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Microsoft Exchange Server ChainedSerializationBinder RCE

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Microsoft Exchange Server ChainedSerializationBinder RCE

Disclosed
12/09/2021
Created
08/29/2022

Description

This module exploits vulnerabilities within the ChainedSerializationBinder as used in Exchange Server 2019 CU10, Exchange Server 2019 CU11, Exchange Server 2016 CU21, and Exchange Server 2016 CU22 all prior to Mar22SU. Note that authentication is required to exploit these vulnerabilities.

Author(s)

  • pwnforsp
  • zcgonvh
  • Microsoft Threat Intelligence Center
  • Microsoft Security Response Center
  • peterjson
  • testanull
  • Grant Willcox
  • Spencer McIntyre
  • Markus Wulftange

Platform

Windows

Architectures

cmd, 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/http/exchange_chainedserializationbinder_rce
msf exploit(exchange_chainedserializationbinder_rce) > show targets
    ...targets...
msf exploit(exchange_chainedserializationbinder_rce) > set TARGET < target-id >
msf exploit(exchange_chainedserializationbinder_rce) > show options
    ...show and set options...
msf exploit(exchange_chainedserializationbinder_rce) > 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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