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Kevin-Robertson

Tater
github.com/Kevin-Robertson/Tater

Tater is a PowerShell implementation of the Hot Potato Windows Privilege Escalation exploit.

Credit

All credit goes to @breenmachine, @foxglovesec, Google Project Zero, and anyone else
that helped work out the details for this exploit.

Potato - https://github.com/foxglovesec/Potato

Included In

p0wnedShell - https://github.com/Cn33liz/p0wnedShell
PowerShell Empire - https://github.com/PowerShellEmpire/Empire
PS>Attack - https://github.com/jaredhaight/psattack

Functions

Invoke-Tater

The main Tater function.

Parameters

https://github.com/Kevin-Robertson/Tater
https://github.com/foxglovesec/Potato
https://github.com/Cn33liz/p0wnedShell
https://github.com/PowerShellEmpire/Empire
https://github.com/jaredhaight/psattack


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IP - Specify a specific local IP address. An IP address will be selected automatically if
this parameter is not used.
SpooferIP - Specify an IP address for NBNS spoofing. This is needed when using two
hosts to get around an in-use port 80 on the privesc target.
Command - Command to execute as SYSTEM on the localhost. Use PowerShell
character escapes where necessary.
NBNS - Default = Enabled: (Y/N) Enable/Disable NBNS bruteforce spoofing.
NBNSLimit - Default = Enabled: (Y/N) Enable/Disable NBNS bruteforce spoofer
limiting to stop NBNS spoofing while hostname is resolving correctly.
ExhaustUDP - Default = Disabled: (Y/N) Enable/Disable UDP port exhaustion to force
all DNS lookups to fail in order to fallback to NBNS resolution.
HTTPPort - Default = 80: Specify a TCP port for the HTTP listener and redirect
response.
Hostname - Default = WPAD: Hostname to spoof. WPAD.DOMAIN.TLD may be
required by Windows Server 2008.
WPADDirectHosts - Comma separated list of hosts to list as direct in the wpad.dat file.
Note that localhost is always listed as direct.
WPADPort - Default = 80: Specify a proxy server port to be included in the wpad.dat
file.
Trigger - Default = 1: Trigger type to use in order to trigger HTTP to SMB relay. 0 =
None, 1 = Windows Defender Signature Update, 2 = Windows 10 Webclient/Scheduled
Task
TaskDelete - Default = Enabled: (Y/N) Enable/Disable scheduled task deletion for
trigger 2. If enabled, a random string will be added to the taskname to avoid failures
after multiple trigger 2 runs.
Taskname - Default = Tater: Scheduled task name to use with trigger 2. If you observe
that Tater does not work after multiple trigger 2 runs, try changing the taskname.
RunTime - Default = Unlimited: (Integer) Set the run time duration in minutes.
ConsoleOutput - Default = Disabled: (Y/N) Enable/Disable real time console output. If
using this option through a shell, test to ensure that it doesn't hang the shell.
StatusOutput - Default = Enabled: (Y/N) Enable/Disable startup messages.
ShowHelp - Default = Enabled: (Y/N) Enable/Disable the help messages at startup.
Tool - Default = 0: (0,1,2) Enable/Disable features for better operation through external
tools such as Metasploit's Interactive Powershell Sessions and Empire. 0 = None, 1 =
Metasploit, 2 = Empire

Stop-Tater

Function to manually stop Invoke-Tater.

Usage



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To import with Import-Module:
Import-Module ./Tater.ps1

To import using dot source method:
. ./Tater.ps1

Examples

Basic trigger 1 example
 Invoke-Tater -Trigger 1 -Command "net user tater Winter2016 /add && net localgroup

administrators tater /add"

Basic trigger 2 example
 Invoke-Tater -Trigger 2 -Command "net user tater Winter2016 /add && net localgroup

administrators tater /add"

Two system setup to get around port 80 being in-use on the privesc target
 WPAD System - 192.168.10.100 - this system will just serve up a wpad.dat file that will

direct HTTP traffic on the privesc target to the non-80 HTTP port
 Invoke-Tater -Trigger 0 -NBNS N -WPADPort 8080 -Command "null"

Privesc Target - 192.168.10.101
 Invoke-Tater -Command "net user Tater Winter2016 /add && net localgroup

administrators Tater /add" -HTTPPort 8080 -SpooferIP 192.168.10.100

Screenshots



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Windows 7 using trigger 1 (NBNS WPAD Bruteforce + Windows Defender Signature
Updates) 

https://cloud.githubusercontent.com/assets/5897462/12707930/d005af7c-c867-11e5-916d-20a015ed30ec.PNG


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Windows 10 using trigger 2 (WebClient Service + Scheduled Task) 

https://cloud.githubusercontent.com/assets/5897462/12707953/1f77c48c-c868-11e5-8ea3-5e0e26cd3bdd.PNG


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Windows 7 using trigger 1 and UDP port exhaustion 

https://cloud.githubusercontent.com/assets/5897462/12708234/673e3794-c86b-11e5-8cc0-398b7170b73f.PNG