Bug 1795044

Summary: SELinux is preventing dconf worker from 'connectto' accesses on the unix_stream_socket /run/dbus/system_bus_socket.
Product: [Fedora] Fedora Reporter: rocketeer3000 <rocketeer3000>
Component: selinux-policyAssignee: Zdenek Pytela <zpytela>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: low Docs Contact:
Priority: low    
Version: 31CC: dwalsh, grepl.miroslav, lvrabec, plautrba, vmojzis, zpytela
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
Whiteboard: abrt_hash:d96d15fd92ebcd4ad9bb763bec07b9c0f67b45092ab9f22a0b28f99f1a4f6389;VARIANT_ID=workstation;
Fixed In Version: selinux-policy-3.14.4-46.fc31 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-02-07 01:51:08 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description rocketeer3000 2020-01-26 16:50:06 UTC
Description of problem:
just copying files from disk to usb disk, I was getting properties from two other directories meanwhile (space that they occupied)
SELinux is preventing dconf worker from 'connectto' accesses on the unix_stream_socket /run/dbus/system_bus_socket.

*****  Plugin catchall (100. confidence) suggests   **************************

Si cree que de manera predeterminada se debería permitir a dconf worker el acceso connectto sobre  system_bus_socket unix_stream_socket.     
Then debería reportar esto como un error.
Puede generar un módulo de política local para permitir este acceso.
Do
permita el acceso temporalmente ejecutando:
# ausearch -c 'dconf worker' --raw | audit2allow -M mi-dconfworker
# semodule -X 300 -i mi-dconfworker.pp

Additional Information:
Source Context                unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023
Target Context                system_u:system_r:system_dbusd_t:s0-s0:c0.c1023
Target Objects                /run/dbus/system_bus_socket [ unix_stream_socket ]
Source                        dconf worker
Source Path                   dconf worker
Port                          <Desconocido>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.14.4-44.fc31.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 5.4.13-201.fc31.x86_64 #1 SMP Tue
                              Jan 21 17:21:47 UTC 2020 x86_64 x86_64
Alert Count                   2
First Seen                    2020-01-26 17:44:10 CET
Last Seen                     2020-01-26 17:44:25 CET
Local ID                      292a4ce4-d2d0-4017-8aea-0bf4644131d6

Raw Audit Messages
type=AVC msg=audit(1580057065.247:300): avc:  denied  { connectto } for  pid=3668 comm=64636F6E6620776F726B6572 path="/run/dbus/system_bus_socket" scontext=unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023 tcontext=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 tclass=unix_stream_socket permissive=0


Hash: dconf worker,thumb_t,system_dbusd_t,unix_stream_socket,connectto

Version-Release number of selected component:
selinux-policy-3.14.4-44.fc31.noarch

Additional info:
component:      selinux-policy
reporter:       libreport-2.11.3
hashmarkername: setroubleshoot
kernel:         5.4.13-201.fc31.x86_64
type:           libreport

Comment 1 Zdenek Pytela 2020-01-27 09:05:06 UTC
Hi,

Thank you for reporting the issue. I've sent a PR for a review:
https://github.com/fedora-selinux/selinux-policy-contrib/pull/188

Comment 2 Lukas Vrabec 2020-01-27 14:26:35 UTC
Some changes are requested in PR mentioned in comment#1.

Comment 3 Lukas Vrabec 2020-01-30 16:48:46 UTC
commit 9e0b4dd06e1de366a0ca53e879bf3069a64b654b (HEAD -> rawhide, origin/rawhide)
Author: Nikola Knazekova <nknazeko>
Date:   Thu Jan 30 11:47:16 2020 +0100

    Allow init_t to create apache log dirs.
    
    PR for new apache create log dirs macro: https://github.com/fedora-selinux/selinux-policy-contrib/pull/194
    
    Fixed Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1789868
    
    $ rpm -qa selinux-policy
    selinux-policy-3.14.5-20.fc32.noarch
    
    $ sesearch -A -s init_t -t httpd_log_t -p create -c dir
    
    Scratch build installed
    
    $ rpm -qa selinux-policy
    selinux-policy-3.14.5-21.fc32.100.noarch
    
    $ sesearch -A -s init_t -t httpd_log_t -p create -c dir
    allow init_t httpd_log_t:dir { add_name create link remove_name rename reparent rmdir setattr unlink write };

Comment 4 Lukas Vrabec 2020-01-30 16:51:28 UTC
Please ignore previous comment#3, it's wrong commit msg. This one is correct:

commit f23171a07d8668859906e4e0d9df1171a8e4f183 (HEAD -> rawhide, origin/rawhide, origin/HEAD)
Author: Zdenek Pytela <zpytela>
Date:   Mon Jan 27 10:02:43 2020 +0100

    Allow thumb_t connect to system_dbusd_t BZ(1795044)

Comment 5 Fedora Update System 2020-02-05 10:55:18 UTC
FEDORA-2020-4824687c8c has been submitted as an update to Fedora 31. https://bodhi.fedoraproject.org/updates/FEDORA-2020-4824687c8c

Comment 6 Fedora Update System 2020-02-06 01:12:09 UTC
selinux-policy-3.14.4-46.fc31 has been pushed to the Fedora 31 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2020-4824687c8c

Comment 7 Fedora Update System 2020-02-07 01:51:08 UTC
selinux-policy-3.14.4-46.fc31 has been pushed to the Fedora 31 stable repository. If problems still persist, please make note of it in this bug report.