<div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="Ih2E3d"><br>
</div>Have fun pointing out the whole reliance on SUDO and other many<br>
mechanisms. Shoe-horning in another program named that with a<br>
possibility to replace the Binary regardless of it being the right one.<br>
and doing its bad work.<br>
<br>
At least with the proper groups and proper right assigned to them, you;d<br>
get MUCH less collateral damage.<br>
<br>
Don't forget that, SUID/GUID programs have their place, this may just be<br>
one of them.<br>
<br>
Come on, there are always two sides to this stuff. There are other<br>
alternatives as well.</blockquote><div> </div></div>:-) As much as I dislike SUDO at least you have more control and logging over what the user does. At least you get to decide WHO gets to execute wpa_gui as root. With SUID you have nothing, everyone IS root for that app for all practical purposes. SUID needs to go away. I think on my servers I wittle it down to about 9 SUID/SGID binaries left. When I get SELinux policy modules created for them they'll be gone.<br>
<br>I realize that only one major disto and it's community variant uses SELinux so that's not a solution for everyone. I don't know enough about AppArmor to know if it could provide an SUID like Domain Transition decision policy. <br>
<br>If an SELinux policy was created for wpa_gui that had a wpa_gui_exec_t domain and a wpa_gui_t domain that would have permissions to the relevant network interfaces and sockets all you'd need is an allow policy to allow wpa_gui_exec_t to transit to wpa_gui_t and allow unconfined_t execute permissions. The whole thing could be constrained so that if it were exploited it could only be used to edit wpa settings and nothing more. I don't know that much about wpa_gui but if it reads files then it could be forced to read files that it shouldn't and if it's SUID those files could be ANY.<br>
<br>I'm sure this functionality is also in AppArmor so it would work in Mandrake, Ubuntu, Sun Linux, and SuSE. I don't use most of those so I'm just guessing.<br><br>Grant<br><br><br><br>