Hi Jochen,

Yes, that pam_deny.so the next line:

password    requisite     pam_pwquality.so try_first_pass local_users_only
retry=3 authtok_type=
password    sufficient    pam_unix.so sha512 shadow try_first_pass
use_authtok
#password    sufficient    pam_sss.so use_authtok # fails with 2FA enabled
password    sufficient    pam_krb5.so chpw_prompt=true use_authok debug=true
[banner=Retype old]
password    required      pam_deny.so

-----Original Message-----
From: Jochen Hein [mailto:joc...@jochen.org] 
Sent: Wednesday, 29 November 2017 6:37 PM
To: Aaron Hicks via FreeIPA-users <freeipa-users@lists.fedorahosted.org>
Cc: Aaron Hicks <aaron.hi...@nesi.org.nz>
Subject: Re: [Freeipa-users] Using pam_krb5 to change password at ssh prompt
gives shell

Aaron Hicks via FreeIPA-users <freeipa-users@lists.fedorahosted.org>
writes:

> As a workaround for another issue we have with using two-factor 
> authentication, we're using pam_krb5 to change expired passwords, so 
> in /etc/pam.d/password-auth-ac whe have changed the password section to
be:
>
...
>
> This puts the user through a password reset process without the second 
> factor interfering, but at the end they get shell. This is without the 
> second factor.
>
>  
>
> Is there a parameter this so that the connection is disconnected 
> instead, or the connection attempt is restarted?

I'd try pam_deny.  This should work for password section.

Jochen

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