mirror of
https://github.com/shadow1ng/fscan.git
synced 2025-09-14 14:06:44 +08:00
361 lines
8.9 KiB
Go
361 lines
8.9 KiB
Go
package Plugins
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import (
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"context"
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"fmt"
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"strings"
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"sync"
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"time"
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"github.com/neo4j/neo4j-go-driver/v4/neo4j"
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"github.com/shadow1ng/fscan/Common"
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)
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// Neo4jCredential 表示一个Neo4j凭据
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type Neo4jCredential struct {
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Username string
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Password string
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}
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// Neo4jScanResult 表示Neo4j扫描结果
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type Neo4jScanResult struct {
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Success bool
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Error error
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Credential Neo4jCredential
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IsUnauth bool
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IsDefaultCreds bool
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}
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func Neo4jScan(info *Common.HostInfo) error {
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if Common.DisableBrute {
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return nil
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}
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target := fmt.Sprintf("%v:%v", info.Host, info.Ports)
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Common.LogDebug(fmt.Sprintf("开始扫描 %s", target))
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// 设置全局超时上下文
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ctx, cancel := context.WithTimeout(context.Background(), time.Duration(Common.GlobalTimeout)*time.Second)
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defer cancel()
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// 初始检查列表 - 无认证和默认凭证
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initialCredentials := []Neo4jCredential{
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{"", ""}, // 无认证
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{"neo4j", "neo4j"}, // 默认凭证
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}
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// 先检查无认证和默认凭证
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Common.LogDebug("尝试默认凭证...")
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for _, credential := range initialCredentials {
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Common.LogDebug(fmt.Sprintf("尝试: %s:%s", credential.Username, credential.Password))
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result := tryNeo4jCredential(ctx, info, credential, Common.Timeout, 1)
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if result.Success {
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// 标记结果类型
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if credential.Username == "" && credential.Password == "" {
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result.IsUnauth = true
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} else {
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result.IsDefaultCreds = true
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}
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// 保存结果
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saveNeo4jResult(info, target, result)
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return nil
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}
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}
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// 构建凭据列表
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var credentials []Neo4jCredential
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for _, user := range Common.Userdict["neo4j"] {
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for _, pass := range Common.Passwords {
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actualPass := strings.Replace(pass, "{user}", user, -1)
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credentials = append(credentials, Neo4jCredential{
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Username: user,
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Password: actualPass,
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})
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}
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}
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Common.LogDebug(fmt.Sprintf("开始尝试用户名密码组合 (总用户数: %d, 总密码数: %d, 总组合数: %d)",
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len(Common.Userdict["neo4j"]), len(Common.Passwords), len(credentials)))
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// 使用工作池并发扫描
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result := concurrentNeo4jScan(ctx, info, credentials, Common.Timeout, Common.MaxRetries)
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if result != nil {
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// 记录成功结果
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saveNeo4jResult(info, target, result)
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return nil
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}
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// 检查是否因为全局超时而退出
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select {
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case <-ctx.Done():
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Common.LogDebug("Neo4j扫描全局超时")
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return fmt.Errorf("全局超时")
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default:
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Common.LogDebug(fmt.Sprintf("扫描完成，共尝试 %d 个组合", len(credentials)+len(initialCredentials)))
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return nil
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}
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}
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// concurrentNeo4jScan 并发扫描Neo4j服务
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func concurrentNeo4jScan(ctx context.Context, info *Common.HostInfo, credentials []Neo4jCredential, timeoutSeconds int64, maxRetries int) *Neo4jScanResult {
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// 使用ModuleThreadNum控制并发数
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maxConcurrent := Common.ModuleThreadNum
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if maxConcurrent <= 0 {
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maxConcurrent = 10 // 默认值
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}
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if maxConcurrent > len(credentials) {
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maxConcurrent = len(credentials)
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}
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// 创建工作池
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var wg sync.WaitGroup
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resultChan := make(chan *Neo4jScanResult, 1)
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workChan := make(chan Neo4jCredential, maxConcurrent)
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scanCtx, scanCancel := context.WithCancel(ctx)
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defer scanCancel()
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// 启动工作协程
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for i := 0; i < maxConcurrent; i++ {
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wg.Add(1)
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go func() {
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defer wg.Done()
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for credential := range workChan {
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select {
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case <-scanCtx.Done():
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return
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default:
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result := tryNeo4jCredential(scanCtx, info, credential, timeoutSeconds, maxRetries)
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if result.Success {
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select {
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case resultChan <- result:
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scanCancel() // 找到有效凭据，取消其他工作
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default:
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}
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return
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}
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}
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}
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}()
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}
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// 发送工作
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go func() {
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for i, cred := range credentials {
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select {
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case <-scanCtx.Done():
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break
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default:
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Common.LogDebug(fmt.Sprintf("[%d/%d] 尝试: %s:%s", i+1, len(credentials), cred.Username, cred.Password))
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workChan <- cred
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}
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}
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close(workChan)
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}()
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// 等待结果或完成
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go func() {
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wg.Wait()
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close(resultChan)
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}()
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// 获取结果，考虑全局超时
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select {
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case result, ok := <-resultChan:
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if ok && result != nil && result.Success {
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return result
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}
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return nil
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case <-ctx.Done():
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Common.LogDebug("Neo4j并发扫描全局超时")
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scanCancel() // 确保取消所有未完成工作
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return nil
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}
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}
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// tryNeo4jCredential 尝试单个Neo4j凭据
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func tryNeo4jCredential(ctx context.Context, info *Common.HostInfo, credential Neo4jCredential, timeoutSeconds int64, maxRetries int) *Neo4jScanResult {
