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 2054718 - SELinux prevents the chage process from executing the sss_cache program
Summary: SELinux prevents the chage process from executing the sss_cache program
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: selinux-policy
Version: 8.6
Hardware: All
OS: Linux
medium
medium
Target Milestone: rc
: 8.6
Assignee: Zdenek Pytela
QA Contact: Milos Malik
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-02-15 15:05 UTC by Milos Malik
Modified: 2022-05-10 16:25 UTC (History)
5 users (show)

Fixed In Version: selinux-policy-3.14.3-92.el8
Doc Type: No Doc Update
Doc Text:
Clone Of: 2054657
Environment:
Last Closed: 2022-05-10 15:15:49 UTC
Type: Bug
Target Upstream Version:
Embargoed:
pm-rhel: mirror+

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker RHELPLAN-112350 0 None None None 2022-02-15 15:34:28 UTC
Red Hat Product Errata RHBA-2022:1995 0 None None None 2022-05-10 15:16:09 UTC

Description Milos Malik 2022-02-15 15:05:55 UTC 
+++ This bug was initially created as a clone of Bug #2054657 +++

Description of problem:
# chage -d 0 test-user
chage: cannot execute /usr/sbin/sss_cache: Permission denied
#

Version-Release number of selected component (if applicable):
selinux-policy-3.14.3-91.el8.noarch
selinux-policy-targeted-3.14.3-91.el8.noarch

Steps to Reproduce:
1. create a user with some password
2. chage -d 0 test-user
3. search for SELinux denials

Actual results (enforcing mode):
----
type=PROCTITLE msg=audit(02/15/2022 16:04:12.036:1591) : proctitle=chage -d 0 test-user 
type=PATH msg=audit(02/15/2022 16:04:12.036:1591) : item=0 name=/usr/sbin/sss_cache inode=8920535 dev=fd:02 mode=file,755 ouid=root ogid=root rdev=00:00 obj=system_u:object_r:sssd_exec_t:s0 nametype=NORMAL cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 cap_frootid=0 
type=CWD msg=audit(02/15/2022 16:04:12.036:1591) : cwd=/root 
type=SYSCALL msg=audit(02/15/2022 16:04:12.036:1591) : arch=x86_64 syscall=execve success=no exit=EACCES(Permission denied) a0=0x55a73e1a7250 a1=0x7ffeecce2690 a2=0x7ffeecce2688 a3=0x7f125fce4840 items=1 ppid=104530 pid=104533 auid=root uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=pts0 ses=127 comm=chage exe=/usr/bin/chage subj=unconfined_u:unconfined_r:passwd_t:s0-s0:c0.c1023 key=(null) 
type=AVC msg=audit(02/15/2022 16:04:12.036:1591) : avc:  denied  { execute } for  pid=104533 comm=chage name=sss_cache dev="vda2" ino=8920535 scontext=unconfined_u:unconfined_r:passwd_t:s0-s0:c0.c1023 tcontext=system_u:object_r:sssd_exec_t:s0 tclass=file permissive=0 
----

Expected results:
 * no SELinux denials
 * no error messages when running the chage program
Comment 1 Milos Malik 2022-02-15 15:07:29 UTC 
Following SELinux denials appeared in permissive mode:
----
type=PROCTITLE msg=audit(02/15/2022 16:06:28.363:1615) : proctitle=sss_cache -UG 
type=PATH msg=audit(02/15/2022 16:06:28.363:1615) : item=1 name=/lib64/ld-linux-x86-64.so.2 inode=9615754 dev=fd:02 mode=file,755 ouid=root ogid=root rdev=00:00 obj=system_u:object_r:ld_so_t:s0 nametype=NORMAL cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 cap_frootid=0 
type=PATH msg=audit(02/15/2022 16:06:28.363:1615) : item=0 name=/usr/sbin/sss_cache inode=8920535 dev=fd:02 mode=file,755 ouid=root ogid=root rdev=00:00 obj=system_u:object_r:sssd_exec_t:s0 nametype=NORMAL cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 cap_frootid=0 
type=CWD msg=audit(02/15/2022 16:06:28.363:1615) : cwd=/root 
type=EXECVE msg=audit(02/15/2022 16:06:28.363:1615) : argc=2 a0=sss_cache a1=-UG 
type=SYSCALL msg=audit(02/15/2022 16:06:28.363:1615) : arch=x86_64 syscall=execve success=yes exit=0 a0=0x563b44d1a250 a1=0x7ffd43c04ad0 a2=0x7ffd43c04ac8 a3=0x7f9068436840 items=2 ppid=105709 pid=105712 auid=root uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=pts0 ses=127 comm=sss_cache exe=/usr/sbin/sss_cache subj=unconfined_u:unconfined_r:passwd_t:s0-s0:c0.c1023 key=(null) 
type=AVC msg=audit(02/15/2022 16:06:28.363:1615) : avc:  denied  { map } for  pid=105712 comm=sss_cache path=/usr/sbin/sss_cache dev="vda2" ino=8920535 scontext=unconfined_u:unconfined_r:passwd_t:s0-s0:c0.c1023 tcontext=system_u:object_r:sssd_exec_t:s0 tclass=file permissive=1 
type=AVC msg=audit(02/15/2022 16:06:28.363:1615) : avc:  denied  { execute_no_trans } for  pid=105712 comm=chage path=/usr/sbin/sss_cache dev="vda2" ino=8920535 scontext=unconfined_u:unconfined_r:passwd_t:s0-s0:c0.c1023 tcontext=system_u:object_r:sssd_exec_t:s0 tclass=file permissive=1 
type=AVC msg=audit(02/15/2022 16:06:28.363:1615) : avc:  denied  { read open } for  pid=105712 comm=chage path=/usr/sbin/sss_cache dev="vda2" ino=8920535 scontext=unconfined_u:unconfined_r:passwd_t:s0-s0:c0.c1023 tcontext=system_u:object_r:sssd_exec_t:s0 tclass=file permissive=1 
type=AVC msg=audit(02/15/2022 16:06:28.363:1615) : avc:  denied  { execute } for  pid=105712 comm=chage name=sss_cache dev="vda2" ino=8920535 scontext=unconfined_u:unconfined_r:passwd_t:s0-s0:c0.c1023 tcontext=system_u:object_r:sssd_exec_t:s0 tclass=file permissive=1 
----
Comment 12 errata-xmlrpc 2022-05-10 15:15:49 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 (selinux-policy bug fix and enhancement update), 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://access.redhat.com/errata/RHBA-2022:1995
Note You need to log in before you can comment on or make changes to this bug.