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Cybersecurity
Cron Logs File Permissions
Post 302949807 by rbatte1 on Thursday 16th of July 2015 07:40:41 AM
07-16-2015
Moderator
Some might say that it gives output to read that someone could then try to attack, e.g. you can see the jobs that root runs and you can check to see if you have write privilege to them, effectively allowing to do anything - change passwords, copy SSH keys, delete critical data, copy sensitive data,....... 
The people keeping the restriction might be persuaded to extract the records for the account you are trying to run with. A simple grep would probably do the trick.
They could even schedule it each day with, um, cron I suppose.
Robin
The people keeping the restriction might be persuaded to extract the records for the account you are trying to run with. A simple grep would probably do the trick.
They could even schedule it each day with, um, cron I suppose.
Robin
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LEARN ABOUT REDHAT
cron
CRON(8) System Manager's Manual CRON(8) NAME
cron - daemon to execute scheduled commands (Vixie Cron) SYNOPSIS
cron DESCRIPTION
Cron should be started from /etc/rc or /etc/rc.local. It will return immediately, so you don't need to start it with '&'. Cron searches /var/spool/cron for crontab files which are named after accounts in /etc/passwd; crontabs found are loaded into memory. Cron also searches for /etc/crontab and the files in the /etc/cron.d/ directory, which are in a different format (see crontab(5)). Cron then wakes up every minute, examining all stored crontabs, checking each command to see if it should be run in the current minute. When execut- ing commands, any output is mailed to the owner of the crontab (or to the user named in the MAILTO environment variable in the crontab, if such exists). Additionally, cron checks each minute to see if its spool directory's modtime (or the modtime on /etc/crontab) has changed, and if it has, cron will then examine the modtime on all crontabs and reload those which have changed. Thus cron need not be restarted whenever a crontab file is modified. Note that the Crontab(1) command updates the modtime of the spool directory whenever it changes a crontab. SEE ALSO
crontab(1), crontab(5) AUTHOR
Paul Vixie <paul@vix.com> 4th Berkeley Distribution 20 December 1993 CRON(8)