Vulnerability Development mailing list archives

Re: /usr/bin/Mail exploit for Slackware 7.0 (mail-slack.c)


From: funkysh () KRIS TOP PL (Janusz Niewiadomski)
Date: Mon, 5 Jun 2000 10:24:21 +0200


On Sun, Jun 04, 2000 at 10:59:13AM -0700, Daniel Jacobowitz wrote:
Well, it does generate a shell on Debian/woody, but Mail has already
dropped priviledges:

drow@quaketop:~% ./mail
type '.' and enter: .
Cc: too long to edit
sh-2.04$ id
uid=1000(drow) gid=1000(drow) groups=1000(drow)

Err..
the only difference is on Slackware:

funkysh@slk:~$ grep mail /etc/group
mail::12:mail

on Debian:
funkysh@deb:~$ grep mail /etc/group
mail::8:mail

Mail on Debian doesn't drop priviledges, exploit code included.

funkysh@deb:~$ gcc -o mailx mailx.c ; ./mailx -7000
Hit '.' to get shell..
.
Cc: too long to edit
sh-2.03$ id
uid=1014(funkysh) gid=8(mail) groups=100(users)

regards.

--
funkySh [ mailto: funkysh () poz supermedia pl funkysh () kris top pl ]
Gdzie zegar ktory wskazuje,.. co myslisz i co czujesz,.. kto wie?
PGP fingerprint  16 A6 A1 D8 AA 8F 85 3C  61 A3 14 49 E8 78 ED A1


<HR NOSHADE>
<UL>
<LI>text/x-csrc attachment: mailx.c
</UL>


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