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Bug 1762415

Summary: Force LDAPS over 636 with AD Access Provider
Product: Red Hat Enterprise Linux 8 Reporter: Hemant B Khot <hkhot>
Component: sssdAssignee: Sumit Bose <sbose>
Status: CLOSED ERRATA QA Contact: sssd-qe <sssd-qe>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 8.1CC: ddas, grajaiya, jhrozek, lslebodn, mark.crossland, mzidek, pbrezina, sbose, sgadekar, sgoveas, thalman, tscherf
Target Milestone: rcFlags: pm-rhel: mirror+
Target Release: 8.0   
Hardware: All   
OS: Linux   
Whiteboard: sync-to-jira
Fixed In Version: sssd-2.2.3-11.el8 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-04-28 16:56:04 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:

Comment 1 Sumit Bose 2019-12-12 18:54:56 UTC 
Upstream ticket:
https://pagure.io/SSSD/sssd/issue/4131
Comment 2 Mark Crossland 2020-01-09 10:35:37 UTC 
This will also need fixing in RHEL7
Comment 3 Sumit Bose 2020-01-09 11:08:50 UTC 
(In reply to Mark Crossland from comment #2)
> This will also need fixing in RHEL7

jfyi, there is https://bugzilla.redhat.com/show_bug.cgi?id=1784620 for RHEL-7.

bye,
Sumit
Comment 4 Mark Crossland 2020-01-09 11:10:16 UTC 
Excellent, I tried searching but failed to find it.
Comment 5 Pavel Březina 2020-01-14 10:06:36 UTC 
* `master`
    * 24387e19f065e6a585b1120d5568cb4df271d102 - ad: set min and max ssf for ldaps
    * 78649907b81b4bdaf8fc6a6e6ae55ed3cd5419f5 - ldap: add new option ldap_sasl_maxssf
    * 341ba49b0deb42e17d535744824786c2499656b7 - ad: add ad_use_ldaps
    * 090cf77a0fd5f300a753667658af3ed763a88e83 - ad: allow booleans for ad_inherit_opts_if_needed()
* `sssd-1-16`
    * 9b875b87fda7dab1c92022b5c2e3b11cd5fffa4f - ad: set min and max ssf for ldaps
    * 07d19249a88d90135dce21e3d112caf70629ef02 - ldap: add new option ldap_sasl_maxssf
    * b2aca1f7d7aa4a11f86d977ad00481aeb1f9a436 - ad: add ad_use_ldaps
    * 44e76055d4413e56a33a90185161b6cfa4062d03 - ad: allow booleans for ad_inherit_opts_if_needed()
Comment 7 shridhar 2020-02-17 11:58:05 UTC 
Tested with following information:

root@ipaqavma ~]# rpm -q sssd
sssd-2.2.3-13.el8.x86_64

-----
Without firewall rule and without ad_use_ldaps option
-----
root@ipaqavma ~]# iptables -D OUTPUT -p tcp  --destination-port 389 -j DROP
[root@ipaqavma ~]#  cat /etc/sssd/sssd.conf 

[sssd]
domains = sssd2016.com
config_file_version = 2
services = nss, pam

[domain/sssd2016.com]
ad_domain = sssd2016.com
krb5_realm = SSSD2016.COM
realmd_tags = manages-system joined-with-adcli 
cache_credentials = True
id_provider = ad
krb5_store_password_if_offline = True
default_shell = /bin/bash
ldap_id_mapping = True
use_fully_qualified_names = True
fallback_homedir = /home/%u@%d
access_provider = ad
debug_level = 9
[root@ipaqavma ~]# systemctl stop sssd; rm -rf /var/lib/sss/db/* ; rm -rf /var/log/sssd/sssd; systemctl start sssd
[root@ipaqavma ~]# id administrator
uid=1999200500(administrator) gid=1999200513(domain users) groups=1999200513(domain users),1999200512(domain admins),1999226683(parent_group-3470826),1999200572(denied rodc password replication group),1999200518(schema admins),1999200520(group policy creator owners),1999200519(enterprise admins),1999226734(parent_group-3471746)
[root@ipaqavma ~]# egrep sdap_print_server /var/log/sssd/sssd_sssd2016.com.log 
(Mon Feb 17 06:44:35 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:36 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.161:389
(Mon Feb 17 06:44:39 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:42 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:42 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:42 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:42 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:42 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:43 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:43 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:44 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:45 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:46 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:3268
(Mon Feb 17 06:44:50 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389


-----
With firewall rule blocking 389 port and without ad_use_ldaps option in sssd.conf
-----

