[SSSD-users] SSH - sssd: PAM: do_pam_account pam_acct_mgmt = 6 (Permission denied)

Sterling Sahaydak sterling.sahaydak at pi-coral.com
Wed Apr 29 16:23:01 UTC 2015


Solved my issue!

The key wasn't from the messages running sssd using:  /usr/sbin/sssd  -D 
-ddd and reading what was sent to screen.

Instead it was looking within the sssd_LDAP.log file itself:

(Wed Apr 29 11:42:58 2015) [sssd[be[LDAP]]] [sdap_access_filter_send] 
(0x0400): No filter set.
(Wed Apr 29 11:42:58 2015) [sssd[be[LDAP]]] [sdap_access_done] (0x0400): 
Access was denied.

The ldap_access_filter set to:

ldap_access_filter = ou=example,dc=ad,dc=example,dc=com

Appears this is not a filter.

To resolve, changed it to use:

ldap_access_filter = 
memberof=cn=groupname,ou=groups,dc=ad,dc=example,dc=com

The documentation is a little vague for ldap_access_filter as to what 
qualifies clearly as a filter.


malformed filter in the code didn't appear to get triggered?


Thanks again to Jakub and Sumit for taking the time to help!!!




------ Original Message ------
From: "Sumit Bose" <sbose at redhat.com>
To: "Sterling Sahaydak" <sterling.sahaydak at pi-coral.com>; "End-user 
discussions about the System Security Services Daemon" 
<sssd-users at lists.fedorahosted.org>
Sent: 4/28/2015 12:03:29 PM
Subject: Re: [SSSD-users] SSH - sssd: PAM: do_pam_account pam_acct_mgmt 
= 6 (Permission denied)

