Bug 1097531 - SELinux is preventing /usr/bin/bash from 'getattr' accesses on the file .
Summary: SELinux is preventing /usr/bin/bash from 'getattr' accesses on the file .
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 20
Hardware: x86_64
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Miroslav Grepl
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: abrt_hash:16d243e527c145fa332bd350476...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-05-14 04:44 UTC by William Brown
Modified: 2014-05-24 23:28 UTC (History)
4 users (show)

Fixed In Version: selinux-policy-3.12.1-166.fc20
Clone Of:
Environment:
Last Closed: 2014-05-24 23:28:07 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description William Brown 2014-05-14 04:44:38 UTC
Description of problem:
sudo setenforce 0
sandbox -X -H /tmp/sandbox firefox
SELinux is preventing /usr/bin/bash from 'getattr' accesses on the file .

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

If you believe that bash should be allowed getattr access on the  file 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:
# grep sh /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                staff_u:staff_r:staff_seunshare_t:s0-s0:c0.c1023
Target Context                system_u:object_r:rsync_exec_t:s0
Target Objects                 [ file ]
Source                        sh
Source Path                   /usr/bin/bash
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           bash-4.2.47-2.fc20.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.12.1-158.fc20.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 3.14.3-200.fc20.x86_64 #1 SMP Tue
                              May 6 19:00:18 UTC 2014 x86_64 x86_64
Alert Count                   1
First Seen                    2014-05-14 14:12:05 CST
Last Seen                     2014-05-14 14:12:05 CST
Local ID                      56643732-60f7-4881-b60b-f236a197820f

Raw Audit Messages
type=AVC msg=audit(1400042525.53:514): avc:  denied  { getattr } for  pid=4924 comm="sh" path="/usr/bin/rsync" dev="dm-2" ino=187666 scontext=staff_u:staff_r:staff_seunshare_t:s0-s0:c0.c1023 tcontext=system_u:object_r:rsync_exec_t:s0 tclass=file


type=SYSCALL msg=audit(1400042525.53:514): arch=x86_64 syscall=stat success=no exit=EACCES a0=26055d0 a1=7fff5aec9b90 a2=7fff5aec9b90 a3=8 items=0 ppid=4923 pid=4924 auid=1343600009 uid=1343600009 gid=1343600009 euid=1343600009 suid=1343600009 fsuid=1343600009 egid=1343600009 sgid=1343600009 fsgid=1343600009 tty=pts0 ses=1 comm=sh exe=/usr/bin/bash subj=staff_u:staff_r:staff_seunshare_t:s0-s0:c0.c1023 key=(null)

Hash: sh,staff_seunshare_t,rsync_exec_t,file,getattr

Additional info:
reporter:       libreport-2.2.2
hashmarkername: setroubleshoot
kernel:         3.14.3-200.fc20.x86_64
type:           libreport

Comment 1 Daniel Walsh 2014-05-17 10:47:45 UTC
ba3b89d23b1237aa452bf49e96cce0e5ab553cd5 fixes this in git.

Comment 2 Fedora Update System 2014-05-21 12:02:57 UTC
selinux-policy-3.12.1-166.fc20 has been submitted as an update for Fedora 20.
https://admin.fedoraproject.org/updates/selinux-policy-3.12.1-166.fc20

Comment 3 Fedora Update System 2014-05-21 23:29:45 UTC
Package selinux-policy-3.12.1-166.fc20:
* should fix your issue,
* was pushed to the Fedora 20 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing selinux-policy-3.12.1-166.fc20'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2014-6584/selinux-policy-3.12.1-166.fc20
then log in and leave karma (feedback).

Comment 4 William Brown 2014-05-21 23:46:24 UTC
When set to permissive, I see:

----
time->Thu May 22 09:14:51 2014
type=PATH msg=audit(1400715891.272:55852): item=1 name=(null) inode=20151643 dev=fd:02 mode=0100755 ouid=0 ogid=0 rdev=00:00 obj=system_u:object_r:ld_so_t:s0 nametype=NORMAL
type=PATH msg=audit(1400715891.272:55852): item=0 name="/usr/bin/rsync" inode=187666 dev=fd:02 mode=0100755 ouid=0 ogid=0 rdev=00:00 obj=system_u:object_r:rsync_exec_t:s0 nametype=NORMAL
type=CWD msg=audit(1400715891.272:55852):  cwd="/home/william"
type=EXECVE msg=audit(1400715891.272:55852): argc=6 a0="/usr/bin/rsync" a1="--exclude=.X11-unix" a2="-utrlHDq" a3="--delete" a4="/tmp/.sandbox-william-91o1lp/" a5="/tmp/.sandbox_tmp_79jk6N/"
type=SYSCALL msg=audit(1400715891.272:55852): arch=c000003e syscall=59 success=yes exit=0 a0=25745d0 a1=2574a30 a2=2574740 a3=8 items=2 ppid=20627 pid=20628 auid=1343600009 uid=1343600009 gid=1343600009 euid=1343600009 suid=1343600009 fsuid=1343600009 egid=1343600009 sgid=1343600009 fsgid=1343600009 tty=pts1 ses=1 comm="rsync" exe="/usr/bin/rsync" subj=staff_u:staff_r:staff_seunshare_t:s0-s0:c0.c1023 key=(null)
type=AVC msg=audit(1400715891.272:55852): avc:  denied  { execute_no_trans } for  pid=20628 comm="sh" path="/usr/bin/rsync" dev="dm-2" ino=187666 scontext=staff_u:staff_r:staff_seunshare_t:s0-s0:c0.c1023 tcontext=system_u:object_r:rsync_exec_t:s0 tclass=file
type=AVC msg=audit(1400715891.272:55852): avc:  denied  { read open } for  pid=20628 comm="sh" path="/usr/bin/rsync" dev="dm-2" ino=187666 scontext=staff_u:staff_r:staff_seunshare_t:s0-s0:c0.c1023 tcontext=system_u:object_r:rsync_exec_t:s0 tclass=file
type=AVC msg=audit(1400715891.272:55852): avc:  denied  { execute } for  pid=20628 comm="sh" name="rsync" dev="dm-2" ino=187666 scontext=staff_u:staff_r:staff_seunshare_t:s0-s0:c0.c1023 tcontext=system_u:object_r:rsync_exec_t:s0 tclass=file

And in addition:

[william@maddy 9:12] /home/william INSERT> mkdir /tmp/sandbox
[william@maddy 9:12] /home/william INSERT> sandbox -X -H /tmp/sandbox firefox
Failed to execute command /usr/share/sandbox/sandboxX.sh: Operation not permitted

This is post a restorecon on /usr and /tmp

Comment 5 Fedora Update System 2014-05-24 23:28:07 UTC
selinux-policy-3.12.1-166.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.


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