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Bug 1184436 - avc denied fowner capability for sssd
Summary: avc denied fowner capability for sssd
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: selinux-policy
Version: 7.1
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Miroslav Grepl
QA Contact: Milos Malik
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2015-01-21 11:50 UTC by Nirupama Karandikar
Modified: 2016-05-05 04:36 UTC (History)
11 users (show)

Fixed In Version: selinux-policy-3.13.1-21.el7
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-03-05 10:48:44 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
audit.log (163.44 KB, text/plain)
2015-01-21 12:29 UTC, Nirupama Karandikar 		no flags Details
View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2015:0458 0 normal SHIPPED_LIVE selinux-policy bug fix and enhancement update 2015-03-05 15:17:00 UTC

Description Nirupama Karandikar 2015-01-21 11:50:34 UTC 
Description of problem:
avc denied fowner capability for sssd_be

Version-Release number of selected component (if applicable):
selinux-policy-targeted-3.13.1-17.el7.noarch
selinux-policy-3.13.1-17.el7.noarch
sssd-1.12.2-44.el7.x86_64

How reproducible:
Always

Steps to Reproduce:
1. Add "user=sssd" in [sssd] section of sssd.conf.
2. Try user auth against AD.
3. Able to see following AVCs in audit.log

type=AVC msg=audit(1421840029.634:297414): avc:  denied  { fowner } for  pid=11720 comm="sssd_be" capability=3  scontext=system_u:system_r:sssd_t:s0 tcontext=system_u:system_r:sssd_t:s0 tclass=capability
type=AVC msg=audit(1421840032.710:297429): avc:  denied  { fowner } for  pid=11870 comm="sssd_be" capability=3  scontext=system_u:system_r:sssd_t:s0 tcontext=system_u:system_r:sssd_t:s0 tclass=capability
type=AVC msg=audit(1421840035.738:297444): avc:  denied  { fowner } for  pid=12017 comm="sssd_be" capability=3  scontext=system_u:system_r:sssd_t:s0 tcontext=system_u:system_r:sssd_t:s0 tclass=capability
type=AVC msg=audit(1421840037.814:297447): avc:  denied  { fowner } for  pid=12088 comm="sssd_be" capability=3  scontext=system_u:system_r:sssd_t:s0 tcontext=system_u:system_r:sssd_t:s0 tclass=capability

Actual results:

Able to see following AVCs in audit.log

type=AVC msg=audit(1421840029.634:297414): avc:  denied  { fowner } for  pid=11720 comm="sssd_be" capability=3  scontext=system_u:system_r:sssd_t:s0 tcontext=system_u:system_r:sssd_t:s0 tclass=capability

Expected results:
Should not see AVCs.

Additional info:
Issue do not occur when user=root is set.
Comment 1 Jakub Hrozek 2015-01-21 11:54:50 UTC 
Niru, can you try enabling the full auditing? See the last couple of blue formatted lines in this blog post:
https://danwalsh.livejournal.com/34903.html

I wonder if then audit would show us which file was sssd denied access to.
Comment 3 Nirupama Karandikar 2015-01-21 12:29:14 UTC 
Created attachment 982301 [details]
audit.log
Comment 4 Nirupama Karandikar 2015-01-21 12:30:14 UTC 
Hello Jakub,

Not showing any path for denied file after enabling full audit. Attached audit.log

Niru
Comment 5 Milos Malik 2015-01-21 12:34:35 UTC 
----
type=PATH msg=audit(01/21/2015 13:32:21.605:999) : item=0 name=/var/lib/sss/db/config.ldb inode=50930528 dev=fd:03 mode=file,600 ouid=sssd ogid=sssd rdev=00:00 obj=system_u:object_r:sssd_var_lib_t:s0 objtype=NORMAL 
type=CWD msg=audit(01/21/2015 13:32:21.605:999) :  cwd=/ 
type=SYSCALL msg=audit(01/21/2015 13:32:21.605:999) : arch=x86_64 syscall=utime success=yes exit=0 a0=0x7ff26c4c8d20 a1=0x0 a2=0x4 a3=0x7fffd108e270 items=1 ppid=1 pid=12820 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=sssd exe=/usr/sbin/sssd subj=system_u:system_r:sssd_t:s0 key=(null) 
type=AVC msg=audit(01/21/2015 13:32:21.605:999) : avc:  denied  { fowner } for  pid=12820 comm=sssd capability=fowner  scontext=system_u:system_r:sssd_t:s0 tcontext=system_u:system_r:sssd_t:s0 tclass=capability 
----
Comment 9 errata-xmlrpc 2015-03-05 10:48:44 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-0458.html
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