From: Chris PeBenito <pebenito@ieee.org>
To: "Sugar, David" <dsugar@tresys.com>,
"selinux-refpolicy@vger.kernel.org"
<selinux-refpolicy@vger.kernel.org>
Subject: Re: [PATCH 2/2 v2] Modify type for /etc/hostname
Date: Wed, 16 Jan 2019 18:13:56 -0500 [thread overview]
Message-ID: <1c340a9f-036e-cd58-262b-8fe14a9a56c0@ieee.org> (raw)
In-Reply-To: <20190115032018.28662-4-dsugar@tresys.com>
On 1/14/19 10:20 PM, Sugar, David wrote:
> hostnamectl updates /etc/hostname
> This change is setting the type for the file /etc/hostname to
> net_conf_t and granting hostnamectl permission to edit this file.
> Note that hostnamectl is initially creating a new file .#hostname*
> which is why the create permissions are requied.
>
> type=AVC msg=audit(1547039052.041:563): avc: denied { write } for pid=7564 comm="systemd-hostnam" name="etc" dev="dm-1" ino=101 scontext=system_u:system_r:systemd_hostnamed_t:s0 tcontext=system_u:object_r:etc_t:s0 tclass=dir permissive=1
> type=AVC msg=audit(1547039052.041:563): avc: denied { add_name } for pid=7564 comm="systemd-hostnam" name=".#hostnamezyqZ9t" scontext=system_u:system_r:systemd_hostnamed_t:s0 tcontext=system_u:object_r:etc_t:s0 tclass=dir permissive=1
> type=AVC msg=audit(1547039052.041:563): avc: denied { create } for pid=7564 comm="systemd-hostnam" name=".#hostnamezyqZ9t" scontext=system_u:system_r:systemd_hostnamed_t:s0 tcontext=system_u:object_r:etc_t:s0 tclass=file permissive=1
> type=AVC msg=audit(1547039052.041:563): avc: denied { write } for pid=7564 comm="systemd-hostnam" path="/etc/.#hostnamezyqZ9t" dev="dm-1" ino=1094726 scontext=system_u:system_r:systemd_hostnamed_t:s0 tcontext=system_u:object_r:etc_t:s0 tclass=file permissive=1
> type=SYSCALL msg=audit(1547039052.041:563): arch=c000003e syscall=2 success=yes exit=8 a0=560d0bba34b0 a1=800c2 a2=180 a3=5c35f14c items=2 ppid=1 pid=7564 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="systemd-hostnam" exe="/usr/lib/systemd/systemd-hostnamed" subj=system_u:system_r:systemd_hostnamed_t:s0 key=(null)
> type=AVC msg=audit(1547039052.041:564): avc: denied { setattr } for pid=7564 comm="systemd-hostnam" name=".#hostnamezyqZ9t" dev="dm-1" ino=1094726 scontext=system_u:system_r:systemd_hostnamed_t:s0 tcontext=system_u:object_r:etc_t:s0 tclass=file permissive=1
> type=SYSCALL msg=audit(1547039052.041:564): arch=c000003e syscall=91 success=yes exit=0 a0=8 a1=1a4 a2=fbad2484 a3=24 items=1 ppid=1 pid=7564 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="systemd-hostnam" exe="/usr/lib/systemd/systemd-hostnamed" subj=system_u:system_r:systemd_hostnamed_t:s0 key=(null)
> type=AVC msg=audit(1547039052.041:565): avc: denied { remove_name } for pid=7564 comm="systemd-hostnam" name=".#hostnamezyqZ9t" dev="dm-1" ino=1094726 scontext=system_u:system_r:systemd_hostnamed_t:s0 tcontext=system_u:object_r:etc_t:s0 tclass=dir permissive=1
> type=AVC msg=audit(1547039052.041:565): avc: denied { rename } for pid=7564 comm="systemd-hostnam" name=".#hostnamezyqZ9t" dev="dm-1" ino=1094726 scontext=system_u:system_r:systemd_hostnamed_t:s0 tcontext=system_u:object_r:etc_t:s0 tclass=file permissive=1
> type=AVC msg=audit(1547039052.041:565): avc: denied { unlink } for pid=7564 comm="systemd-hostnam" name="hostname" dev="dm-1" ino=1094712 scontext=system_u:system_r:systemd_hostnamed_t:s0 tcontext=system_u:object_r:etc_t:s0 tclass=file permissive=1
>
> Signed-off-by: Dave Sugar <dsugar@tresys.com>
> ---
> policy/modules/system/sysnetwork.fc | 1 +
> policy/modules/system/systemd.te | 3 +++
> 2 files changed, 4 insertions(+)
>
> diff --git a/policy/modules/system/sysnetwork.fc b/policy/modules/system/sysnetwork.fc
> index cd528938..1e5432a4 100644
> --- a/policy/modules/system/sysnetwork.fc
> +++ b/policy/modules/system/sysnetwork.fc
> @@ -18,6 +18,7 @@ ifdef(`distro_debian',`
> /etc/hosts -- gen_context(system_u:object_r:net_conf_t,s0)
> /etc/hosts\.allow.* -- gen_context(system_u:object_r:net_conf_t,s0)
> /etc/hosts\.deny.* -- gen_context(system_u:object_r:net_conf_t,s0)
> +/etc/hostname -- gen_context(system_u:object_r:net_conf_t,s0)
> /etc/denyhosts.* -- gen_context(system_u:object_r:net_conf_t,s0)
> /etc/resolv\.conf.* -- gen_context(system_u:object_r:net_conf_t,s0)
> /etc/yp\.conf.* -- gen_context(system_u:object_r:net_conf_t,s0)
> diff --git a/policy/modules/system/systemd.te b/policy/modules/system/systemd.te
> index abcc52f5..75ee4310 100644
> --- a/policy/modules/system/systemd.te
> +++ b/policy/modules/system/systemd.te
> @@ -325,6 +325,9 @@ files_read_etc_files(systemd_hostnamed_t)
>
> seutil_read_file_contexts(systemd_hostnamed_t)
>
> +sysnet_etc_filetrans_config(systemd_hostnamed_t)
> +sysnet_manage_config(systemd_hostnamed_t)
> +
> systemd_log_parse_environment(systemd_hostnamed_t)
>
> optional_policy(`
Merged.
--
Chris PeBenito
next prev parent reply other threads:[~2019-01-16 23:19 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-15 3:20 [PATCH] Interface to read and write the mount_runtime_t directory Sugar, David
2019-01-15 3:20 ` [PATCH 1/2] Interface with systemd_hostnamed over dbus to set hostname Sugar, David
2019-01-16 23:12 ` Chris PeBenito
2019-01-15 3:20 ` [PATCH 2/2 v2] Modify type for /etc/hostname Sugar, David
2019-01-16 23:13 ` Chris PeBenito [this message]
2019-01-15 3:20 ` [PATCH] label journald configuraiton files syslog_conf_t Sugar, David
2019-01-16 23:12 ` Chris PeBenito
2019-01-16 23:06 ` [PATCH] Interface to read and write the mount_runtime_t directory Chris PeBenito
2019-01-22 14:47 ` Sugar, David
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