[gentoo-commits] proj/hardened-refpolicy:master commit in: policy/modules/admin/

[Jason Zaman]

commit:     79c6971616012abf80e22b1678be2826a2860b42
Author:     Nicolas Iooss <nicolas.iooss <AT> m4x <DOT> org>
AuthorDate: Wed Jan 15 21:01:08 2020 +0000
Commit:     Jason Zaman <perfinion <AT> gentoo <DOT> org>
CommitDate: Sat Feb 15 07:32:05 2020 +0000
URL:        
https://gitweb.gentoo.org/proj/hardened-refpolicy.git/commit/?id=79c69716

usermanage: allow groupadd to lookup dynamic users from systemd

On a Debian 10 test virtual machine, when installing packages adds a
group, the following AVC occurs:

    type=USER_AVC msg=audit(1578863991.588:575): pid=381 uid=104
    auid=4294967295 ses=4294967295 subj=system_u:system_r:system_dbusd_t
    msg='avc:  denied  { send_msg } for msgtype=method_call
    interface=org.freedesktop.systemd1.Manager
    member=LookupDynamicUserByName dest=org.freedesktop.systemd1
    spid=13759 tpid=1 scontext=unconfined_u:unconfined_r:groupadd_t
    tcontext=system_u:system_r:init_t tclass=dbus permissive=1
    exe="/usr/bin/dbus-daemon" sauid=104 hostname=? addr=? terminal=?'

Allow groupadd to use nss-systemd, which calls DBUS method
LookupDynamicUserByName().

Signed-off-by: Nicolas Iooss <nicolas.iooss <AT> m4x.org>
Signed-off-by: Jason Zaman <perfinion <AT> gentoo.org>

 policy/modules/admin/usermanage.te | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/policy/modules/admin/usermanage.te 
b/policy/modules/admin/usermanage.te
index 3605da43..ef18fd64 100644
--- a/policy/modules/admin/usermanage.te
+++ b/policy/modules/admin/usermanage.te
@@ -277,6 +277,10 @@ optional_policy(`
        rpm_rw_pipes(groupadd_t)
 ')
 
+optional_policy(`
+       systemd_use_nss(groupadd_t)
+')
+
 optional_policy(`
        unconfined_use_fds(groupadd_t)
 ')