Bug 1325809

Summary:	[RFE] Make OTP/2FA authentication optional
Product:	Red Hat Enterprise Linux 7	Reporter:	Sumit Bose <sbose>
Component:	sssd	Assignee:	SSSD Maintainers <sssd-maint>
Status:	CLOSED ERRATA	QA Contact:	Steeve Goveas <sgoveas>
Severity:	unspecified	Docs Contact:	Marc Muehlfeld <mmuehlfe>
Priority:	unspecified
Version:	7.3	CC:	enewland, grajaiya, jhrozek, ksiddiqu, lslebodn, mkosek, mvarun, mzidek, nsoman, pbrezina, sssd-maint
Target Milestone:	rc	Keywords:	FutureFeature
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	sssd-1.14.0-2.el7	Doc Type:	Enhancement
Doc Text:	sssd now provides optional two-factor authentication The System Security Services Daemon (SSSD) now allows users with two-factor authentication enabled to authenticate to services either by using a standard password and a one-time password (OTP), or using only a standard password. Optional two-factor authentication enables administrators to configure local logins using a single factor, while other services, like access to VPN gateways, can request both factors. As a result, during the login, the user can enter either both factors, or optionally only the password. The Kerberos ticket then uses authentication indicators to list the used factors.	Story Points:	---
Clone Of:
Clones:	1351245 (view as bug list)		Environment:
Last Closed:	2016-11-04 07:17:34 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1351245

Description Sumit Bose 2016-04-11 09:21:41 UTC

Description of problem:

It OTP authentication is enabled in the IPA server for a user only OTP authentication is possible although the user has a long-term password which can be used for single-factor authentication as well. It would be good if SSSD can do 1FA as well if only one factor was given at the login prompt.

Additionally the documentation might be enhanced to illustrate how the credentials can be promoted from 1FA to 2FA by calling 'su' or switching to the screen saver. This will be important as soon as applications become aware of Authentication Indicators see e.g. #1224057.

Comment 1 Jakub Hrozek 2016-04-11 09:58:05 UTC

Upstream ticket:
https://fedorahosted.org/sssd/ticket/2988

Comment 2 Jakub Hrozek 2016-07-07 10:45:08 UTC

* master: 78027feeb56d6fe216f699be86a4716aaef3f628

Comment 6 Varun Mylaraiah 2016-08-23 12:04:01 UTC

Verified

sssd-1.14.0-27.el7.x86_64
ipa-server-4.4.0-8.el7.x86_64


[root@host108 ~]# ipa user-show
User login: otpuser
  User login: otpuser
  First name: otp
  Last name: user
  Home directory: /home/otpuser
  Login shell: /bin/sh
  Principal name: otpuser
  Principal alias: otpuser
  Email address: otpuser
  UID: 1657800009
  GID: 1657800009
  User authentication types: otp, password
  Account disabled: False
  Password: True
  Member of groups: ipausers
  Kerberos keys available: True


[root@host108 ~]# ssh -l otpuser `hostname`
First Factor:   -------------------------------------> login with single-factor authentication (only password)
Second Factor (optional): 
Last login: Tue Aug 23 17:00:19 2016
Could not chdir to home directory /home/otpuser: No such file or directory
-sh-4.2$ 
-sh-4.2$ su otpuser 
First Factor: 
Second Factor (optional):  -------------------------->  switching from 1FA to 2FA (with key+token)
sh-4.2$ 
sh-4.2$

Comment 8 errata-xmlrpc 2016-11-04 07:17:34 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHEA-2016-2476.html