Severe Security Issue with Sharing Permissions and Windows

Question

I recently discovered a severe Security issue with the windows sharing an permission settings:
I have two users, an admin user and a parental controlled user. On my mac mini, i have a external harddrive connected. On the harddrive, i have three folders, Itunes, Iphoto (Package) and a Temp Folder. I want to share the Harddrive RW for the admin, but only R for the parental user. But the Temp folder should be accessible for RW for the parental as well.
1. I set the Drive checkbox "ignore ownership" off.
2. I set the permissions of the drive to admin RW, parental R and Everyone to "no access"
3. I apply to enclosed Items
4. I set the permission of the Temp folder to admin RW, parental RW and Everyone to "no access"
5. I apply to enclosed Items
6. I go to "File Sharing" in the Preferences and activate SMB sharing for both users
7. I delete all previous shares
8. I add the Disk and use the proposed permissions which are admin RW, parental R, Everyone "no access"
9. I add the Temp folder and use the proposed permissions which are admin RW, parental RW, Everyone "no access" - Funny, there is a new Group called "Temp" created which has custom access on both sharepoints
10. I connect to the mac over a Windows machine (NTLM auth set appropriatly). Now I try to create a folder on the root of the Disk share, I get a denied message.
BUT WHEN I GO INTO A SUBFOLDER (eg. ITUNES or IPHOTO), WHICH HAS ALSO JUST "R" PERMISSION FOR THE PARENTAL USER, I AM ABLE TO RW, DELETE AND DO EVERYTHING!!!
TO RECAPITULATE: THE SHARING PERMISSIONS ARE "R", AND THE FILE PERMISSIONS IN THE RESPECTIVE FOLDERS FOR THE RESPECTIVE USER ARE ALSO JUST "R". BUT THE USER CAN DO EVERYTHING IN THE SUBFOLDERS!!!

Answer 1

I recently discovered a severe Security issue with the windows sharing an permission settings:
I have two users, an admin user and a parental controlled user. On my mac mini, i have a external harddrive connected. On the harddrive, i have three folders, Itunes, Iphoto (Package) and a Temp Folder. I want to share the Harddrive RW for the admin, but only R for the parental user. But the Temp folder should be accessible for RW for the parental as well.
1. I set the Drive checkbox "ignore ownership" off.
2. I set the permissions of the drive to admin RW, parental R and Everyone to "no access"
3. I apply to enclosed Items
4. I set the permission of the Temp folder to admin RW, parental RW and Everyone to "no access"
5. I apply to enclosed Items
6. I go to "File Sharing" in the Preferences and activate SMB sharing for both users
7. I delete all previous shares
8. I add the Disk and use the proposed permissions which are admin RW, parental R, Everyone "no access"
9. I add the Temp folder and use the proposed permissions which are admin RW, parental RW, Everyone "no access" - Funny, there is a new Group called "Temp" created which has custom access on both sharepoints
10. I connect to the mac over a Windows machine (NTLM auth set appropriatly). Now I try to create a folder on the root of the Disk share, I get a denied message.
BUT WHEN I GO INTO A SUBFOLDER (eg. ITUNES or IPHOTO), WHICH HAS ALSO JUST "R" PERMISSION FOR THE PARENTAL USER, I AM ABLE TO RW, DELETE AND DO EVERYTHING!!!
TO RECAPITULATE: THE SHARING PERMISSIONS ARE "R", AND THE FILE PERMISSIONS IN THE RESPECTIVE FOLDERS FOR THE RESPECTIVE USER ARE ALSO JUST "R". BUT THE USER CAN DO EVERYTHING IN THE SUBFOLDERS!!!