linux-kernel - Re: [RFC] Capabilities still can't be inherited by normal programs

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Date:	Wed, 12 Dec 2012 10:29:17 -0800
From:	Andy Lutomirski <luto@...capital.net>
To:	"Andrew G. Morgan" <morgan@...nel.org>
Cc:	"Serge E. Hallyn" <serge@...lyn.com>,
	Casey Schaufler <casey@...aufler-ca.com>,
	Serge Hallyn <serge.hallyn@...onical.com>,
	linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org,
	Kees Cook <keescook@...omium.org>,
	James Morris <james.l.morris@...cle.com>,
	Eric Paris <eparis@...hat.com>,
	"Serge E. Hallyn" <serge@...onical.com>,
	Markku Savela <msa@...h.iki.fi>
Subject: Re: [RFC] Capabilities still can't be inherited by normal programs

On Sat, Dec 8, 2012 at 3:57 PM, Andy Lutomirski <luto@...capital.net> wrote:
>
> I just tried to search to find actual uses of pI/fI.  Here's what I found:

I downloaded all the Fedora spec files and searched for file
capabilities.  Assuming I didn't mess up, here's what I found:

fping.spec:%attr(0755,root,root) %caps(cap_net_raw=ep) %{_sbindir}/fping
fping.spec:%attr(0755,root,root) %caps(cap_net_raw=ep) %{_sbindir}/fping6
glibc.spec:%attr(755,root,root) %caps(cap_chown,cap_fowner=pe)
%{_prefix}/libexec/pt_chown
gnome-keyring.spec:%attr(0755,root,root) %caps(cap_ipc_lock=ep)
%{_bindir}/gnome-keyring-daemon
httpd.spec:%caps(cap_setuid,cap_setgid+pe)
%attr(510,root,%{suexec_caller}) %{_sbindir}/suexec
iputils.spec:%attr(0755,root,root) %caps(cap_net_raw=ep) %{_sbindir}/clockdiff
iputils.spec:%attr(0755,root,root) %caps(cap_net_raw=ep) %{_sbindir}/arping
iputils.spec:%attr(0755,root,root) %caps(cap_net_raw=ep
cap_net_admin=ep) %{_bindir}/ping
iputils.spec:%attr(0755,root,root) %caps(cap_net_raw=ep
cap_net_admin=ep) %{_bindir}/ping6
mtr.spec:%attr(0755,root,root) %caps(cap_net_raw=pe) %{_sbindir}/mtr
policycoreutils.spec:%caps(cap_setpcap,cap_setuid,cap_fowner,cap_dac_override,cap_sys_admin,cap_sys_nice=pe)
%{_sbindir}/seunshare
policycoreutils.spec:%attr(0755,root,root)
%caps(cap_setpcap,cap_audit_write,cap_sys_admin,cap_fowner,cap_chown,cap_dac_override=pe)
%{_bindir}/newrole
rpm.spec:- fix double-free on %caps in spec (#877512)
rsh.spec:%attr(0755,root,root)  %caps(cap_net_bind_service=pe) %{_bindir}/rcp
rsh.spec:%attr(0755,root,root)  %caps(cap_net_bind_service=pe) %{_bindir}/rlogin
rsh.spec:%attr(0755,root,root)  %caps(cap_net_bind_service=pe) %{_bindir}/rsh
systemd.spec:%caps(cap_dac_override,cap_sys_ptrace=pe)
%{_bindir}/systemd-detect-virt
wireshark.spec:%attr(0750, root, wireshark)
%caps(cap_net_raw,cap_net_admin=eip) %{_sbindir}/dumpcap
xorg-x11-server.spec:%global Xorgperms %attr(0711,root,root)
%caps(cap_sys_admin,cap_sys_rawio,cap_dac_override=pe)

The only inheritable bit is on dumpcap, and it's not necessary there.

--Andy
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