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SQL Server Reporting Services (SSRS) ViewState Deserialization

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SQL Server Reporting Services (SSRS) ViewState Deserialization

Disclosed
02/11/2020
Created
03/12/2020

Description

A vulnerability exists within Microsoft's SQL Server Reporting Services which can allow an attacker to craft an HTTP POST request with a serialized object to achieve remote code execution. The vulnerability is due to the fact that the serialized blob is not signed by the server.

Author(s)

  • Soroush Dalili
  • Spencer McIntyre

Platform

Windows

Development

References

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/ssrs_navcorrector_viewstate
msf exploit(ssrs_navcorrector_viewstate) > show targets
    ...targets...
msf exploit(ssrs_navcorrector_viewstate) > set TARGET < target-id >
msf exploit(ssrs_navcorrector_viewstate) > show options
    ...show and set options...
msf exploit(ssrs_navcorrector_viewstate) > exploit

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– Jim O’Gorman | President, Offensive Security

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