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var lastErr error
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for retry := 0; retry < maxRetries; retry++ {
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select {
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case <-ctx.Done():
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return &Neo4jScanResult{
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Success: false,
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Error: fmt.Errorf("全局超时"),
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Credential: credential,
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}
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default:
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if retry > 0 {
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Common.LogDebug(fmt.Sprintf("第%d次重试: %s:%s", retry+1, credential.Username, credential.Password))
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time.Sleep(500 * time.Millisecond) // 重试前等待
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}
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// 创建连接结果通道
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resultChan := make(chan struct {
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success bool
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err error
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}, 1)
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// 在协程中尝试连接
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connCtx, cancel := context.WithTimeout(ctx, time.Duration(timeoutSeconds)*time.Second)
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go func() {
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defer cancel()
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success, err := Neo4jConn(info, credential.Username, credential.Password)
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select {
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case <-connCtx.Done():
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case resultChan <- struct {
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success bool
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err error
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}{success, err}:
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}
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}()
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// 等待结果或超时
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var success bool
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var err error
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select {
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case result := <-resultChan:
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success = result.success
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err = result.err
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case <-connCtx.Done():
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if ctx.Err() != nil {
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// 全局超时
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return &Neo4jScanResult{
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Success: false,
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Error: ctx.Err(),
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Credential: credential,
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}
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}
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// 单个连接超时
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err = fmt.Errorf("连接超时")
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}
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if success {
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return &Neo4jScanResult{
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Success: true,
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Credential: credential,
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}
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}
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lastErr = err
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if err != nil {
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// 检查是否需要重试
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if retryErr := Common.CheckErrs(err); retryErr == nil {
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break // 不需要重试的错误
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}
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}
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}
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}
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return &Neo4jScanResult{
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Success: false,
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Error: lastErr,
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Credential: credential,
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}
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}
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// Neo4jConn 尝试Neo4j连接
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func Neo4jConn(info *Common.HostInfo, user string, pass string) (bool, error) {
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host, port := info.Host, info.Ports
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timeout := time.Duration(Common.Timeout) * time.Second
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// 构造Neo4j URL
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uri := fmt.Sprintf("bolt://%s:%s", host, port)
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// 配置驱动选项
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config := func(c *neo4j.Config) {
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c.SocketConnectTimeout = timeout
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c.ConnectionAcquisitionTimeout = timeout
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// 注意：Neo4j驱动可能不支持代理配置
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// 如果需要代理支持，可能需要使用更底层的连接方式
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}
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var driver neo4j.Driver
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var err error
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// 尝试建立连接
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if user != "" || pass != "" {
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// 有认证信息时使用认证
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driver, err = neo4j.NewDriver(uri, neo4j.BasicAuth(user, pass, ""), config)
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} else {
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// 无认证时使用NoAuth
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driver, err = neo4j.NewDriver(uri, neo4j.NoAuth(), config)
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}
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if err != nil {
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return false, err
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}
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defer driver.Close()
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// 测试连接有效性
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err = driver.VerifyConnectivity()
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if err != nil {
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return false, err
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}
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// 尝试执行简单查询以确认权限
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session := driver.NewSession(neo4j.SessionConfig{AccessMode: neo4j.AccessModeRead})
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defer session.Close()
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_, err = session.Run("MATCH (n) RETURN count(n) LIMIT 1", nil)
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if err != nil {
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return false, err
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}
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return true, nil
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}
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// saveNeo4jResult 保存Neo4j扫描结果
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func saveNeo4jResult(info *Common.HostInfo, target string, result *Neo4jScanResult) {
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var successMsg string
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var details map[string]interface{}
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if result.IsUnauth {
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// 无认证访问
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successMsg = fmt.Sprintf("Neo4j服务 %s 无需认证即可访问", target)
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details = map[string]interface{}{
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"port": info.Ports,
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"service": "neo4j",
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"type": "unauthorized-access",
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}
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} else if result.IsDefaultCreds {
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// 默认凭证
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successMsg = fmt.Sprintf("Neo4j服务 %s 默认凭证可用 用户名: %s 密码: %s",
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target, result.Credential.Username, result.Credential.Password)
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details = map[string]interface{}{
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"port": info.Ports,
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"service": "neo4j",
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"type": "default-credentials",
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"username": result.Credential.Username,
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"password": result.Credential.Password,
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}
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} else {
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// 弱密码
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successMsg = fmt.Sprintf("Neo4j服务 %s 爆破成功 用户名: %s 密码: %s",
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target, result.Credential.Username, result.Credential.Password)
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details = map[string]interface{}{
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"port": info.Ports,
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"service": "neo4j",
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"type": "weak-password",
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"username": result.Credential.Username,
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"password": result.Credential.Password,
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}
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}
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Common.LogSuccess(successMsg)
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// 保存结果
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vulnResult := &Common.ScanResult{
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Time: time.Now(),
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Type: Common.VULN,
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Target: info.Host,
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Status: "vulnerable",
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Details: details,
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}
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Common.SaveResult(vulnResult)
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}
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