Bug 1298607
| Summary: | httpd_dbus_sssd no longer enables D-Bus communication between Apache and SSSD | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Jan Pazdziora (Red Hat) <jpazdziora> |
| Component: | selinux-policy-targeted | Assignee: | Miroslav Grepl <mgrepl> |
| Status: | CLOSED DUPLICATE | QA Contact: | Ben Levenson <benl> |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | 23 | CC: | dwalsh, jpazdziora |
| Target Milestone: | --- | Keywords: | Regression |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2016-01-15 14:37:25 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Ok it looks something is wrong with the policy. Could you try to run # semodule -B to see if you get errors or if it helps you. (In reply to Miroslav Grepl from comment #2) > Ok it looks something is wrong with the policy. > > Could you try to run > > # semodule -B > > to see if you get errors or if it helps you. # semodule -B # echo $? 0 and I still get the same error when I try to run dbus-send. *** This bug has been marked as a duplicate of bug 1298192 *** |
Description of problem: Up until recently, SELinux boolean httpd_dbus_sssd enabled Apache (httpd_t) dbus send_msg SSSD (sssd_t). Now it leads to org.freedesktop.DBus.Error.AccessDenied and USER_AVC being logged. Version-Release number of selected component (if applicable): dbus-1.10.6-1.fc23.x86_64 kernel-4.3.3-300.fc23.x86_64 selinux-policy-targeted-3.13.1-158.fc23.noarch How reproducible: Deterministic. Steps to Reproduce: 1. Configure SSSD (presumably IPA-enrolled) with ifp (D-Bus), start it. 2. Attempt to run dbus-send --print-reply --system --dest=org.freedesktop.sssd.infopipe /org/freedesktop/sssd/infopipe org.freedesktop.sssd.infopipe.GetUserAttr string:bob31482 array:string:gecos,mail as type httpd_t (since that's what mod_lookup_identity will do) Actual results: Error org.freedesktop.DBus.Error.AccessDenied: An SELinux policy prevents this sender from sending this message to this recipient, 0 matched rules; type="method_call", sender=":1.74" (uid=0 pid=21742 comm="dbus-send --print-reply --system --dest=org.freede") interface="org.freedesktop.sssd.infopipe" member="GetUserAttr" error name="(unset)" requested_reply="0" destination="org.freedesktop.sssd.infopipe" (uid=0 pid=15495 comm="/usr/libexec/sssd/sssd_ifp --uid 0 --gid 0 --debug") and type=USER_AVC msg=audit(1452777868.145:657): pid=685 uid=81 auid=4294967295 ses=4294967295 subj=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 msg='avc: denied { send_msg } for msgtype=method_call interface=org.freedesktop.sssd.infopipe member=GetUserAttr dest=org.freedesktop.sssd.infopipe spid=21742 tpid=15495 scontext=unconfined_u:system_r:httpd_t:s0 tcontext=system_u:system_r:sssd_t:s0 tclass=dbus exe="/usr/bin/dbus-daemon" sauid=81 hostname=? addr=? terminal=?' in /var/log/audit/audit.log. Expected results: method return time=1452777855.573643 sender=:1.45 -> destination=:1.73 serial=5 reply_serial=2 array [ dict entry( string "gecos" variant array [ string "Robert Chase" ] ) dict entry( string "mail" variant array [ string "bob31482" ] ) ] Additional info: # sesearch -C --allow -s httpd_t -t sssd_tFound 7 semantic av rules: allow nsswitch_domain sssd_t : unix_stream_socket connectto ; allow nsswitch_domain sssd_t : key { view read write search link setattr create } ; allow domain domain : key { search link } ; ET allow httpd_t sssd_t : dbus send_msg ; [ httpd_dbus_sssd ] DT allow httpd_t domain : process getpgid ; [ httpd_run_stickshift ] ET allow domain domain : fd use ; [ domain_fd_use ] DT allow daemon daemon : unix_stream_socket connectto ; [ daemons_enable_cluster_mode ] which is exactly the same as on Fedora 22 with selinux-policy-3.13.1-128.21.fc22.noarch.