Bug 1748946 - SELinux is preventing cp from using the 'fsetid' capabilities.
Summary: SELinux is preventing cp from using the 'fsetid' capabilities.
Keywords:
Status: CLOSED EOL
Alias: None
Product: Fedora
Classification: Fedora
Component: pcp
Version: 29
Hardware: x86_64
OS: Unspecified
medium
low
Target Milestone: ---
Assignee: Nathan Scott
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: abrt_hash:fbc982bb114bebebc675ca806ea...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-09-04 14:14 UTC by robert fairbrother
Modified: 2019-11-27 18:10 UTC (History)
11 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2019-11-27 18:10:08 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description robert fairbrother 2019-09-04 14:14:59 UTC
Description of problem:
SELinux is preventing cp from using the 'fsetid' capabilities.

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

If you believe that cp should have the fsetid capability 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 'cp' --raw | audit2allow -M my-cp
# semodule -X 300 -i my-cp.pp

Additional Information:
Source Context                system_u:system_r:pcp_pmie_t:s0
Target Context                system_u:system_r:pcp_pmie_t:s0
Target Objects                Unknown [ capability ]
Source                        cp
Source Path                   cp
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.14.2-60.fc29.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 5.1.16-200.fc29.x86_64 #1 SMP Wed
                              Jul 3 16:03:17 UTC 2019 x86_64 x86_64
Alert Count                   1
First Seen                    2019-07-14 23:41:58 MDT
Last Seen                     2019-07-14 23:41:58 MDT
Local ID                      b1bae3b4-e0a1-4b4f-a9dc-af46fbacc4e8

Raw Audit Messages
type=AVC msg=audit(1563169318.627:218): avc:  denied  { fsetid } for  pid=1865 comm="cp" capability=4  scontext=system_u:system_r:pcp_pmie_t:s0 tcontext=system_u:system_r:pcp_pmie_t:s0 tclass=capability permissive=0


Hash: cp,pcp_pmie_t,pcp_pmie_t,capability,fsetid

Version-Release number of selected component:
selinux-policy-3.14.2-60.fc29.noarch

Additional info:
component:      selinux-policy
reporter:       libreport-2.10.1
hashmarkername: setroubleshoot
kernel:         5.2.11-100.fc29.x86_64
type:           libreport

Potential duplicate: bug 1708082

Comment 1 Lukas Vrabec 2019-09-04 15:36:40 UTC
Hi Lukas, 

Should this capability be added to pcp_pmie_t SELinux domain? 

       CAP_FSETID
              * Don't clear set-user-ID and set-group-ID mode bits when a file is modified;
              * set the set-group-ID bit for a file whose GID does not match the filesystem or any of
                the supplementary GIDs of the calling process.

Thanks,
Lukas.

Comment 2 Ben Cotton 2019-10-31 18:52:40 UTC
This message is a reminder that Fedora 29 is nearing its end of life.
Fedora will stop maintaining and issuing updates for Fedora 29 on 2019-11-26.
It is Fedora's policy to close all bug reports from releases that are no longer
maintained. At that time this bug will be closed as EOL if it remains open with a
Fedora 'version' of '29'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version.

Thank you for reporting this issue and we are sorry that we were not 
able to fix it before Fedora 29 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora, you are encouraged  change the 'version' to a later Fedora 
version prior this bug is closed as described in the policy above.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events. Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

Comment 3 Lukas Berk 2019-11-13 12:47:06 UTC
Not sure,  I'd have to defer to Nathan here.

Comment 4 Nathan Scott 2019-11-13 21:26:36 UTC
This will have originated from the pmie_check / pmie_daily scripts that help manage pmie farm startup and logs.  I see pcp_pmlogger_t already has this capability for the same reasons - I'll add it into the pmie set.

Thanks Lukas's.

Comment 5 Ben Cotton 2019-11-27 18:10:08 UTC
Fedora 29 changed to end-of-life (EOL) status on 2019-11-26. Fedora 29 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version. If you
are unable to reopen this bug, please file a new report against the
current release. If you experience problems, please add a comment to this
bug.

Thank you for reporting this bug and we are sorry it could not be fixed.


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