Bug 2231732

Summary: SELinux is preventing ipa-server-guar from 'search' accesses on the directory net.
Product: [Fedora] Fedora Reporter: James <james>
Component: selinux-policyAssignee: Zdenek Pytela <zpytela>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: medium    
Version: 38CC: dwalsh, james, lvrabec, mmalik, nknazeko, omosnacek, pkoncity, vmojzis, zpytela
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
Whiteboard: abrt_hash:b527f2c07b3cc3cc61c6975dcabd83feba12d783c864ab5730434d8705a5116e;VARIANT_ID=server;
Fixed In Version: selinux-policy-38.32-1.fc38 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2024-03-15 01:49:51 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:
Attachments:
Description Flags
File: description
none
File: os_info none

Description James 2023-08-13 16:41:40 UTC 
Description of problem:
SELinux is preventing ipa-server-guar from 'search' accesses on the directory net.

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

If you believe that ipa-server-guar should be allowed search access on the net directory by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# ausearch -c 'ipa-server-guar' --raw | audit2allow -M my-ipaserverguar
# semodule -X 300 -i my-ipaserverguar.pp

Additional Information:
Source Context                system_u:system_r:certmonger_t:s0
Target Context                system_u:object_r:sysctl_net_t:s0
Target Objects                net [ dir ]
Source                        ipa-server-guar
Source Path                   ipa-server-guar
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
SELinux Policy RPM            selinux-policy-targeted-38.24-1.fc38.noarch
Local Policy RPM              selinux-policy-targeted-38.24-1.fc38.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 6.4.9-200.fc38.x86_64 #1 SMP
                              PREEMPT_DYNAMIC Tue Aug 8 21:21:11 UTC 2023 x86_64
Alert Count                   1476
First Seen                    2023-07-13 20:09:00 BST
Last Seen                     2023-08-12 13:56:24 BST
Local ID                      f3e3f090-022f-45d2-9c11-2205ae4d34dc

Raw Audit Messages
type=AVC msg=audit(1691844984.141:222): avc:  denied  { search } for  pid=1513 comm="dogtag-ipa-ca-r" name="net" dev="proc" ino=2356 scontext=system_u:system_r:certmonger_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=dir permissive=0


Hash: ipa-server-guar,certmonger_t,sysctl_net_t,dir,search

Version-Release number of selected component:
selinux-policy-targeted-38.24-1.fc38.noarch

Additional info:
reporter:       libreport-2.17.11
reason:         SELinux is preventing ipa-server-guar from 'search' accesses on the directory net.
package:        selinux-policy-targeted-38.24-1.fc38.noarch
component:      selinux-policy
hashmarkername: setroubleshoot
type:           libreport
kernel:         6.4.9-200.fc38.x86_64
component:      selinux-policy
Comment 1 James 2023-08-13 16:41:43 UTC 
Created attachment 1983200 [details]
File: description
Comment 2 James 2023-08-13 16:41:44 UTC 
Created attachment 1983201 [details]
File: os_info
Comment 3 Zdenek Pytela 2023-08-24 20:23:53 UTC 
James,

Can you switch the system to permissive mode and gather all denials?

setenforce 0
<reproduce>
ausearch -i -m avc,user_avc,selinux_err,user_selinux_err -ts today
setenforce 1
Comment 4 James 2024-01-13 21:22:13 UTC 
Apologies for taking many months to respond.

I don't know exactly what triggers these denials, they seem to happen on boot so I set permissive mode then restarted. The machine is a FreeIPA server selinux-policy-targeted-39.3-1.fc39.noarch which has been re-labelled.

ausearch output, with timestamps since the prior boot:


