Il 19/Ago/2014 17:10 "Tomas Hozza" <thozza@xxxxxxxxxx> ha scritto:
>
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> Hello.
>
> ISC is working on new BIND 9.10 release which includes the seccomp
> functionality. It can be turned on by configuring BIND before build with
> "--enable-seccomp".
>
> ISC asked me to kindly ask Fedora community if they would be willing to
> test it. Currently I'm working on rebasing BIND to 9.10 in rawhide.
> However it is still not finished. Since DHCP (including dhclient)
> depends on BIND libraries I'm not able to easily provide a testing RPMs
> that would be installable.
>
> In the future I would like to turn the feature on by default.
>
> So if you are willing to test the feature, you can download latest BIND
> 9.10.1b2 on http://www.isc.org/downloads/
>
> Configure it with "--enable-seccomp" and you're good to go.
>
> You can send your feedback to bind-beta-response@xxxxxxxxxxxxx,
> bind-users@xxxxxxxxxxxxx or bind-bugs@xxxxxxx
>
> Some words about the feature from the contributor:
> "It goes further than a chroot. chroot limits an attacker to a
> filesystem. it doesn't prevent the attacker from running his "exploit"
> aka nefarious code and making socket connections over the internet that
> would give him some kind of backdoor access where he can remotely
> execute his code.
>
> That's where seccomp kicks in, it acts as a 2nd wall of defence. In case
> of a security hole being present in the server process, it goes further
> than a chroot, it prevents the attacker from making socket connections
> orexecuting his code, as his "playing field" is significantly reduced.
> There's very little he can do.”
Are there some duplication of security feature that some mac system offer as selinux, in first place ? Sure someone can Tell that selinux could be disabled by the lazy sysadmin.
Thanks
Best regards
>
> Thank you.
>
> Regards,
> - --
> Tomas Hozza
> Software Engineer - EMEA ENG Developer Experience
>
> PGP: 1D9F3C2D
> Red Hat Inc. http://cz.redhat.com
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