RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Bug 842818 - SELinux problem saslauthd cannot work with MECH=shadow
Summary: SELinux problem saslauthd cannot work with MECH=shadow
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: selinux-policy
Version: 6.3
Hardware: All
OS: Linux
medium
high
Target Milestone: rc
: ---
Assignee: Miroslav Grepl
QA Contact: Milos Malik
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2012-07-24 16:13 UTC by David Spurek
Modified: 2015-03-02 05:27 UTC (History)
3 users (show)

Fixed In Version: selinux-policy-3.7.19-159.el6
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-02-21 08:25:56 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2013:0314 0 normal SHIPPED_LIVE selinux-policy bug fix and enhancement update 2013-02-20 20:35:01 UTC

Description David Spurek 2012-07-24 16:13:36 UTC 
Description of problem:

type=SYSCALL msg=audit(1343144349.886:25757): arch=c000003e syscall=2 success=no exit=-13 a0=7f09300996bb a1=80000 a2=1b6 a3=0 items=0 ppid=1 pid=12930 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=1 comm="saslauthd" exe="/usr/sbin/saslauthd" subj=unconfined_u:system_r:saslauthd_t:s0 key=(null)
type=AVC msg=audit(1343144349.886:25757): avc:  denied  { dac_read_search } for  pid=12930 comm="saslauthd" capability=2  scontext=unconfined_u:system_r:saslauthd_t:s0 tcontext=unconfined_u:system_r:saslauthd_t:s0 tclass=capability
type=AVC msg=audit(1343144349.886:25757): avc:  denied  { dac_override } for  pid=12930 comm="saslauthd" capability=1  scontext=unconfined_u:system_r:saslauthd_t:s0 tcontext=unconfined_u:system_r:saslauthd_t:s0 tclass=capability

boolean allow_saslauthd_read_shadow set on:

getsebool -a | grep sasl
allow_saslauthd_read_shadow --> on

sesearch --all -C | grep allow_sasl
ERROR: Cannot get avrules: Neverallow rules requested but not available
DT allow saslauthd_t shadow_t : file { ioctl read getattr lock open } ; [ allow_saslauthd_read_shadow ]
DT allow saslauthd_t etc_t : dir { ioctl read getattr lock search open } ; [ allow_saslauthd_read_shadow ]


Version-Release number of selected component (if applicable):
selinux-policy-3.7.19-154.el6

How reproducible:
always

Steps to Reproduce:
1. run test /CoreOS/cyrus-sasl/Sanity/sanity-saslauthd-and-Cyrus-SASL-Plugins

Actual results:
testsaslauthd -u testuser -p redhat in first Test Phase FAIL
    0: NO "authentication failed"

Expected results:
testsaslauthd -u testuser -p redhat in first Test Phase PASS
    0: OK "Success."

Additional info:
Comment 1 Milos Malik 2012-07-24 16:35:09 UTC 
Following AVCs were seen in permissive mode:
----
time->Tue Jul 24 18:32:01 2012
type=SYSCALL msg=audit(1343147521.798:21101): arch=40000003 syscall=156 success=yes exit=0 a0=46e7 a1=0 a2=bff305f4 a3=b7762740 items=0 ppid=1 pid=18151 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=24 comm="saslauthd" exe="/usr/sbin/saslauthd" subj=unconfined_u:system_r:saslauthd_t:s0 key=(null)
type=AVC msg=audit(1343147521.798:21101): avc:  denied  { setsched } for  pid=18151 comm="saslauthd" scontext=unconfined_u:system_r:saslauthd_t:s0 tcontext=unconfined_u:system_r:saslauthd_t:s0 tclass=process
type=AVC msg=audit(1343147521.798:21101): avc:  denied  { sys_nice } for  pid=18151 comm="saslauthd" capability=23  scontext=unconfined_u:system_r:saslauthd_t:s0 tcontext=unconfined_u:system_r:saslauthd_t:s0 tclass=capability
----
time->Tue Jul 24 18:32:01 2012
type=SYSCALL msg=audit(1343147521.794:21100): arch=40000003 syscall=5 success=yes exit=8 a0=1e2f19 a1=80000 a2=1b6 a3=1e2eb5 items=0 ppid=1 pid=18151 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=24 comm="saslauthd" exe="/usr/sbin/saslauthd" subj=unconfined_u:system_r:saslauthd_t:s0 key=(null)
type=AVC msg=audit(1343147521.794:21100): avc:  denied  { dac_override } for  pid=18151 comm="saslauthd" capability=1  scontext=unconfined_u:system_r:saslauthd_t:s0 tcontext=unconfined_u:system_r:saslauthd_t:s0 tclass=capability
----
Comment 2 Daniel Walsh 2012-07-24 17:16:48 UTC 
Can you turn on full auditing so that we can see what path dac_override is complaining about?
Comment 3 Milos Malik 2012-07-25 07:07:03 UTC 
----
time->Wed Jul 25 09:00:25 2012
type=SYSCALL msg=audit(1343199625.891:21839): arch=40000003 syscall=156 success=yes exit=0 a0=c2f a1=0 a2=bf980cd4 a3=b75df740 items=0 ppid=1 pid=3119 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=3 comm="saslauthd" exe="/usr/sbin/saslauthd" subj=unconfined_u:system_r:saslauthd_t:s0 key=(null)
type=AVC msg=audit(1343199625.891:21839): avc:  denied  { setsched } for  pid=3119 comm="saslauthd" scontext=unconfined_u:system_r:saslauthd_t:s0 tcontext=unconfined_u:system_r:saslauthd_t:s0 tclass=process
type=AVC msg=audit(1343199625.891:21839): avc:  denied  { sys_nice } for  pid=3119 comm="saslauthd" capability=23  scontext=unconfined_u:system_r:saslauthd_t:s0 tcontext=unconfined_u:system_r:saslauthd_t:s0 tclass=capability
----
time->Wed Jul 25 09:00:25 2012
type=PATH msg=audit(1343199625.882:21838): item=0 name="/etc/shadow" inode=187619 dev=08:03 mode=0100000 ouid=0 ogid=0 rdev=00:00 obj=system_u:object_r:shadow_t:s0
type=CWD msg=audit(1343199625.882:21838):  cwd="/var/run/saslauthd"
type=SYSCALL msg=audit(1343199625.882:21838): arch=40000003 syscall=5 success=yes exit=8 a0=4fcf19 a1=80000 a2=1b6 a3=4fceb5 items=1 ppid=1 pid=3119 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=3 comm="saslauthd" exe="/usr/sbin/saslauthd" subj=unconfined_u:system_r:saslauthd_t:s0 key=(null)
type=AVC msg=audit(1343199625.882:21838): avc:  denied  { dac_override } for  pid=3119 comm="saslauthd" capability=1  scontext=unconfined_u:system_r:saslauthd_t:s0 tcontext=unconfined_u:system_r:saslauthd_t:s0 tclass=capability
----
Comment 5 Miroslav Grepl 2012-08-07 23:45:49 UTC 
Fixed in selinux-policy-3.7.19-159.el6
Comment 8 errata-xmlrpc 2013-02-21 08:25:56 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.

http://rhn.redhat.com/errata/RHBA-2013-0314.html
Note You need to log in before you can comment on or make changes to this bug.