>On Tue, Apr 28, 2015 at 03:11:09PM +0000, Sterling Sahaydak wrote:
>>  I'm setup in Centos 6.6 with sssd 1.11.6 using openldap and openldap 
>>proxy
>>  to Active Directory.
>>
>>  I have working getent passwd <username> and getent group <group 
>>name>, id
>>  <username> etc. not a problem.
>>
>>  So, trying to get ssh to work as well.
>>
>>
>>  *** I keep running in the issue:
>>
>>  "PAM: do_pam_account pam_acct_mgmt = 6 (Permission denied)"
>>
>>  and unclear of how to resolve this!
>>
>>  I've listed below:
>>
>>  *sssd.conf
>>  *password-auth-ac
>>  *sshd
>>  *sshd log
>>
>>
>>
>>  Any help/suggestions is GREATLY appreciated!!!
>>
>>  Sterling
>>
>>
>>  sssd.conf:
>>
>>  [root at ldap sssd]# cat sssd.conf
>>  [domain/default]
>>
>>  ldap_id_use_start_tls = True
>>  cache_credentials = True
>>  ldap_search_base = dc=example,dc=com
>>  id_provider = ldap
>>  auth_provider = ldap
>>  chpass_provider = ldap
>>  ldap_uri = ldaps://ldap.va.example.com
>>  ldap_tls_cacertdir = /etc/pki/tls/certs
>>
>>  [sssd]
>>  config_file_version = 2
>>  services = nss, pam, sudo
>>  domains = LDAP
>>
>>  [nss]
>>  filter_users = root
>>  filter_groups = root
>>
>>  [pam]
>>
>>  [sudo]
>>
>>
>>  [domain/LDAP]
>>  access_provider = ldap
>>  auth_provider = ldap
>>  chpass_provider = ldap
>>  id_provider = ldap
>>  sudo_provider = ldap
>>  debug_level = 9
>>  cache_credentials = true
>>  enumerate = false
>>
>>
>>  ldap_uri = ldaps://ad-va.ad.example.com
>>  ldap_default_bind_dn =
>>  cn=accessacct,ou=serviceaccounts,ou=example,dc=ad,dc=example,dc=com
>>  ldap_default_authtok_type = password
>>  ldap_default_authtok = <password here!>
>>
>>
>>  ldap_access_filter = ou=example,dc=ad,dc=example,dc=com
>
>Please check the ldap_access_filter entry in the sssd-ldap man page. 
>The
>value of the option it put into a LDAP search filter, what you have
>given is a LDAP DN. I would suggest to try with
>
>access_provider = permit
>
>first, which always allows access and then try to restrict access with 
>a
>different access provider. Besides the LDAP access provider you might
>want to consider the simple access provider for a start as well.
>
>That said, log files as Jakub already mentioned, are always useful to
>identify your issue even more closely.
>
>HTH
>
>bye,
>Sumit
>
>
>>  ldap_search_base = dc=ad,dc=example,dc=com
>>
>>  ldap_schema = rfc2307bis
>>
>>  ldap_user_principal = userPrincipalName
>>  ldap_user_fullname = displayName
>>  ldap_user_name = sAMAccountName
>>  ldap_user_object_class = user
>>  ldap_user_home_directory = unixHomeDirectory
>>  ldap_user_shell = loginShell
>>  ldap_user_uid_number = uidNumber
>>  ldap_user_objectsid = objectSid
>>
>>  ldap_group_object_class = group
>>  ldap_group_objectsid = objectSid
>>  ldap_group_member = member
>>
>>  ldap_sudo_search_base = ou=sudoers,dc=ad,dc=example,dc=com
>>
>>
>>  ldap_tls_cacert = /etc/pki/tls/certs/certificatename.crt
>>
>>
>>  [root at ldap pam.d]# cat password-auth-ac
>>  #%PAM-1.0
>>  # This file is auto-generated.
>>  # User changes will be destroyed the next time authconfig is run.
>>  auth        required      pam_env.so
>>  auth        sufficient    pam_unix.so nullok try_first_pass
>>  auth        requisite     pam_succeed_if.so uid >= 500 quiet
>>  auth        sufficient    pam_sss.so use_first_pass
>>  auth        required      pam_deny.so
>>
>>  account     required      pam_unix.so broken_shadow
>>  account     sufficient    pam_localuser.so
>>  account     sufficient    pam_succeed_if.so uid < 500 quiet
>>  account     [default=bad success=ok user_unknown=ignore] pam_sss.so
>>  account     required      pam_permit.so
>>
>>  password    requisite     pam_cracklib.so try_first_pass retry=3
>>  password    sufficient    pam_unix.so sha512 shadow nullok 
>>try_first_pass
>>  use_authtok
>>  password    sufficient    pam_sss.so use_authtok
>>  password    required      pam_deny.so
>>
>>  session     optional      pam_keyinit.so revoke
>>  session     required      pam_limits.so
