[Freeipa-users] k5login loophole even account is disabled on FreeIPA

[Sumit Bose]

On Fri, May 12, 2017 at 08:41:07AM +0200, Sumit Bose wrote:
> On Fri, May 12, 2017 at 09:35:40AM +0300, Alexander Bokovoy wrote:
> > On pe, 12 touko 2017, Thomas Lau wrote:
> > > Folks,
> > > 
> > > let's say I am user thomas, and user "temp1" already marked as "disabled"
> > > on FreeIPA, but thomas at DOMAIN.COM is on /home/temp1/.k5login list, how come
> > > I could still "sudo su - temp1"? It seems skip the checking on FreeIPA even
> > > account is disabled. Did I miss any setting or it's normal?
> > This is normal.
> > 
> > sudo brings you to root. PAM module for su (/etc/pam.d/su) has this:
> > 
> >  auth		sufficient	pam_rootok.so
> > 
> > E.g. if su is executed as root, it is enough, no other authentication
> > checks are done.
> 
> And no authorization checks either becasue there is 
> 
> account         sufficient      pam_succeed_if.so uid = 0 use_uid quiet

and btw, this is completely unrelated to .k5login, even if you remove
thomas at DOMAIN.COM from the file it would still work.

bye,
Sumit

> 
> > 
> > -- 
> > / Alexander Bokovoy
> > 
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