On Sun, 1 Mar 2009, Paige Thompson wrote:
I would like to know that there is or is not a way to prevent users from
executing binaries that are not owned by root or that the user is in a
particular group. Is this something I can achieve with TrustedBSD's MAC
framework?
Hi Paige--
The ugidfw(8) file system firewall, and mac_bsdextended(4) kernel module it
depends on, can be used to limit what binaries can be executed. However, be
aware that this may not affect memory mapping of shared libraries on platforms
where there are not seperate read/execute bits, such as on i386. You may want
to combine this with the noexec flag, which our runtime linker is aware of and
assists in enforcing for shared libraries.
Robert N M Watson
Computer Laboratory
University of Cambridge
_______________________________________________
[email protected] mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-security
To unsubscribe, send any mail to "[email protected]"
