mirror of
https://github.com/shadow1ng/fscan.git
synced 2025-09-14 14:06:44 +08:00
feat: 实现智能Web服务检测系统
- 扩展Web端口识别范围至40+个常见端口 - 新增HTTP/HTTPS协议智能探测机制 - 实现并发协议检测提升性能 - 添加精确错误分析避免误判 - 完善插件过滤确保Web插件仅在检测到Web服务时执行 - 支持端口模式匹配和响应头分析
This commit is contained in:
parent
0cc29afbeb
commit
338dd60c3e
@ -108,7 +108,8 @@ func (b *BaseScanStrategy) isPluginTypeMatchedByName(pluginName string) bool {
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case FilterLocal:
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return metadata.Category == "local"
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case FilterService:
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return metadata.Category == "service"
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// 服务扫描允许service类型,以及通过智能检测的web类型(在上层逻辑中处理)
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return metadata.Category == "service" || metadata.Category == "web"
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case FilterWeb:
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return metadata.Category == "web"
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default:
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@ -122,6 +123,7 @@ func (b *BaseScanStrategy) isPluginTypeMatched(plugin common.ScanPlugin) bool {
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case FilterLocal:
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return plugin.HasType(common.PluginTypeLocal)
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case FilterService:
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// 服务扫描排除本地插件,允许服务和Web插件
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return !plugin.HasType(common.PluginTypeLocal)
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case FilterWeb:
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return plugin.HasType(common.PluginTypeWeb)
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@ -131,7 +133,7 @@ func (b *BaseScanStrategy) isPluginTypeMatched(plugin common.ScanPlugin) bool {
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}
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// IsPluginApplicableByName 根据插件名称判断是否适用(新方法)
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func (b *BaseScanStrategy) IsPluginApplicableByName(pluginName string, targetPort int, isCustomMode bool) bool {
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func (b *BaseScanStrategy) IsPluginApplicableByName(pluginName string, targetHost string, targetPort int, isCustomMode bool) bool {
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// 自定义模式下运行所有明确指定的插件
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if isCustomMode {
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return true
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@ -143,7 +145,7 @@ func (b *BaseScanStrategy) IsPluginApplicableByName(pluginName string, targetPor
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}
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// 智能Web插件检测:如果是Web插件且检测到Web服务,则包含Web插件
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if b.shouldIncludeWebPlugin(metadata, targetPort) {
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if b.shouldIncludeWebPlugin(metadata, targetHost, targetPort) {
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return true
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}
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@ -162,11 +164,16 @@ func (b *BaseScanStrategy) IsPluginApplicableByName(pluginName string, targetPor
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return false
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}
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// 对于Web插件,即使没有端口限制,也必须通过智能检测才能执行
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if metadata.Category == "web" {
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return false
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}
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return true
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}
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// shouldIncludeWebPlugin 判断是否应该包含Web插件(智能检测)
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func (b *BaseScanStrategy) shouldIncludeWebPlugin(metadata *base.PluginMetadata, targetPort int) bool {
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func (b *BaseScanStrategy) shouldIncludeWebPlugin(metadata *base.PluginMetadata, targetHost string, targetPort int) bool {
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// 只对服务扫描策略启用Web插件智能检测
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if b.filterType != FilterService {
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return false
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@ -187,14 +194,14 @@ func (b *BaseScanStrategy) shouldIncludeWebPlugin(metadata *base.PluginMetadata,
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globalWebDetector = NewWebPortDetector()
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}
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// 检测是否为Web服务(这里暂时只检查常见端口,避免每次都进行HTTP探测)
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return globalWebDetector.IsCommonWebPort(targetPort)
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// 检测是否为Web服务(使用完整的智能检测,包括HTTP协议探测)
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return globalWebDetector.IsWebService(targetHost, targetPort)
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}
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// globalWebDetector Web检测器全局实例
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var globalWebDetector *WebPortDetector
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// IsPluginApplicable 判断插件是否适用(通用实现)
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// IsPluginApplicable 判断插件是否适用(通用实现,传统插件系统)
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func (b *BaseScanStrategy) IsPluginApplicable(plugin common.ScanPlugin, targetPort int, isCustomMode bool) bool {
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// 自定义模式下运行所有明确指定的插件
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if isCustomMode {
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@ -206,6 +213,21 @@ func (b *BaseScanStrategy) IsPluginApplicable(plugin common.ScanPlugin, targetPo
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return false
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}
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// 对于服务扫描中的Web插件,需要进行智能检测(传统插件系统)
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if b.filterType == FilterService && plugin.HasType(common.PluginTypeWeb) {
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// 获取Web检测器实例(延迟初始化)
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if globalWebDetector == nil {
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globalWebDetector = NewWebPortDetector()
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}
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// 注意:传统插件系统无法传递host参数,使用空字符串
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// 这是传统插件系统的限制,新插件系统已经解决了这个问题
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if targetPort > 0 {
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return globalWebDetector.IsWebService("", targetPort)
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}
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return false
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}
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// 对于服务扫描,还需检查端口匹配
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if b.filterType == FilterService {
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// 无端口限制的插件适用于所有端口
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@ -19,7 +19,7 @@ type ScanStrategy interface {
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// 插件管理方法
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GetPlugins() ([]string, bool)
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IsPluginApplicable(plugin common.ScanPlugin, targetPort int, isCustomMode bool) bool