type=AVC msg=audit(13/01/24 21:19:33.612:137) : avc:  denied  { search } for  pid=1491 comm=ipa-server-guar name=net dev="proc" ino=2405 scontext=system_u:system_r:certmonger_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=dir permissive=1
----
type=AVC msg=audit(13/01/24 21:19:33.612:138) : avc:  denied  { read } for  pid=1491 comm=ipa-server-guar name=disable_ipv6 dev="proc" ino=12111 scontext=system_u:system_r:certmonger_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=file permissive=1
----
type=AVC msg=audit(13/01/24 21:19:33.612:139) : avc:  denied  { open } for  pid=1491 comm=ipa-server-guar path=/proc/sys/net/ipv6/conf/all/disable_ipv6 dev="proc" ino=12111 scontext=system_u:system_r:certmonger_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=file permissive=1
----
type=AVC msg=audit(13/01/24 21:19:33.612:140) : avc:  denied  { getattr } for  pid=1491 comm=ipa-server-guar path=/proc/sys/net/ipv6/conf/all/disable_ipv6 dev="proc" ino=12111 scontext=system_u:system_r:certmonger_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=file permissive=1
----
type=AVC msg=audit(13/01/24 21:19:34.455:145) : avc:  denied  { read } for  pid=1553 comm=dogtag-ipa-ca-r name=disable_ipv6 dev="proc" ino=12111 scontext=system_u:system_r:certmonger_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=file permissive=1
----
type=AVC msg=audit(13/01/24 21:19:34.455:146) : avc:  denied  { open } for  pid=1553 comm=dogtag-ipa-ca-r path=/proc/sys/net/ipv6/conf/all/disable_ipv6 dev="proc" ino=12111 scontext=system_u:system_r:certmonger_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=file permissive=1
----
type=AVC msg=audit(13/01/24 21:19:34.456:147) : avc:  denied  { getattr } for  pid=1553 comm=dogtag-ipa-ca-r path=/proc/sys/net/ipv6/conf/all/disable_ipv6 dev="proc" ino=12111 scontext=system_u:system_r:certmonger_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=file permissive=1
----
type=AVC msg=audit(13/01/24 21:19:34.553:148) : avc:  denied  { search } for  pid=1521 comm=dogtag-ipa-ca-r name=net dev="proc" ino=2405 scontext=system_u:system_r:certmonger_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=dir permissive=1
----
type=AVC msg=audit(13/01/24 21:19:34.964:155) : avc:  denied  { read } for  pid=1559 comm=dogtag-ipa-ca-r name=disable_ipv6 dev="proc" ino=12111 scontext=system_u:system_r:certmonger_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=file permissive=1
----
type=AVC msg=audit(13/01/24 21:19:34.969:156) : avc:  denied  { open } for  pid=1559 comm=dogtag-ipa-ca-r path=/proc/sys/net/ipv6/conf/all/disable_ipv6 dev="proc" ino=12111 scontext=system_u:system_r:certmonger_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=file permissive=1
----
type=AVC msg=audit(13/01/24 21:19:34.969:157) : avc:  denied  { getattr } for  pid=1559 comm=dogtag-ipa-ca-r path=/proc/sys/net/ipv6/conf/all/disable_ipv6 dev="proc" ino=12111 scontext=system_u:system_r:certmonger_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=file permissive=1
----
type=AVC msg=audit(13/01/24 21:19:35.016:158) : avc:  denied  { search } for  pid=1553 comm=dogtag-ipa-ca-r name=net dev="proc" ino=2405 scontext=system_u:system_r:certmonger_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=dir permissive=1
----
type=AVC msg=audit(13/01/24 21:19:35.336:160) : avc:  denied  { search } for  pid=1556 comm=dogtag-ipa-ca-r name=net dev="proc" ino=2405 scontext=system_u:system_r:certmonger_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=dir permissive=1
----
type=AVC msg=audit(13/01/24 21:19:35.336:161) : avc:  denied  { read } for  pid=1556 comm=dogtag-ipa-ca-r name=disable_ipv6 dev="proc" ino=12111 scontext=system_u:system_r:certmonger_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=file permissive=1
----
type=AVC msg=audit(13/01/24 21:19:35.336:162) : avc:  denied  { open } for  pid=1556 comm=dogtag-ipa-ca-r path=/proc/sys/net/ipv6/conf/all/disable_ipv6 dev="proc" ino=12111 scontext=system_u:system_r:certmonger_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=file permissive=1
----
type=AVC msg=audit(13/01/24 21:19:35.336:163) : avc:  denied  { getattr } for  pid=1556 comm=dogtag-ipa-ca-r path=/proc/sys/net/ipv6/conf/all/disable_ipv6 dev="proc" ino=12111 scontext=system_u:system_r:certmonger_t:s0 tcontext=system_u:object_r:sysctl_net_t:s0 tclass=file permissive=1
----
type=AVC msg=audit(13/01/24 21:19:39.139:173) : avc:  denied  { name_bind } for  pid=2120 comm=rpcbind src=62779 scontext=system_u:system_r:rpcbind_t:s0 tcontext=system_u:object_r:unreserved_port_t:s0 tclass=udp_socket permissive=1
----
type=USER_AVC msg=audit(13/01/24 21:19:43.652:188) : pid=1107 uid=dbus auid=unset ses=unset subj=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 msg='avc:  denied  { send_msg } for  scontext=system_u:system_r:httpd_t:s0 tcontext=system_u:system_r:avahi_t:s0 tclass=dbus permissive=1 exe=/usr/bin/dbus-broker sauid=dbus hostname=? addr=? terminal=?'
----
type=USER_AVC msg=audit(13/01/24 21:19:43.654:189) : pid=1107 uid=dbus auid=unset ses=unset subj=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 msg='avc:  denied  { send_msg } for  scontext=system_u:system_r:avahi_t:s0 tcontext=system_u:system_r:httpd_t:s0 tclass=dbus permissive=1 exe=/usr/bin/dbus-broker sauid=dbus hostname=? addr=? terminal=?'


(Or is this a FreeIPA bug?)
Comment 5 Zdenek Pytela 2024-01-15 10:00:27 UTC 
Thank you. There are 3 buckets of denials:
1. certmonger - will be added to the policy
2. avahi dbus - requires to turn the httpd_dbus_avahi boolean on
3. a bug in rpcbind, already reported
Comment 6 Fedora Update System 2024-02-28 10:08:49 UTC 
FEDORA-2024-d1d8ba7222 (selinux-policy-38.32-1.fc38) has been submitted as an update to Fedora 38.
https://bodhi.fedoraproject.org/updates/FEDORA-2024-d1d8ba7222
Comment 7 Fedora Update System 2024-02-29 02:01:52 UTC 
FEDORA-2024-d1d8ba7222 has been pushed to the Fedora 38 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2024-d1d8ba7222`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2024-d1d8ba7222

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 8 Fedora Update System 2024-03-15 01:49:51 UTC 
FEDORA-2024-d1d8ba7222 (selinux-policy-38.32-1.fc38) has been pushed to the Fedora 38 stable repository.
If problem still persists, please make note of it in this bug report.