nanog mailing list archives

Re: Linux: concerns over systemd adoption and Debian's decision to switch


From: John Schiel <jschiel () flowtools net>
Date: Wed, 22 Oct 2014 14:22:58 -0600


On 10/22/2014 01:30 PM, Valdis.Kletnieks () vt edu wrote:
On Wed, 22 Oct 2014 13:13:29 -0600, John Schiel said:

i was beginning to wonder how secure systemd is also.
One of the 3 CIA pillars of security is "availability".  And if
it's oh-dark-30, figuring out what symlink is supposed to be where
for a given failed systemd unit can be a tad challenging.  At least under
sysvinit, either /etc/rc5.d/S50foobar is there or it isn't(*).

And if they carry through on their systemd-console threat, that could get
even worse - that introduces a whole new pile of risks for being unable
to diagnose early boot bugs

So yeah, there's security issues other than "can it be hacked because
it's got a huge surface area".

Agreed, the "oh-dark-thirty" call outs will be harder to resolve but I'm sure some folks will learn to deal with it. It's new and changes the job but as was noted earlier, there is always change.

My concern is with the "large surface area". Does that expose the daemon to more vulnerabilities because it does more or does one daemon make it easier to protect against multiple vulnerabilities? I don't know, that's where the research needs to be done.

--John


(*) Unless you're really having a bad night and it's a hard link to /dev/sda1
or something. :)


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