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IsPluginApplicableByName(pluginName string, targetPort int, isCustomMode bool) bool
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IsPluginApplicableByName(pluginName string, targetHost string, targetPort int, isCustomMode bool) bool
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}
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// selectStrategy 根据扫描配置选择适当的扫描策略
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@ -125,7 +125,7 @@ func ExecuteScanTasks(targets []common.HostInfo, strategy ScanStrategy, ch *chan
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}
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// 检查插件是否适用于当前目标
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if strategy.IsPluginApplicableByName(pluginName, targetPort, isCustomMode) {
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if strategy.IsPluginApplicableByName(pluginName, target.Host, targetPort, isCustomMode) {
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executeScanTask(pluginName, target, ch, wg)
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}
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}
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@ -143,7 +143,7 @@ func countApplicableTasks(targets []common.HostInfo, pluginsToRun []string, isCu
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for _, pluginName := range pluginsToRun {
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if GlobalPluginAdapter.PluginExists(pluginName) &&
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strategy.IsPluginApplicableByName(pluginName, targetPort, isCustomMode) {
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strategy.IsPluginApplicableByName(pluginName, target.Host, targetPort, isCustomMode) {
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count++
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}
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}
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@ -1,7 +1,17 @@
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package core
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import (
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"context"
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"crypto/tls"
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"fmt"
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"net"
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"net/http"
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"regexp"
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"strconv"
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"strings"
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"time"
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"github.com/shadow1ng/fscan/common"
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)
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// WebPortDetector Web端口检测器
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@ -10,49 +20,336 @@ type WebPortDetector struct {
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commonWebPorts map[int]bool
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// HTTP检测超时时间
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httpTimeout time.Duration
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// HTTP客户端
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httpClient *http.Client
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// HTTPS客户端
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httpsClient *http.Client
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}
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// NewWebPortDetector 创建Web端口检测器
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func NewWebPortDetector() *WebPortDetector {
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// 定义常见Web端口
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timeout := 3 * time.Second
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// 定义常见Web端口(扩展列表)
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commonPorts := map[int]bool{
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// 标准Web端口
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80: true, // HTTP
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443: true, // HTTPS
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8080: true, // HTTP alternate
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8443: true, // HTTPS alternate
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// 开发服务器端口
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3000: true, // Node.js dev server
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4000: true, // Ruby dev server
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5000: true, // Python dev server
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8000: true, // Development server
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8888: true, // Common dev port
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9000: true, // Common dev port
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9090: true, // Common dev port
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3000: true, // Node.js dev server
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4000: true, // Ruby dev server
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5000: true, // Python dev server
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8081: true, // HTTP alternate
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8082: true, // HTTP alternate
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8083: true, // HTTP alternate
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8084: true, // HTTP alternate
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8085: true, // HTTP alternate
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8086: true, // HTTP alternate
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8087: true, // HTTP alternate
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8088: true, // HTTP alternate
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8089: true, // HTTP alternate
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// Web服务器alternate端口
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8081: true, 8082: true, 8083: true, 8084: true, 8085: true,
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8086: true, 8087: true, 8088: true, 8089: true,
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// 企业级Web端口
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9080: true, // WebSphere
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9443: true, // WebSphere SSL
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7001: true, // WebLogic
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7002: true, // WebLogic SSL
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// 应用服务器端口
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8180: true, // Tomcat alternate
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8181: true, // Tomcat alternate
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8282: true, // Common alternate
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8383: true, // Common alternate
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8484: true, // Common alternate
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8585: true, // Common alternate
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// 代理和负载均衡端口
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3128: true, // Squid proxy
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8008: true, // HTTP proxy
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8118: true, // Privoxy
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// 监控和管理界面
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9200: true, // Elasticsearch
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5601: true, // Kibana
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3001: true, // Grafana alternate
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9091: true, // Prometheus
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}
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// 创建HTTP客户端
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httpClient := &http.Client{
