World-writable files installed by ports

[Andrew Pantyukhin]

On 9/4/06, Kris Kennaway <kris at obsecurity.org> wrote:
> On Mon, Sep 04, 2006 at 08:48:26PM +0400, Andrew Pantyukhin wrote:
> > On 9/1/06, Andrew Pantyukhin <infofarmer at freebsd.org> wrote:
> > >On 9/1/06, Kris Kennaway <kris at obsecurity.org> wrote:
> > >> On Thu, Aug 31, 2006 at 10:19:24AM -0400, Kris Kennaway wrote:
> > >> > On Thu, Aug 31, 2006 at 06:15:18PM +0400, Andrew Pantyukhin wrote:
> > >> > > Under no circumstances should a port install world-writable
> > >> > > files or directories. In most cases this opens the system to all
> > >> > > kinds of attacks. A simple grep brings the following list of
> > >> > > makefiles to attention. I imagine that samba ports are
> > >> > > somehow justified, as for the other ones, I hope secteam and
> > >> > > committers will do something about them.
> > >> >
> > >> > The install process will warn about this (as well as group writable),
> > >> > so you can also grep for the warning message in the pointyhat logs.
> > >>
> > >> Here's the list of world-writable from the last i386 6.x build:
> > >
> > >Thanks, Kris! I'll be working on patches for some of them
> > >this weekend.
> >
> > Actually... I wonder if maintainers were already notified about
> > this. I prefer to send out mass mail, wait for a little while and
> > go fix some of the ports. Generating individual patches is a
> > bit overstrenuous for me.
>
> I haven't notified them.  Most of those files are harmless though
> (score files for games).  All of the pips* ones probably have a common
> source too.

Well, a most innocent world-writable file can bring a
system down. While that would require a combimation
of other unfortunate circumstances, I believe an attempt
to eliminate one factor is not a lost effort.

BTW, I wonder why www/phpmyfaq is not in your list.