Crontab files must not have extended ACLs.

From SOLARIS 10 X86 SECURITY TECHNICAL IMPLEMENTATION GUIDE

Associated with IA controls: ECLP-1

Associated with: CCI-000225

SV-26534r1_rule Crontab files must not have extended ACLs.

Vulnerability discussion

To protect the integrity of scheduled system jobs and to prevent malicious modification to these jobs, crontab files must be secured. ACLs on crontab files may provide unauthorized access to the files.

Check content

Check the permissions of the crontab files. # ls -lL /var/spool/cron/crontabs/ If the permissions include a "+", the file has an extended ACL and this is a finding.

Fix text

Remove the extended ACL from the file. # chmod A- [crontab file]

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