[stunnel-users] privileges not dropped before libwrap processes are spawned
Michal Trojnara
Michal.Trojnara at mirt.net
Mon Dec 21 22:04:02 CET 2009
Micah Anderson wrote:
> and then soon after, you released a version 4.25 of stunnel, with this
> changelog entry:
>
> * Bugfixes
> - Spawning libwrap processes delayed until privileges are
> dropped.
>
> but we do not see the libwrap processes spawned as anything but the
> privileged user still.
>
> I'm sorry if I am missing something obvious here, and I appreciate
> your
> explanation!
What you're missing is an entry for stunnel 4.26:
> - /etc/hosts.allow and /etc/hosts.deny no longer need to be copied
> to the chrooted directory, as the libwrap processes are no longer
> chrooted.
Basically I received some complaints and I decided to withdraw this
modification. Chrooting libwrap processes was a bad idea.
Honestly I'm sure libwrap (first released by Wietse Venema in 1990) is
*a lot* more mature and secure compared to OpenSSL. In case there are
any security vulnerabilities in libwrap, stunnel is the least of our
problems...
Mike
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