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

Re: rdist exploit [bsdi]

Andy Dills (andybigdog.fred.net)
Sun, 14 Jul 1996 00:46:24 -0400 

On Sat, 13 Jul 1996, Andrew N. Edmond wrote:

> > > > > 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

Bit 'streme :>

I just chmod'ed it 0550.

Andy

(Oh, FYI, I got it to work on two FreeBSD 2.1.0-Stable systems.)

> .............................................................................
> .  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 .........................................
>
> -----BEGIN PGP PUBLIC KEY BLOCK-----
> Version: 2.6.2
>
> mQCNAzGauk0AAAEEANjORiZVrD98GS+vkJv+36CLC5Agifk8ra61i3i+Ms2115uK
> 9WoeUBA2J9QkjG+dM6tEOkPtrnZFkahFbOsDT0Rh46eBktdAp7IXY5M2zN4r1bWt
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> tCJBbmRyZXcgRWRtb25kIDxlZG1vbmRAbHljYWV1bS5vcmc+tBBBbmRyZXcgTi4g
> RWRtb25k
> =l080
> -----END PGP PUBLIC KEY BLOCK-----
>

--

Crap. My .sig is missing in action.