[GTALUG] cron scripts **BOOM**

[Jamon Camisso]

On 1/9/19 12:46 PM, Jason Shaw via talk wrote:
> darryl, you should be able to look at yum or apt/dpk histories to see 
> if/when cron was updated and possibly gleam some information about 
> who/what did it.
> 
> for debian and ubuntu : 
> https://serverfault.com/questions/175504/how-do-i-get-the-history-of-apt-get-install-on-ubuntu 
<snip
> 
> Certainly sounds like something automatically updated the cron package 
> to me.  Good luck in the forensics.

Sounds bad on all counts. I'm not aware of any bugs in 16.04 that would 
wipe out any crontabs on auto-updates or manual updates. If you're the 
lucky person to discover one, it will definitely require an SRU update 
to the cron package itself.

Does anything show up related to cron in /var/log/apt/*.log as Jason 
pointed out?

What about in syslog and auth.log? Anything there that would show 
something like 'crontab -r' being invoked?

Lastly, are you using any config management tool like puppet, chef, 
salt, ansible, juju, etc.? My immediate reaction upon reading this is to 
cast aspersions at config management - think sorcerer's apprentice and 
all that.

Cheers, Jamon