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Bug 2045905 - AVC for sss_cache while dnf transaction / rpm scriplet with groupadd
Summary: AVC for sss_cache while dnf transaction / rpm scriplet with groupadd
Keywords:
Status: CLOSED DUPLICATE of bug 2030156
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: selinux-policy
Version: CentOS Stream
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Zdenek Pytela
QA Contact: BaseOS QE Security Team
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-01-25 22:29 UTC by Leon Fauster
Modified: 2022-01-26 08:07 UTC (History)
12 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2022-01-26 08:07:42 UTC
Type: Bug
Target Upstream Version:
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker RHELPLAN-109713 0 None None None 2022-01-25 22:32:19 UTC

Description Leon Fauster 2022-01-25 22:29:26 UTC 
AVC for sss_cache while dnf transaction / rpm scriplet with groupadd


Description of problem:

# ausearch -m avc

time->Tue Jan 25 22:34:10 2022
type=PROCTITLE msg=audit(1643146450.895:2775): proctitle=7373735F6361636865002D5547
type=SYSCALL msg=audit(1643146450.895:2775): arch=c000003e syscall=119 success=yes exit=0 a0=ffffffffffffffff a1=0 a2=ffffffffffffffff a3=0 items=0 ppid=18581 pid=18584 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=24 comm="sss_cache" exe="/usr/sbin/sss_cache" subj=unconfined_u:unconfined_r:groupadd_t:s0-s0:c0.c1023 key=(null)
type=AVC msg=audit(1643146450.895:2775): avc:  denied  { setgid } for  pid=18584 comm="sss_cache" capability=6  scontext=unconfined_u:unconfined_r:groupadd_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:groupadd_t:s0-s0:c0.c1023 tclass=capability permissive=0




Version-Release number of selected component (if applicable):

# rpm -qf /usr/sbin/sss_cache
sssd-common-2.6.1-2.el8.x86_64



How reproducible:

Install package with groupadd scriptlet like

# rpm -q --scripts mariadb-server|head -5
preinstall scriptlet (using /bin/sh):
/usr/sbin/groupadd -g 27 -o -r mysql >/dev/null 2>&1 || :
/usr/sbin/useradd -M -N -g mysql -o -r -d /var/lib/mysql -s /sbin/nologin \
  -c "MySQL Server" -u 27 mysql >/dev/null 2>&1 || :


#   authselect current
Profile ID: sssd
Enabled features:
- without-nullok

#   authselect check
Current configuration is valid.
Comment 1 Sumit Bose 2022-01-26 06:28:19 UTC 
Hi,

this looks like a duplicate of Fedora ticket https://bugzilla.redhat.com/show_bug.cgi?id=2022690. Since this ticket is for RHEL-8 I won't close it a duplicate but will move it to the selinux-policy component.

bye,
Sumit
Comment 2 Zdenek Pytela 2022-01-26 08:07:42 UTC 
Sumit, note 3 bugzillas (Fedora, RHEL 8, RHEL 9) are linked together using internal links.

*** This bug has been marked as a duplicate of bug 2030156 ***
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