>>  session     optional      pam_mkhomedir.so umask=0022 skel=/etc/skel/
>>  session     [success=1 default=ignore] pam_succeed_if.so service in 
>>crond
>>  quiet use_uid
>>  session     optional      pam_sss.so
>>  session     required      pam_unix.so
>>
>>
>>
>>  [root at ldap pam.d]# cat sshd
>>  #%PAM-1.0
>>  auth       required     pam_sepermit.so
>>  auth       include      password-auth
>>  account    required     pam_nologin.so
>>  account    include      password-auth
>>  password   include      password-auth
>>  session    required     pam_selinux.so close
>>  session    required     pam_loginuid.so
>>  session    required     pam_mkhomedir.so umask=0022 skel=/etc/skel/
>>  session    required     pam_selinux.so open env_params
>>  session    optional     pam_keyinit.so force revoke
>>  session    include      password-auth
>>
>>
>>  Here is my log:
>>
>>  [root at ldap ~]# /usr/sbin/sshd -D -ddd
>>  debug2: load_server_config: filename /etc/ssh/sshd_config
>>  debug2: load_server_config: done config len = 602
>>  debug2: parse_server_config: config /etc/ssh/sshd_config len 602
>>  debug3: /etc/ssh/sshd_config:21 setting Protocol 2
>>  debug3: /etc/ssh/sshd_config:36 setting SyslogFacility AUTHPRIV
>>  debug3: /etc/ssh/sshd_config:43 setting PermitRootLogin 
>>without-password
>>  debug3: /etc/ssh/sshd_config:65 setting PasswordAuthentication yes
>>  debug3: /etc/ssh/sshd_config:71 setting 
>>ChallengeResponseAuthentication no
>>  debug3: /etc/ssh/sshd_config:74 setting KerberosAuthentication no
>>  debug3: /etc/ssh/sshd_config:81 setting GSSAPIAuthentication no
>>  debug3: /etc/ssh/sshd_config:98 setting UsePAM yes
>>  debug3: /etc/ssh/sshd_config:101 setting AcceptEnv LANG LC_CTYPE 
>>LC_NUMERIC
>>  LC_TIME LC_COLLATE LC_MONETARY LC_MESSAG
>>  debug3: /etc/ssh/sshd_config:102 setting AcceptEnv LC_PAPER LC_NAME
>>  LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT
>>  debug3: /etc/ssh/sshd_config:103 setting AcceptEnv LC_IDENTIFICATION 
>>LC_ALL
>>  LANGUAGE
>>  debug3: /etc/ssh/sshd_config:104 setting AcceptEnv XMODIFIERS
>>  debug3: /etc/ssh/sshd_config:109 setting X11Forwarding no
>>  debug3: /etc/ssh/sshd_config:133 setting Subsystem sftp
>>  /usr/libexec/openssh/sftp-server
>>  debug3: /etc/ssh/sshd_config:140 setting UseDNS no
>>  debug1: sshd version OpenSSH_5.3p1
>>  debug3: Not a RSA1 key file /etc/ssh/ssh_host_rsa_key.
>>  debug1: read PEM private key done: type RSA
>>  debug1: private host key: #0 type 1 RSA
>>  debug3: Not a RSA1 key file /etc/ssh/ssh_host_dsa_key.
>>  debug1: read PEM private key done: type DSA
>>  debug1: private host key: #1 type 2 DSA
>>  debug1: rexec_argv[0]='/usr/sbin/sshd'
>>  debug1: rexec_argv[1]='-D'
>>  debug1: rexec_argv[2]='-ddd'
>>  debug3: oom_adjust_setup
>>  Set /proc/self/oom_score_adj from 0 to -1000
>>  debug2: fd 3 setting O_NONBLOCK
>>  debug1: Bind to port 22 on 0.0.0.0.
>>  Server listening on 0.0.0.0 port 22.
>>  debug2: fd 4 setting O_NONBLOCK
>>  debug1: Bind to port 22 on ::.
>>  Server listening on :: port 22.
>>  debug3: fd 5 is not O_NONBLOCK
>>  debug1: Server will not fork when running in debugging mode.
>>  debug3: send_rexec_state: entering fd = 8 config len 602
>>  debug3: ssh_msg_send: type 0
>>  debug3: send_rexec_state: done
>>  debug1: rexec start in 5 out 5 newsock 5 pipe -1 sock 8
>>  debug1: inetd sockets after dupping: 3, 3
>>  Connection from 10.41.0.145 port 42145
>>  debug1: Client protocol version 2.0; client software version 
>>OpenSSH_5.3
>>  debug1: match: OpenSSH_5.3 pat OpenSSH*
>>  debug1: Enabling compatibility mode for protocol 2.0
>>  debug1: Local version string SSH-2.0-OpenSSH_5.3
>>  debug2: fd 3 setting O_NONBLOCK
>>  debug2: Network child is on pid 28180
>>  debug3: preauth child monitor started
>>  debug3: mm_request_receive entering
>>  debug3: privsep user:group 74:74
>>  debug1: permanently_set_uid: 74/74
>>  debug1: list_hostkey_types: ssh-rsa,ssh-dss
>>  debug1: SSH2_MSG_KEXINIT sent
>>  debug3: Wrote 840 bytes for a total of 861
