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PowerShellEmpire Arbitrary File Upload (Skywalker)

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PowerShellEmpire Arbitrary File Upload (Skywalker)

Disclosed
10/15/2016
Created
05/30/2018

Description

A vulnerability existed in the PowerShellEmpire server prior to commit f030cf62 which would allow an arbitrary file to be written to an attacker controlled location with the permissions of the Empire server. This exploit will write the payload to /tmp/ directory followed by a cron.d file to execute the payload.

Author(s)

  • Spencer McIntyre
  • Erik Daguerre

Platform

Linux,Python

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