Re: UUCP

From: Iván Arce (core.lists.exploit-dev@core-sdi.com)
Date: 11/30/01


Message-ID: <01df01c179e0$3a9f05e0$2e58a8c0@ffornicario>
From: Iván Arce <core.lists.exploit-dev@core-sdi.com>
To: <vuln-dev@securityfocus.com>
Subject: Re: UUCP
Date: Fri, 30 Nov 2001 17:47:30 -0300

dunno if its the same thing, OpenBSD's changelog shows a
security fix for uuxqt parsing of command line arguments
on Sept. 11, 2001:

http://www.openbsd.org/errata29.html#uucp

---

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----- Original Message ----- From: Izik <core.lists.exploit-dev@core-sdi.com> Newsgroups: core.lists.exploit-dev To: <vuln-dev@securityfocus.com> Sent: Thursday, November 29, 2001 9:13 AM Subject: UUCP

> Hello > > i've found buffer overflow in uucp. in BSDi platform's > right now i've checked that on: > > BSDI BSD/OS 4.0.1 Kernel #1: Thu Jun 10 15:24:57 PDT 1999 > BSDI BSD/OS 3.0 Kernel #0: Thu Jan 30 13:02:43 MST 1997 > > versions that seems to be vuln are: > > Version: uucp_args.c,v 2.1 1995/02/03 13:22:07 polk Exp > "BSD/OS 4.0 98/06/11" > > Version: uucp_args.c,v 2.1 1995/02/03 13:22:07 polk Exp > "BSD/OS 3.0 97/01/17" > > buffer overflow is based on command line argv. for ex: > > /usr/bin/uucp `perl -e 'print "A" x 900'` `perl -e 'print "A" x 900'` > `perl -e 'print "A" x 356'` > > the ret addr is totaly writable, and it's marked as 352 - 354. > in the thrid buffer (from left to right). > > since uucp is by nature suid. and the ownership is by uucp > i don't see the real profit. what does bother me is that uucp > also got a daemon ... > > Singed. > izik @ http://www.tty64.org >

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