[16355] in bugtraq
Re: RH 6.1 / 6.2 minicom vulnerability
daemon@ATHENA.MIT.EDU (Ben Lull)
Tue Aug 22 18:23:52 2000
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Message-Id: <39A2D8E7.AC296DCB@valleylocal.com>
Date: Tue, 22 Aug 2000 12:47:51 -0700
Reply-To: blull@valleylocal.com
From: Ben Lull <blull@VALLEYLOCAL.COM>
To: BUGTRAQ@SECURITYFOCUS.COM
Slackware 7.0 (minicom 1.82):
plix@technolust:/home/plix> groups
secure wheel xuser plix
plix@technolust:/home/plix> minicom -C foo
minicom: cannot open /dev/ttyS1: Permission denied
plix@technolust:/home/plix> ls -al foo
-rw-r--r-- 1 plix uucp 0 Aug 22 12:36 foo
plix@technolust:/home/plix>
Slackware 7.1 (minicom 1.82.1)
plix@mos:/home/plix> groups
users
plix@mos:/home/plix> minicom -C foo
minicom: cannot open /dev/ttyS1: Permission denied
plix@mos:/home/plix> ls -al foo
-rw-r--r-- 1 plix uucp 0 Aug 22 12:39 foo
-- Yep Slackware too using minicom 1.82 and 1.82.1
Thanks,
Ben Lull
***
* Ben Lull
* Valley Local Internet, Inc.
* Systems Administrator
***
Michal Zalewski wrote:
> On RedHat 6.1 and RedHat 6.2 boxes (I haven't found other
distributions
> vulnerable):
>
> @(#)Minicom V1.83.0 (compiled Mar 7 2000)(c) Miquel van Smoorenburg
>
> [lcamtuf@nimue lcamtuf]$ minicom -C foo
> minicom: there is no global configuration file /etc/minirc.dfl
> Ask your sysadm to create one (with minicom -s).
>
> [lcamtuf@nimue lcamtuf]$ ls -l foo
> -rw-rw-r-- 1 lcamtuf uucp 0 Aug 18 12:21 foo
> ^^ ^^^^
>
> Any file can be created anywhere with uucp privledges - it will follow
> symlinks. Not nice on systems running uucp services.
>
> _______________________________________________________
> Michal Zalewski [lcamtuf@tpi.pl] [tp.internet/security]
> [http://lcamtuf.na.export.pl] <=--=> bash$ :(){ :|:&};:
> =-----=> God is real, unless declared integer. <=-----=
>
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