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Bugtraq archives for 3rd quarter (Jul-Sep) 1996: Re: rdist exploit [bsdi]

Re: rdist exploit [bsdi]

Andrew N. Edmond (edmondshaman.lycaeum.org)
Sat, 13 Jul 1996 01:20:35 -0600 

> > > > Here is a quick bsd/os (should work in freebsd too, I believe) exploitation
> > > > script for the rdist buffer overflow vulnerbility.
> > >
> > >     Confirmed for FreeBSD 2.1.0-RELEASE, 2.2-960501-SNAP and
> > > 2.2-960601-SNAP.  Haven't tried it with the 2.1.5 release stream yet.

Agreed, another confirmation that this exploit works on 2.1.0-RELEASE.  I
temporarily fixed the problem by doing (this may be overboard, but I am
getting paranoid with all these BSD holes lately!) the following:

chflags noschg /usr/bin/rdist    # must take off immutable flag!
chmod 000 /usr/bin/rdist         # wipe all functionality from this prog

Looking forward to a source patch, for sure!

Andy

.............................................................................
.  Andrew Edmond              .   Children of a future age,                 .
..  edmondlycaeum.org       ...   Reading this indignant page,            ..
...  University of Wyoming  .....   Know that in a former time,           ...
....  Botany Department    .......   A path to God was thought a crime.  ....
....................... the Lycaeum .........................................

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