Thursday, November 27, 2008

Reading Security Permissions for a User Account

Returns security permissions for the MyerKen Active Directory user account.

Const SE_DACL_PROTECTED = &H1000 
 
Set objUser = GetObject _
    ("LDAP://cn=MyerKen,ou=Management,dc=NA,dc=fabrikam,dc=com")
 
Set objNtSecurityDescriptor = objUser.Get("ntSecurityDescriptor")
 
intNtSecurityDescriptorControl = objNtSecurityDescriptor.Control
 
WScript.Echo "Permissions Tab"
WScript.StdOut.WriteLine "Allow inheritable permissions from the parent to"
WScript.StdOut.Write "propogate to this object and all child objects "
If (intNtSecurityDescriptorControl And SE_DACL_PROTECTED) Then
    Wscript.Echo "is disabled."
Else
    WScript.Echo "is enabled."
End If
WScript.Echo VbCr
 
Set objDiscretionaryAcl = objNtSecurityDescriptor.DiscretionaryAcl
DisplayAceInformation objDiscretionaryAcl, "DACL"
 
Sub DisplayAceInformation(SecurityStructure, strType)
    Const ADS_ACETYPE_ACCESS_ALLOWED = &H0 
    Const ADS_ACETYPE_ACCESS_DENIED = &H1 
    Const ADS_ACETYPE_ACCESS_ALLOWED_OBJECT = &H5 
    Const ADS_ACETYPE_ACCESS_DENIED_OBJECT = &H6 
    intAceCount = 0
    For Each objAce In SecurityStructure
        strTrustee = Mid(objAce.Trustee,1,12)
        If StrComp(strTrustee, "NT AUTHORITY", 1) <> 0 Then
            intAceCount = intAceCount + 1
            WScript.Echo strType & " permission entry: " & intAceCount
            WScript.Echo "Name: " & objAce.Trustee
 
            intAceType = objAce.AceType
            If (intAceType = ADS_ACETYPE_ACCESS_ALLOWED Or _
                intAceType = ADS_ACETYPE_ACCESS_ALLOWED_OBJECT) Then
                WScript.Echo "Type: Allow Access"
            ElseIf (intAceType = ADS_ACETYPE_ACCESS_DENIED Or _
                intAceType = ADS_ACETYPE_ACCESS_DENIED_OBJECT) Then
                WScript.StdOut.Write "Type: Deny Acess"
            Else
                WScript.Echo "Acess Type Unknown."
            End If
            ReadBitsInAccessMask(objAce.AccessMask)
            WScript.Echo VbCr
        End If
    Next
End Sub
 
Sub ReadBitsInAccessMask(AccessMask)
    Const ADS_RIGHT_DELETE = &H10000
    Const ADS_RIGHT_READ_CONTROL = &H20000
    Const ADS_RIGHT_WRITE_DAC = &H40000
    Const ADS_RIGHT_WRITE_OWNER = &H80000
    Const ADS_RIGHT_DS_CREATE_CHILD = &H1
    Const ADS_RIGHT_DS_DELETE_CHILD = &H2
    Const ADS_RIGHT_ACTRL_DS_LIST = &H4
    Const ADS_RIGHT_DS_SELF = &H8
    Const ADS_RIGHT_DS_READ_PROP = &H10
    Const ADS_RIGHT_DS_WRITE_PROP = &H20
    Const ADS_RIGHT_DS_DELETE_TREE = &H40
    Const ADS_RIGHT_DS_LIST_OBJECT = &H80
    Const ADS_RIGHT_DS_CONTROL_ACCESS = &H100
 
    WScript.Echo VbCrLf & "Standard Access Rights"
    If (AccessMask And ADS_RIGHT_DELETE) Then _
        WScript.Echo vbTab & "-Delete an object."
    If (AccessMask And ADS_RIGHT_READ_CONTROL) Then _
        WScript.Echo vbTab & "-Read permissions."
    If (AccessMask And ADS_RIGHT_WRITE_DAC) Then _
        WScript.Echo vbTab & "-Write permissions."
    If (AccessMask And ADS_RIGHT_WRITE_OWNER) Then _
        WScript.Echo vbTab & "-Modify owner."
  
    WScript.Echo VbCrLf & "Directory Service Specific Access Rights"
    If (AccessMask And ADS_RIGHT_DS_CREATE_CHILD) Then _
        WScript.Echo vbTab & "-Create child objects."
    If (AccessMask And ADS_RIGHT_DS_DELETE_CHILD) Then _
        WScript.Echo vbTab & "-Delete child objects."
    If (AccessMask And ADS_RIGHT_ACTRL_DS_LIST) Then _
        WScript.Echo vbTab & "-Enumerate an object."
    If (AccessMask And ADS_RIGHT_DS_READ_PROP) Then _
        WScript.Echo vbTab & "-Read the properties of an object."
    If (AccessMask And ADS_RIGHT_DS_WRITE_PROP) Then _
        WScript.Echo vbTab & "-Write the properties of an object."
    If (AccessMask And ADS_RIGHT_DS_DELETE_TREE) Then _
        WScript.Echo vbTab & "-Delete a tree of objects"
    If (AccessMask And ADS_RIGHT_DS_LIST_OBJECT) Then _
        WScript.Echo vbTab & "-List a tree of objects."
 
    WScript.Echo VbCrLf & "Control Access Rights"
    If (AccessMask And ADS_RIGHT_DS_CONTROL_ACCESS) + _
        (AccessMask And ADS_RIGHT_DS_SELF) = 0 Then
            WScript.Echo "-None"
    Else 
        If (AccessMask And ADS_RIGHT_DS_CONTROL_ACCESS) Then _
            WScript.Echo vbTab & "-Extended access rights."
        If (AccessMask And ADS_RIGHT_DS_SELF) Then
            WScript.Echo vbTab & _
                "-Active Directory must validate a property "
            WScript.Echo vbTab & _
                " write operation beyond the schema definition "
            WScript.Echo vbTab & " for the attribute."
        End If
    End If
End Sub

This is a VB Script, this can be used by saving the file in .vbs file
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