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Microsoft Windows SMB Direct Session Takeover

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Microsoft Windows SMB Direct Session Takeover

Disclosed
02/16/2021
Created
01/07/2022

Description

This module will intercept direct SMB authentication requests to another host, gaining access to an authenticated SMB session if successful. If the connecting user is an administrator and network logins are allowed to the target machine, this module will execute an arbitrary payload. To exploit this, the target system must try to autheticate to another host on the local area network. SMB Direct Session takeover is a combination of previous attacks. This module is dependent on an external ARP spoofer. The builtin ARP spoofer was not providing sufficient host discovery. Bettercap v1.6.2 was used during the development of this module. The original SMB relay attack was first reported by Sir Dystic on March 31st, 2001 at @lanta.con in Atlanta, Georgia.

Author(s)

  • usiegl00

Platform

Windows

Architectures

x86, x64

Development

Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':

msf > use exploit/windows/smb/smb_shadow
msf exploit(smb_shadow) > show targets
    ...targets...
msf exploit(smb_shadow) > set TARGET < target-id >
msf exploit(smb_shadow) > show options
    ...show and set options...
msf exploit(smb_shadow) > exploit

Time is precious, so I don’t want to do something manually that I can automate. Leveraging the Metasploit Framework when automating any task keeps us from having to re-create the wheel as we can use the existing libraries and focus our efforts where it matters.

– Jim O’Gorman | President, Offensive Security

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