freebsd security - Mar 2015 - ftpd don't record login in utmpx

Slawa Olhovchenkov <slw at zxy.spb.ru> writes:
> ftpd from FreeBSD-10 and up don't record ftp logins to utmpx database
> (for case of chrooted login).
> This is lack security information.
> I found this is done by r202209 and r202604.
> I can't understand reason of this.
> Can somebody explain?
Having a jail log into the base system is a security issue in the
making. Can't you do this in a safer way by doing remote logging to the
base system rather than having the jail hold on to a file handle that
belongs outside the jail?

It's certainly possible to maintain these kinds of capabilities, but
you would have to convince code reviewers that the same results can't be
achieved some other way that's easier to secure.

On Mon, Mar 30, 2015 at 08:08:49PM -0400, Lowell Gilbert wrote:
> Slawa Olhovchenkov <slw at zxy.spb.ru> writes:
> 
> > ftpd from FreeBSD-10 and up don't record ftp logins to utmpx
database
> > (for case of chrooted login).
> > This is lack security information.
> > I found this is done by r202209 and r202604.
> > I can't understand reason of this.
> > Can somebody explain?
> 
> Having a jail log into the base system is a security issue in the
> making. Can't you do this in a safer way by doing remote logging to the
> base system rather than having the jail hold on to a file handle that
> belongs outside the jail?
Jail? Why I you talk about jail?
> It's certainly possible to maintain these kinds of capabilities, but
> you would have to convince code reviewers that the same results can't
be
> achieved some other way that's easier to secure.
Can you explain some more?
A im lost point.