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Bug 2079441

Summary: SSSD update prompts for smartcard pin twice - After update to 7.9 [rhel-7.9.z]
Product: Red Hat Enterprise Linux 7 Reporter: Alexey Tikhonov <atikhono>
Component: sssdAssignee: Sumit Bose <sbose>
Status: CLOSED ERRATA QA Contact: Scott Poore <spoore>
Severity: high Docs Contact:
Priority: unspecified    
Version: 7.9CC: aboscatt, dwhitley, grajaiya, jhrozek, kpfleming, lslebodn, mzidek, pbrezina, tscherf
Target Milestone: rcKeywords: Triaged, ZStream
Target Release: ---Flags: pm-rhel: mirror+
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: sync-to-jira
Fixed In Version: sssd-1.16.5-10.el7_9.13 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2022-06-28 09:54:33 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Comment 3 Alexey Tikhonov 2022-04-27 14:48:37 UTC 
https://github.com/SSSD/sssd/pull/6024 needs a backport to 1-16 branch.
Comment 5 Alexey Tikhonov 2022-05-30 13:28:43 UTC 
Upstream PR: https://github.com/SSSD/sssd/pull/6187
Comment 9 Alexey Tikhonov 2022-06-10 12:46:59 UTC 
Pushed PR: https://github.com/SSSD/sssd/pull/6187

* `sssd-1-16`
    * ddfc7e99e96ee732586c07342900d287d2378802 - pam_sss: fix for old GDM screen lock
    * bcb392e60c1935a98738988c5289585acd89ce82 - pam: better SC fallback message
Comment 12 Scott Poore 2022-06-13 13:58:39 UTC 
Verified.

Version ::

sssd-1.16.5-10.el7_9.13.x86_64


Results ::

# Setup basic sssd configuration for smart card authentication

yum -y install sssd opensc pcsc-lite gnutls-utils
yum remove -y pam_pkcs11

modutil -dbdir /etc/pki/nssdb -add 'Opensc module' -libfile /usr/lib64/opensc-pkcs11.so

authconfig --enablesssd --enablesssdauth --enablesmartcard --smartcardmodule=sssd --update

cat > /etc/sssd/sssd.conf <<EOF
[sssd]
debug_level = 9
services = nss, pam
domains = shadowutils

[nss]
debug_level = 9

[pam]
debug_level = 9
pam_cert_auth = True

[domain/shadowutils]
debug_level = 9
id_provider = files

[certmap/shadowutils/localuser1]
debug_level = 9
matchrule = <SUBJECT>.*
EOF

chmod 600 /etc/sssd/sssd.conf

systemctl start pcscd
systemctl enable pcscd

yum -y install sssd-polkit-rules sssd-dbus

cp /usr/share/polkit-1/rules.d/sssd-pcsc.rules \
   /usr/share/polkit-1/rules.d/gdm-pcsc.rules
sed -i 's/sssd/gdm/g' /usr/share/polkit-1/rules.d/gdm-pcsc.rules
systemctl restart polkit

systemctl stop sssd; rm -rf /var/lib/sss/{db,mc}/*; systemctl start sssd

# comment out pam_unix auth lines from system-auth, smartcard-auth, gdm-*, maybe more

cd /etc/pam.d
sed -i 's/auth.*pam_unix/#\0/' system-auth
sed -i 's/auth.*pam_unix/#\0/' password-auth
sed -i 's/account.*pam_unix/#\0/' smartcard-auth

# Setup card with external certificate/key
# used openssl generated rootCA and valid and expired certificate/key pairs.

### check valid certificate response
Login allowed via gdm as expected with PIN

### check invalid certificate response
Error message says to "Please (re)insert (different) Smartcard".

# check with valid certificate again
message still shown until remove and reinsert smartcard.
Comment 17 errata-xmlrpc 2022-06-28 09:54:33 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 (sssd bug fix and enhancement update), 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://access.redhat.com/errata/RHBA-2022:5240