>>  debug1: SSH2_MSG_KEXINIT received
>>  debug2: kex_parse_kexinit: 
>>diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-gr
>>  debug2: kex_parse_kexinit: ssh-rsa,ssh-dss
>>  debug2: kex_parse_kexinit: 
>>aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,c
>>  debug2: kex_parse_kexinit: 
>>aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,c
>>  debug2: kex_parse_kexinit: 
>>hmac-md5,hmac-sha1,umac-64 at openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ri
>>  debug2: kex_parse_kexinit: 
>>hmac-md5,hmac-sha1,umac-64 at openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ri
>>  debug2: kex_parse_kexinit: none,zlib at openssh.com
>>  debug2: kex_parse_kexinit: none,zlib at openssh.com
>>  debug2: kex_parse_kexinit:
>>  debug2: kex_parse_kexinit:
>>  debug2: kex_parse_kexinit: first_kex_follows 0
>>  debug2: kex_parse_kexinit: reserved 0
>>  debug2: kex_parse_kexinit: 
>>diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-gr
>>  debug2: kex_parse_kexinit: 
>>ssh-rsa-cert-v01 at openssh.com,ssh-dss-cert-v01 at openssh.com,ssh-rsa-cert-v00 at openssh.com,ss
>>  debug2: kex_parse_kexinit: 
>>aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,c
>>  debug2: kex_parse_kexinit: 
>>aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,c
>>  debug2: kex_parse_kexinit: 
>>hmac-md5,hmac-sha1,umac-64 at openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ri
>>  debug2: kex_parse_kexinit: 
>>hmac-md5,hmac-sha1,umac-64 at openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ri
>>  debug2: kex_parse_kexinit: none,zlib at openssh.com,zlib
>>  debug2: kex_parse_kexinit: none,zlib at openssh.com,zlib
>>  debug2: kex_parse_kexinit:
>>  debug2: kex_parse_kexinit:
>>  debug2: kex_parse_kexinit: first_kex_follows 0
>>  debug2: kex_parse_kexinit: reserved 0
>>  debug2: mac_setup: found hmac-md5
>>  debug1: kex: client->server aes128-ctr hmac-md5 none
>>  debug3: mm_request_send entering: type 78
>>  debug3: monitor_read: checking request 78
>>  debug3: mm_request_send entering: type 79
>>  debug3: mm_request_receive entering
>>  debug3: mm_request_receive_expect entering: type 79
>>  debug3: mm_request_receive entering
>>  debug2: mac_setup: found hmac-md5
>>  debug1: kex: server->client aes128-ctr hmac-md5 none
>>  debug3: mm_request_send entering: type 78
>>  debug3: monitor_read: checking request 78
>>  debug3: mm_request_send entering: type 79
>>  debug3: mm_request_receive entering
>>  debug3: mm_request_receive_expect entering: type 79
>>  debug3: mm_request_receive entering
>>  debug1: SSH2_MSG_KEX_DH_GEX_REQUEST received
>>  debug3: mm_request_send entering: type 0
>>  debug3: monitor_read: checking request 0
>>  debug3: mm_answer_moduli: got parameters: 1024 1024 8192
>>  debug3: mm_request_send entering: type 1
>>  debug2: monitor_read: 0 used once, disabling now
>>  debug3: mm_request_receive entering
>>  debug3: mm_choose_dh: waiting for MONITOR_ANS_MODULI
>>  debug3: mm_request_receive_expect entering: type 1
>>  debug3: mm_request_receive entering
>>  debug3: mm_choose_dh: remaining 0
>>  debug1: SSH2_MSG_KEX_DH_GEX_GROUP sent
>>  debug3: Wrote 152 bytes for a total of 1013
>>  debug2: dh_gen_key: priv key bits set: 137/256
>>  debug2: bits set: 484/1024
>>  debug1: expecting SSH2_MSG_KEX_DH_GEX_INIT
>>  debug2: bits set: 518/1024
>>  debug3: mm_key_sign entering
>>  debug3: mm_request_send entering: type 5
>>  debug3: monitor_read: checking request 5
>>  debug3: mm_answer_sign
>>  debug3: mm_answer_sign: signature 0x7f74f925a0d0(271)
>>  debug3: mm_request_send entering: type 6
>>  debug2: monitor_read: 5 used once, disabling now
>>  debug3: mm_request_receive entering
>>  debug3: mm_key_sign: waiting for MONITOR_ANS_SIGN
>>  debug3: mm_request_receive_expect entering: type 6
>>  debug3: mm_request_receive entering
>>  debug1: SSH2_MSG_KEX_DH_GEX_REPLY sent
>>  debug2: kex_derive_keys
>>  debug2: set_newkeys: mode 1
>>  debug1: SSH2_MSG_NEWKEYS sent
>>  debug1: expecting SSH2_MSG_NEWKEYS