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Timeout: timeout,
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Transport: &http.Transport{
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DialContext: (&net.Dialer{
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Timeout: timeout,
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}).DialContext,
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MaxIdleConns: 10,
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IdleConnTimeout: 30 * time.Second,
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DisableKeepAlives: true,
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MaxConnsPerHost: 5,
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},
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CheckRedirect: func(req *http.Request, via []*http.Request) error {
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return http.ErrUseLastResponse // 不跟随重定向,减少检测时间
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},
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}
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// 创建HTTPS客户端(跳过证书验证)
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httpsClient := &http.Client{
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Timeout: timeout,
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Transport: &http.Transport{
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DialContext: (&net.Dialer{
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Timeout: timeout,
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}).DialContext,
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TLSClientConfig: &tls.Config{
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InsecureSkipVerify: true,
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},
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MaxIdleConns: 10,
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IdleConnTimeout: 30 * time.Second,
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DisableKeepAlives: true,
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MaxConnsPerHost: 5,
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},
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CheckRedirect: func(req *http.Request, via []*http.Request) error {
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return http.ErrUseLastResponse
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},
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}
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return &WebPortDetector{
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commonWebPorts: commonPorts,
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httpTimeout: 2 * time.Second, // 2秒超时,快速检测
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httpTimeout: timeout,
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httpClient: httpClient,
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httpsClient: httpsClient,
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}
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}
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// 已移除未使用的 IsWebService 方法
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// IsWebService 智能检测端口是否运行Web服务
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func (w *WebPortDetector) IsWebService(host string, port int) bool {
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// 1. 快速路径:常见Web端口直接返回true
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if w.IsCommonWebPort(port) {
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common.LogDebug(fmt.Sprintf("端口 %d 是常见Web端口,启用Web插件", port))
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return true
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}
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// 2. 智能路径:对非常见端口进行HTTP协议探测
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common.LogDebug(fmt.Sprintf("对端口 %d 进行智能Web检测", port))
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result := w.detectHTTPService(host, port)
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common.LogDebug(fmt.Sprintf("端口 %d 智能检测结果: %v", port, result))
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return result
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}
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// IsCommonWebPort 检查是否为常见Web端口
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func (w *WebPortDetector) IsCommonWebPort(port int) bool {
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return w.commonWebPorts[port]
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}
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// 已移除未使用的 detectHTTPService 方法
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// detectHTTPService 检测HTTP服务(真正的智能检测)
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func (w *WebPortDetector) detectHTTPService(host string, port int) bool {
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// 创建检测上下文,避免长时间阻塞
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ctx, cancel := context.WithTimeout(context.Background(), w.httpTimeout)
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defer cancel()
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// 已移除未使用的 tryHTTPConnection 方法
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// 并发检测HTTP和HTTPS
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httpChan := make(chan bool, 1)
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httpsChan := make(chan bool, 1)
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// 已移除未使用的 GetCommonWebPorts 方法
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// 检测HTTP
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go func() {
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httpChan <- w.tryHTTPConnection(ctx, host, port, "http")
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}()
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// 检测HTTPS(对于高端口常见)
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go func() {
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httpsChan <- w.tryHTTPConnection(ctx, host, port, "https")
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}()
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// 等待任一协议检测成功
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select {
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case result := <-httpChan:
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if result {
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common.LogDebug(fmt.Sprintf("端口 %d 检测到HTTP服务", port))
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return true
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}
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case <-ctx.Done():
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return false
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}
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select {
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case result := <-httpsChan:
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if result {
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common.LogDebug(fmt.Sprintf("端口 %d 检测到HTTPS服务", port))
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return true
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}
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case <-ctx.Done():
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return false
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}
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return false
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}
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// tryHTTPConnection 尝试HTTP连接
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func (w *WebPortDetector) tryHTTPConnection(ctx context.Context, host string, port int, protocol string) bool {
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// 构造URL
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var url string
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if (port == 80 && protocol == "http") || (port == 443 && protocol == "https") {
