Red Hat Bugzilla – Bug 784121
semanage is sending the wrong kind of audit events
Last modified: 2015-01-14 08:15:43 EST
Description of problem:
Semanage is sending the wrong kind of audit events. When a user is assigned a new role, an AUDIT_ROLE_ASSIGN event should be sent. When a user has a role removed, an AUDIT_ROLE_REMOVE event should be sent. When a user's process changes roles, like during login, its supposed to issue an AUDIT_USER_ROLE_CHANGE event.
Semanage is only sending AUDIT_USER_ROLE_CHANGE - which is the wrong kind of event.
Steps to Reproduce:
1. semanage user --add -R staff_r test
2. ausearch -m ROLE_ASSIGN --start recent
Actually on further review, AUDIT_USER_ROLE_CHANGE is being sent by newrole, which is good. I guess semanage is simply missing assign/delete of roles to user accounts.
semanage login -a -s guest_u pwalsh
Wrote this record to the audit log.
time->Tue Jan 24 10:37:44 2012
type=USER_ROLE_CHANGE msg=audit(1327419464.300:60279): pid=0 uid=0 auid=3267 ses=7 subj=staff_u:unconfined_r:semanage_t:s0-s0:c0.c1023 msg='op=add SELinux user mapping acct="pwalsh" old-seuser=? old-role=? old-range=? new-seuser=guest_u new-role=? new-range=? exe=/usr/sbin/semanage hostname=? addr=? terminal=pts/0 res=success'
That is the wrong kind of event. It should be AUDIT_ROLE_ASSIGN because you are adding something to the user's security attributes. Also, on delete I am not seeing the old role in the event:
type=USER_ROLE_CHANGE msg=audit(1327347475.071:2739): user pid=11644 uid=0 auid=4325 ses=1 subj=unconfined_u:unconfined_r:semanage_t:s0 msg='op=delete SELinux user record acct="test" old-seuser=? old-role=? old-range=? new-seuser=? new-role=? new-range=? exe=/usr/sbin/semanage hostname=? addr=? terminal=pts/0 res=success'
Not to mention I deleted a role and its telling me I deleted the user.
Correct me if I'm wrong:
ROLE_ASSIGN event should be returned when I run "semanage user --add -R staff_r test".
ROLE_REMOVE event should be returned when I run "semanage user --delete -R staff_r test".
What kind of event should be returned when I run "semanage user --modify -R user_r test" ?
That is correct. For the time being, the modify should produce a ROLE_ASSIGN event. Someday in the future, we can make a ROLE_MODIFY event. But not right now.
This bug appears to have been reported against 'rawhide' during the Fedora 19 development cycle.
Changing version to '19'.
(As we did not run this process for some time, it could affect also pre-Fedora 19 development
cycle bugs. We are very sorry. It will help us with cleanup during Fedora 19 End Of Life. Thank you.)
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