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Description of problem:
Secure_mode boolean should prevent confined users from transitioning to sysadm domain or switch to the root user (switch to privileged role).
Created a brand new RHEL9 beta install.
Created a staff_u user pimpampet:
id -Z
staff_u:staff_r:staff_t:s0-s0:c0.c1023
getsebool secure_mode
secure_mode --> on
rpm -q selinux-policy
selinux-policy-34.1.16-1.el9_b.noarch
newrole -r unconfined_r
Password:
[pimpampet@rhel9-beta ~]$ id -Z
staff_u:unconfined_r:unconfined_t:s0-s0:c0.c1023
(RHBA-2021:4420 will install selinux-policy 3.14.3-80; more recent than the one currently available in RHEL 9.0 beta)
Steps to Reproduce:
1. Enable secure_mode boolean
2. Login as SELinux user staff_u
3. Switch with newrole to unconfined_r
Actual results:
SELinux user staff can switch to unconfined domain
Expected results:
SELinux user staff cannot switch to unconfined domain
Additional info:
Proposed fix: remove unconfined_t from unpriv_user_domain.