Problem authenticating SSL VPN with eDirectory Users

[emaneiro]

Hi

I have set up a SSL VPN on a PA-500 with Pan OS 4.0.7.

The problem is that I cannot log in with certain eDirectory users. I have checked those users are in the same group as the ones that work; that group is the one allowed to log in.

I would appreciate any help on this.

Regards

Emilio M.

[zarina]

What is the authentication error you get?

Run the command: 'tail follow yes mp-log authd.log' and authenticate to the VPN. This output will give you the reason as to why the authentication fails.

[emaneiro]

The output is

May 01 14:51:26 pan_authd_service_req(pan_authd.c:2454): Authd:Trying to remote authenticate user: PruebaVPN
May 01 14:51:26 pan_authd_service_auth_req(pan_authd.c:1098): AUTH Request <'vsys1','VPNSSL-Auth-Sequence','PruebaVPN'>
May 01 14:51:26 pan_authd_handle_nonadmin_auths(pan_authd.c:2146): VPNSSL-Auth-Sequence is an auth sequence
May 01 14:51:26 pan_authd_handle_nonadmin_auths(pan_authd.c:2206): Trying auth profile #1 COA-Local in auth seq
May 01 14:51:26 panauth:user <PruebaVPN,COA-Local,vsys1> is not allowed
May 01 14:51:26 pan_authd_handle_nonadmin_auths(pan_authd.c:2206): Trying auth profile #2 COA-eDir-VPN-SSL in auth seq
May 01 14:51:26 pan_authd_common_authenticate(pan_authd.c:1472): Authenticating user using service /etc/pam.d/pan_ldap_vsys1_:c:o:a-e:dir-:v:p:n-:s:s:l,username PruebaVPN
May 01 14:51:29 pan_authd_authenticate_service(pan_authd.c:648): authentication failed (6)
May 01 14:51:29 authentication failed for user <vsys1,COA-eDir-VPN-SSL,PruebaVPN>
May 01 14:51:29 pan_authd_process_authresult(pan_authd.c:1241): pan_authd_process_authresult: PruebaVPN authresult not auth'ed
May 01 14:51:29 Error: pan_authd_user_auth_failure_alarm_gen(pan_authd_localdb_utils.c:504): failed to prepare sql statement: select * from authseqdb where seqname=? and vsysname=?'
May 01 14:51:29 pan_authd_process_authresult(pan_authd.c:1264): Alarm generation set to: False.
May 01 14:51:29 User 'PruebaVPN' failed authentication.  Reason: Invalid username/password From: 88.18.211.151.
May 01 14:51:29 pan_get_system_cmd_output(pan_cfg_utils.c:3033): executing: /usr/local/bin/sdb -n -r cfg.operational-mode
May 01 14:51:29 pan_authd_generate_system_log(pan_authd.c:827): CC Enabled=False
May 01 14:51:29 pan_get_system_cmd_output(pan_cfg_utils.c:3033): executing: /usr/local/bin/sdb -n -r cfg.operational-mode

But I know the password for that user is correct and other users authenticate correctly

Any ideas?

[emaneiro]

It was an issue with user's password in Novell eDirectory. I finally debugged this with 'ndstrace' and 'ndslogin' in the eDirectory server.

Regards

Emilio M

Ingelan

Sevilla, Spain

[zarina]

Your log does indicate its an invalid username/pwd:

May 01 14:51:29 User 'PruebaVPN' failed authentication.  Reason: Invalid username/password From: 88.18.211.151.

[emaneiro]

After debugging the same problem with another user the problem dissapeared when I changed the user name (CN in this case). I changed one uppercase letter to lowercase... ¡and it worked!

I even changed the user name back to the original value and kept working.

I don't know the reason but changing the user name solves this problem.

Regards

Emilio