Vulnerability Development mailing list archives
Re: UUCP
From: Iván Arce <core.lists.exploit-dev () core-sdi com>
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 --- "Understanding. A cerebral secretion that enables one having it to know a house from a horse by the roof on the house, Its nature and laws have been exhaustively expounded by Locke, who rode a house, and Kant, who lived in a horse." - Ambrose Bierce CORE Security Technologies Iván Arce Co-Founder and CTO PGP Fingerprint: C7A8 ED85 8D7B 9ADC 6836 B25D 207B E78E 2AD1 F65A email : ivan.arce () corest com http://www.corest.com ----- 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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