mirror of
https://github.com/shadow1ng/fscan.git
synced 2025-07-13 21:02:44 +08:00
112 lines
2.8 KiB
Go
112 lines
2.8 KiB
Go
package Plugins
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import (
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"bufio"
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"crypto/tls"
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"fmt"
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"github.com/shadow1ng/fscan/Common"
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"io"
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"net"
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"strings"
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"time"
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)
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func IMAPScan(info *Common.HostInfo) (tmperr error) {
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if Common.DisableBrute {
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return
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}
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starttime := time.Now().Unix()
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// 尝试用户名密码组合
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for _, user := range Common.Userdict["imap"] {
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for _, pass := range Common.Passwords {
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pass = strings.Replace(pass, "{user}", user, -1)
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flag, err := IMAPConn(info, user, pass)
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if flag && err == nil {
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return err
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}
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errlog := fmt.Sprintf("[-] IMAP服务 %v:%v 尝试失败 用户名: %v 密码: %v 错误: %v", info.Host, info.Ports, user, pass, err)
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Common.LogError(errlog)
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tmperr = err
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if Common.CheckErrs(err) {
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return err
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}
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if time.Now().Unix()-starttime > (int64(len(Common.Userdict["imap"])*len(Common.Passwords)) * Common.Timeout) {
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return err
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}
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}
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}
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return tmperr
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}
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func IMAPConn(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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addr := fmt.Sprintf("%s:%s", host, port)
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// 首先尝试普通连接
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conn, err := net.DialTimeout("tcp", addr, timeout)
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if err == nil {
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if flag, err := tryIMAPAuth(conn, host, port, user, pass, timeout); err == nil {
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return flag, nil
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}
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conn.Close()
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}
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// 如果普通连接失败，尝试TLS连接
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tlsConfig := &tls.Config{
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InsecureSkipVerify: true,
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}
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conn, err = tls.DialWithDialer(&net.Dialer{Timeout: timeout}, "tcp", addr, tlsConfig)
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if err != nil {
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return false, fmt.Errorf("连接失败: %v", err)
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}
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defer conn.Close()
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return tryIMAPAuth(conn, host, port, user, pass, timeout)
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}
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// tryIMAPAuth 尝试IMAP认证
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func tryIMAPAuth(conn net.Conn, host string, port string, user string, pass string, timeout time.Duration) (bool, error) {
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conn.SetDeadline(time.Now().Add(timeout))
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reader := bufio.NewReader(conn)
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_, err := reader.ReadString('\n')
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if err != nil {
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return false, fmt.Errorf("读取欢迎消息失败: %v", err)
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}
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loginCmd := fmt.Sprintf("a001 LOGIN \"%s\" \"%s\"\r\n", user, pass)
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_, err = conn.Write([]byte(loginCmd))
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if err != nil {
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return false, fmt.Errorf("发送登录命令失败: %v", err)
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}
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for {
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conn.SetDeadline(time.Now().Add(timeout))
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response, err := reader.ReadString('\n')
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if err != nil {
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if err == io.EOF {
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return false, fmt.Errorf("认证失败")
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}
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return false, fmt.Errorf("读取响应失败: %v", err)
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}
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if strings.Contains(response, "a001 OK") {
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result := fmt.Sprintf("[+] IMAP服务 %v:%v 爆破成功 用户名: %v 密码: %v",
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host, port, user, pass)
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Common.LogSuccess(result)
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return true, nil
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}
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if strings.Contains(response, "a001 NO") || strings.Contains(response, "a001 BAD") {
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return false, fmt.Errorf("认证失败")
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}
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}
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}
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