How to change file permissions on Windows via powershell / cmd?

I want to achieve the permissions aspect equivalent on Windows side via PowerShell or cmd, however I couldn't find a solution in order to correctly do this. If someone could help me to achieve this in the correct way.

[sudo] adduser test
[sudo] gcc vuln.c -o vuln -fno-stack-protector -m32 -z execstack

the part I am getting issues to make it Windows style

[sudo] chown root:test vuln
[sudo] chmod 550 vuln
[sudo] chmod u+s vuln
-r-sr-x--- 1 root test 7392 Dec 22 00:27 vuln

1 Answer

The permission system on Windows is called ACL. To edit the ACL list use

• cacls on Windows prior to Vista

  For example to add Read-Only permission to myfile.txt

  CACLS myfile.txt /E /G "Power Users":R

• icacls on Windows Vista and up

  For example to grant the group FileAdmins 'Delete' and 'Write DAC' permissions to C:\demo\example:

  icacls "C:\demo\example" /grant:r FileAdmins:(D,WDAC)

• Get-Acl and Set-Acl in PowerShell

  For example to copy the ACL from C:\Dog.txt to C:\Cat.txt use this

  Get-Acl -Path "C:\Dog.txt" | Set-Acl -Path "C:\Cat.txt"

To take ownership you'll need to use takeown: takeown /f lostfile. In PowerShell you can use System.Security.AccessControl.FileSecurity.SetOwner

For more information

• What are Windows ACLs?
• How would I use Takeown to take ownership of all folders on one drive?
• PowerShell Change owner of files and folders
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• PowerShell Change owner of files and folders