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url = fmt.Sprintf("%s://%s", protocol, host)
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} else {
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url = fmt.Sprintf("%s://%s:%d", protocol, host, port)
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}
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// 选择客户端
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var client *http.Client
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if protocol == "https" {
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client = w.httpsClient
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} else {
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client = w.httpClient
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}
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// 发送HEAD请求,最小化网络开销
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req, err := http.NewRequestWithContext(ctx, "HEAD", url, nil)
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if err != nil {
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return false
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}
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req.Header.Set("User-Agent", "fscan-web-detector/2.2")
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req.Header.Set("Accept", "*/*")
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resp, err := client.Do(req)
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if err != nil {
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// 检查错误类型,某些错误也表明是HTTP服务
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return w.analyzeHTTPError(err)
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}
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defer resp.Body.Close()
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// 分析HTTP响应
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return w.analyzeHTTPResponse(resp, url)
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}
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// analyzeHTTPError 分析HTTP错误,判断是否表明存在HTTP服务
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func (w *WebPortDetector) analyzeHTTPError(err error) bool {
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errStr := strings.ToLower(err.Error())
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// 先检查明确的非Web服务错误
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nonWebErrors := []string{
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"connection refused",
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"no such host",
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"network unreachable",
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"timeout",
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"deadline exceeded",
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"connection reset",
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"eof",
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}
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for _, nonWebErr := range nonWebErrors {
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if strings.Contains(errStr, nonWebErr) {
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return false
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}
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}
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// 这些错误表明连接到了HTTP服务器,只是协议或其他问题
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webIndicators := []string{
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"malformed http response",
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"unexpected http response",
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"ssl handshake",
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"certificate",
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"tls",
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"bad request",
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"method not allowed",
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"server gave http response",
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}
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for _, indicator := range webIndicators {
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if strings.Contains(errStr, indicator) {
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return true
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}
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}
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return false
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}
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// analyzeHTTPResponse 分析HTTP响应,判断是否为Web服务
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func (w *WebPortDetector) analyzeHTTPResponse(resp *http.Response, url string) bool {
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// 任何HTTP状态码都表明这是Web服务
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if resp.StatusCode > 0 {
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// 分析响应头获取更多信息
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serverHeader := resp.Header.Get("Server")
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contentType := resp.Header.Get("Content-Type")
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// 记录检测到的Web服务器信息
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if serverHeader != "" {
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common.LogDebug(fmt.Sprintf("检测到Web服务器: %s (Server: %s)", url, serverHeader))
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}
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// 特殊处理:某些非Web服务也会返回HTTP响应
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if w.isNonWebHTTPService(serverHeader, contentType) {
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common.LogDebug(fmt.Sprintf("端口返回HTTP响应但可能不是Web服务: %s", url))
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return false
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}
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return true
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}
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return false
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}
|
||||
|
||||
// isNonWebHTTPService 判断是否为非Web的HTTP服务
|
||||
func (w *WebPortDetector) isNonWebHTTPService(serverHeader, contentType string) bool {
|
||||
// 某些服务使用HTTP协议但不是传统Web服务
|
||||
nonWebServices := []string{
|
||||
"docker",
|
||||
"kubernetes",
|
||||
"consul",
|
||||
"etcd",
|
||||
"vault",
|
||||
"nomad",
|
||||
}
|
||||
|
||||
serverLower := strings.ToLower(serverHeader)
|
||||
for _, service := range nonWebServices {
|
||||
if strings.Contains(serverLower, service) {
|
||||
return true
|
||||
}
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
// GetWebPortRange 获取可能的Web端口范围(用于高级扫描)
|
||||
func (w *WebPortDetector) GetWebPortRange() []int {
|
||||
// 返回扩展的Web端口列表,用于目标发现
|
||||
var ports []int
|
||||
for port := range w.commonWebPorts {
|
||||
ports = append(ports, port)
|
||||
}
|
||||
|
||||
// 添加一些常见的自定义端口范围
|
||||
customRanges := []int{
|
||||
8090, 8091, 8092, 8093, 8094, 8095, 8096, 8097, 8098, 8099,
|
||||
9001, 9002, 9003, 9004, 9005, 9006, 9007, 9008, 9009,
|
||||
10000, 10001, 10002, 10003, 10004, 10005,
|
||||
}
|
||||
|
||||
ports = append(ports, customRanges...)
|
||||
return ports
|
||||
}
|
||||
|
||||
// IsWebPortByPattern 基于端口模式判断是否可能是Web端口
|
||||
func (w *WebPortDetector) IsWebPortByPattern(port int) bool {
|
||||
portStr := strconv.Itoa(port)
|
||||
|
||||
// Web端口的常见模式
|
||||
webPatterns := []*regexp.Regexp{
|
||||
regexp.MustCompile(`^80\d{2}$`), // 80xx
|
||||
regexp.MustCompile(`^90\d{2}$`), // 90xx
|
||||
regexp.MustCompile(`^300\d$`), // 300x
|
||||
regexp.MustCompile(`^[3-9]000$`), // x000
|
||||
regexp.MustCompile(`^1[0-9]000$`), // 1x000
|
||||
}
|
||||
|
||||
for _, pattern := range webPatterns {
|
||||
if pattern.MatchString(portStr) {
|
||||
return true
|
||||
}
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
Loading…
Reference in New Issue
Block a user