User cannot access crontab

Oracle Linux 5.10

Root user can access crontrab, but not any other user. There is no /etc/cron.allow and the /etc/cron.deny is an empty file.

Using Oracle user account:

[oracle@dub-ImrORA2 ~]$ crontab -e

Authentication failure You (oracle) are not allowed to access to (crontab) because of pam configuration.

/etc/pam.d/crond listing:

auth sufficient pam_env.so

auth required pam_rootok.so

auth include system-auth

account required pam_access.so

account include system-auth

session required pam_loginuid.so

session include system-auth

crond is running

[root@dub-ImrORA2 pam.d]# ps -aef | grep cron root 3559 1 0 Jan29 ? 00:00:05 crond root 25518 25279 0 13:19 pts/2 00:00:00 grep cron

Permissions on crontab

[root@dub-ImrORA2 ]# ls -al /usr/bin/crontab -rwxr-xr-x 1 root root 315640 Dec 20 2011 /usr/bin/crontab

Permission on /var/spool/cron/oracle

[root@dub-ImrORA2 ]# ls -al /var/spool/cron/oracle -rw------- 1 root root 125 Feb 24 11:43 /var/spool/cron/oracle