifymodules) > show options
    ... show and set options ...
msf post(identifymodules) > set SESSION session-id
msf post(identifymodules) > exploit

If you wish to run the post against all sessions from framework, here is how:

1 - Create the following resource script:


framework.sessions.each_pair do |sid, session|
  run_single("use post/hardware/automotive/identifymodules")
  run_single("set SESSION #{sid}")
  run_single("run")
end

2 - At the msf prompt, execute the above resource script:

msf > resource path-to-resource-script

Required Options

  • SESSION: The session to run this module on.

Knowledge Base

Scans the CANBUS for devices responding to UDS DSC queries. By trying to set the Diagnostic Session Control (DSC) devices that support UDS will typically respond with an error or an acknowldegment. We use this information to map out modules in a vehicle.

Options

STARTID

The CAN ID to start your scan from.

ENDID

The CAN ID to stop the CAN scan.

CANBUS

The bus to scan. See 'supported_buses' for a list of available buses

Scenarios

A Quick scan of buses from 0x600 to 0x7FF

hwbridge > run post/hardware/automotive/identifymodules CANBUS=can2 STARTID=0x600

Starting scan...
[*] Identified module 7e0
Scanned 504 IDs and found 1 modules that responded
  7e0

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Msfconsole Usage

Here is how the hardware/automotive/identifymodules post exploitation module looks in the msfconsole:

msf6 > use post/hardware/automotive/identifymodules

msf6 post(hardware/automotive/identifymodules) > show info

       Name: Scan CAN Bus for Diagnostic Modules
     Module: post/hardware/automotive/identifymodules
   Platform: Hardware
       Arch: 
       Rank: Normal

Provided by:
  Craig Smith

Compatible session types:
  Hwbridge

Basic options:
  Name     Current Setting  Required  Description
  ----     ---------------  --------  -----------
  CANBUS                    no        CAN Bus to perform scan on, defaults to connected bus
  ENDID    2039             yes       End scan at this ID
  SESSION                   yes       The session to run this module on.
  STARTID  1536             yes       Start scan from this ID

Description:
  Post Module to scan the CAN bus for any modules that can respond to 
  UDS DSC queries

Module Options

This is a complete list of options available in the hardware/automotive/identifymodules post exploitation module:

msf6 post(hardware/automotive/identifymodules) > show options

Module options (post/hardware/automotive/identifymodules):

   Name     Current Setting  Required  Description
   ----     ---------------  --------  -----------
   CANBUS                    no        CAN Bus to perform scan on, defaults to connected bus
   ENDID    2039             yes       End scan at this ID
   SESSION                   yes       The session to run this module on.
   STARTID  1536             yes       Start scan from this ID

Advanced Options

Here is a complete list of advanced options supported by the hardware/automotive/identifymodules post exploitation module:

msf6 post(hardware/automotive/identifymodules) > show advanced

Module advanced options (post/hardware/automotive/identifymodules):

   Name       Current Setting  Required  Description
   ----       ---------------  --------  -----------
   VERBOSE    false            no        Enable detailed status messages
   WORKSPACE                   no        Specify the workspace for this module

Post Actions

This is a list of all post exploitation actions which the hardware/automotive/identifymodules module can do:

msf6 post(hardware/automotive/identifymodules) > show actions

Post actions:

   Name  Description
   ----  -----------

Evasion Options

Here is the full list of possible evasion options supported by the hardware/automotive/identifymodules post exploitation module in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):

msf6 post(hardware/automotive/identifymodules) > show evasion

Module evasion options:

   Name  Current Setting  Required  Description
   ----  ---------------  --------  -----------

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See Also

Check also the following modules related to this module:

Authors

  • Craig Smith

Version

This page has been produced using Metasploit Framework version 6.1.24-dev. For more modules, visit the Metasploit Module Library.

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