[root@ipaqavma ~]# iptables -A OUTPUT -p tcp  --destination-port 389 -j DROP
[root@ipaqavma ~]# systemctl stop sssd; rm -rf /var/lib/sss/db/* ; rm -rf /var/log/sssd/sssd; systemctl start sssd
[root@ipaqavma ~]# id administrator
id: ‘administrator’: no such user
[root@ipaqavma ~]# egrep sdap_print_server /var/log/sssd/sssd_sssd2016.com.log 
(Mon Feb 17 06:44:35 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:36 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.161:389
(Mon Feb 17 06:44:39 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:42 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:42 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:42 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:42 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:42 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:43 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:43 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:44 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:45 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:46 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:3268
(Mon Feb 17 06:44:50 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:50 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:50 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389


-----
With firewall rule and with ad_use_ldaps option in sssd.conf
-----

[sssd]
domains = sssd2016.com
config_file_version = 2
services = nss, pam

[domain/sssd2016.com]
ad_domain = sssd2016.com
krb5_realm = SSSD2016.COM
realmd_tags = manages-system joined-with-adcli 
cache_credentials = True
id_provider = ad
krb5_store_password_if_offline = True
default_shell = /bin/bash
ldap_id_mapping = True
use_fully_qualified_names = True
fallback_homedir = /home/%u@%d
access_provider = ad
debug_level = 9
ad_use_ldaps = True


[root@ipaqavma ~]# systemctl stop sssd; rm -rf /var/lib/sss/db/* ; rm -rf /var/log/sssd/sssd; systemctl start sssd
[root@ipaqavma ~]# date;id administrator
Mon Feb 17 06:48:40 EST 2020
uid=1999200500(administrator) gid=1999200513(domain users) groups=1999200513(domain users),1999200512(domain admins),1999226683(parent_group-3470826),1999200572(denied rodc password replication group),1999200518(schema admins),1999200520(group policy creator owners),1999200519(enterprise admins),1999226734(parent_group-3471746)

 ~]# egrep sdap_print_server /var/log/sssd/sssd_sssd2016.com.log |uniq
(Mon Feb 17 06:44:35 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:36 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.161:389
(Mon Feb 17 06:44:39 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:42 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:43 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:44 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:45 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:46 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:3268
(Mon Feb 17 06:44:50 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:51 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:3268
(Mon Feb 17 06:44:51 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:44:52 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:3268
(Mon Feb 17 06:44:53 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:3268
(Mon Feb 17 06:44:54 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:3268
(Mon Feb 17 06:44:55 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:3268
(Mon Feb 17 06:44:56 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:389
(Mon Feb 17 06:47:12 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:636
(Mon Feb 17 06:47:15 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:636
(Mon Feb 17 06:47:18 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:636
(Mon Feb 17 06:47:19 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:636
(Mon Feb 17 06:47:20 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:636
(Mon Feb 17 06:47:21 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:636
(Mon Feb 17 06:47:23 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:3269
(Mon Feb 17 06:47:27 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:636
(Mon Feb 17 06:47:28 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:636
(Mon Feb 17 06:47:28 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:3269
(Mon Feb 17 06:47:28 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:636
(Mon Feb 17 06:47:29 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:3269
(Mon Feb 17 06:47:30 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:3269
(Mon Feb 17 06:47:31 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:3269
(Mon Feb 17 06:47:32 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:3269
(Mon Feb 17 06:47:33 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:636
(Mon Feb 17 06:48:13 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:636
(Mon Feb 17 06:48:15 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:636
(Mon Feb 17 06:48:21 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:636
(Mon Feb 17 06:48:40 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:636
(Mon Feb 17 06:48:43 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:636
(Mon Feb 17 06:48:45 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:3269
(Mon Feb 17 06:48:49 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:636
(Mon Feb 17 06:48:50 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:636
(Mon Feb 17 06:48:50 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:3269
(Mon Feb 17 06:48:50 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:636
(Mon Feb 17 06:48:51 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:636
(Mon Feb 17 06:48:51 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:3269
(Mon Feb 17 06:48:52 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:3269
(Mon Feb 17 06:48:53 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:3269
(Mon Feb 17 06:48:54 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:3269
(Mon Feb 17 06:48:55 2020) [sssd[be[sssd2016.com]]] [sdap_print_server] (0x2000): Searching 10.65.207.18:636



Marking verified
Comment 9 errata-xmlrpc 2020-04-28 16:56:04 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://access.redhat.com/errata/RHBA-2020:1863