>>  debug3: Wrote 720 bytes for a total of 1733
>>  debug2: set_newkeys: mode 0
>>  debug1: SSH2_MSG_NEWKEYS received
>>  debug1: KEX done
>>  debug3: Wrote 48 bytes for a total of 1781
>>  debug1: userauth-request for user abrown service ssh-connection 
>>method none
>>  debug1: attempt 0 failures 0
>>  debug3: mm_getpwnamallow entering
>>  debug3: mm_request_send entering: type 7
>>  debug3: mm_getpwnamallow: waiting for MONITOR_ANS_PWNAM
>>  debug3: mm_request_receive_expect entering: type 8
>>  debug3: mm_request_receive entering
>>  debug3: monitor_read: checking request 7
>>  debug3: mm_answer_pwnamallow
>>  debug2: parse_server_config: config reprocess config len 602
>>  debug3: mm_answer_pwnamallow: sending MONITOR_ANS_PWNAM: 1
>>  debug3: mm_request_send entering: type 8
>>  debug2: monitor_read: 7 used once, disabling now
>>  debug3: mm_request_receive entering
>>  debug2: input_userauth_request: setting up authctxt for abrown
>>  debug3: mm_start_pam entering
>>  debug3: mm_request_send entering: type 50
>>  debug3: mm_inform_authserv entering
>>  debug3: mm_request_send entering: type 3
>>  debug3: mm_inform_authrole entering
>>  debug3: mm_request_send entering: type 4
>>  debug2: input_userauth_request: try method none
>>  debug3: Wrote 64 bytes for a total of 1845
>>  debug3: monitor_read: checking request 50
>>  debug1: PAM: initializing for "abrown"
>>  debug1: PAM: setting PAM_RHOST to "10.41.0.145"
>>  debug1: PAM: setting PAM_TTY to "ssh"
>>  debug2: monitor_read: 50 used once, disabling now
>>  debug3: mm_request_receive entering
>>  debug3: monitor_read: checking request 3
>>  debug3: mm_answer_authserv: service=ssh-connection, style=
>>  debug2: monitor_read: 3 used once, disabling now
>>  debug3: mm_request_receive entering
>>  debug3: monitor_read: checking request 4
>>  debug3: mm_answer_authrole: role=
>>  debug2: monitor_read: 4 used once, disabling now
>>  debug3: mm_request_receive entering
>>  debug1: userauth-request for user abrown service ssh-connection 
>>method
>>  password
>>  debug1: attempt 1 failures 0
>>  debug2: input_userauth_request: try method password
>>  debug3: mm_auth_password entering
>>  debug3: mm_request_send entering: type 11
>>  debug3: mm_auth_password: waiting for MONITOR_ANS_AUTHPASSWORD
>>  debug3: mm_request_receive_expect entering: type 12
>>  debug3: mm_request_receive entering
>>  debug3: monitor_read: checking request 11
>>  debug3: PAM: sshpam_passwd_conv called with 1 messages
>>  debug1: PAM: password authentication accepted for abrown
>>  debug3: mm_answer_authpassword: sending result 1
>>  debug3: mm_request_send entering: type 12
>>  debug3: mm_request_receive_expect entering: type 51
>>  debug3: mm_request_receive entering
>>  debug3: mm_auth_password: user authenticated
>>  debug3: mm_do_pam_account entering
>>  debug3: mm_request_send entering: type 51
>>  debug3: mm_request_receive_expect entering: type 52
>>  debug3: mm_request_receive entering
>>  debug1: do_pam_account: called
>>  debug3: PAM: do_pam_account pam_acct_mgmt = 6 (Permission denied)
>>  debug3: mm_request_send entering: type 52
>>  Failed password for abrown from 10.41.0.145 port 42145 ssh2
>>  debug3: mm_do_pam_account returning 0
>>  Access denied for user abrown by PAM account configuration
>>  debug1: do_cleanup
>>  debug3: PAM: sshpam_thread_cleanup entering
>>  debug3: mm_request_send entering: type 80
>>  debug3: mm_request_receive_expect entering: type 81
>>  debug3: mm_request_receive entering
>>  debug3: mm_request_receive entering
>>  debug3: monitor_read: checking request 80
>>  debug3: mm_request_send entering: type 81
>>  debug3: mm_request_receive entering
>>  debug1: do_cleanup
>>  debug1: PAM: cleanup
>>  debug3: PAM: sshpam_thread_cleanup entering
>
>>  _______________________________________________
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>>  sssd-users at lists.fedorahosted.org
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>



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