feat: 增加SMTP扫描

Common/Config.go

@@ -17,6 +17,7 @@ var Userdict = map[string][]string{
 	"kafka":      {"admin", "kafka", "root", "test"},
 	"activemq":   {"admin", "root", "activemq", "system", "user"},
 	"ldap":       {"admin", "administrator", "root", "cn=admin", "cn=administrator", "cn=manager"},
+	"smtp":       {"admin", "root", "postmaster", "mail", "smtp", "administrator"},
 }
 
 var Passwords = []string{"123456", "admin", "admin123", "root", "", "pass123", "pass@123", "password", "P@ssword123", "123123", "654321", "111111", "123", "1", "admin@123", "Admin@123", "admin123!@#", "{user}", "{user}1", "{user}111", "{user}123", "{user}@123", "{user}_123", "{user}#123", "{user}@111", "{user}@2019", "{user}@123#4", "P@ssw0rd!", "P@ssw0rd", "Passw0rd", "qwe123", "12345678", "test", "test123", "123qwe", "123qwe!@#", "123456789", "123321", "666666", "a123456.", "123456~a", "123456!a", "000000", "1234567890", "8888888", "!QAZ2wsx", "1qaz2wsx", "abc123", "abc123456", "1qaz@WSX", "a11111", "a12345", "Aa1234", "Aa1234.", "Aa12345", "a123456", "a123123", "Aa123123", "Aa123456", "Aa12345.", "sysadmin", "system", "1qaz!QAZ", "2wsx@WSX", "qwe123!@#", "Aa123456!", "A123456s!", "sa123456", "1q2w3e", "Charge123", "Aa123456789", "elastic123"}

Common/ParseScanMode.go

@@ -21,7 +21,7 @@ var pluginGroups = map[string][]string{
 		"web", "fcgi", // web类
 		"mysql", "mssql", "redis", "mongodb", "postgres", // 数据库类
 		"oracle", "memcached", "elasticsearch", "rabbitmq", "kafka", "activemq", // 数据库类
-		"ftp", "ssh", "telnet", "smb", "rdp", "vnc", "netbios", "ldap", // 服务类
+		"ftp", "ssh", "telnet", "smb", "rdp", "vnc", "netbios", "ldap", "smtp", // 服务类
 		"ms17010", "smbghost", "smb2", // 漏洞类
 		"findnet", "wmiexec", // 其他
 	},
@@ -36,7 +36,7 @@ var pluginGroups = map[string][]string{
 		"web", "fcgi",
 	},
 	ModeService: {
-		"ftp", "ssh", "telnet", "smb", "rdp", "vnc", "netbios", "ldap",
+		"ftp", "ssh", "telnet", "smb", "rdp", "vnc", "netbios", "ldap", "smtp",
 	},
 	ModeVul: {
 		"ms17010", "smbghost", "smb2",

Common/Ports.go

@@ -5,7 +5,7 @@ import (
 	"strings"
 )
 
-var ServicePorts = "21,22,23,135,139,389,445,636,1433,1521,2222,3306,3389,5432,5672,5671,6379,8161,9000,9092,9093,9200,11211,15672,15671,27017,61616,61613"
+var ServicePorts = "21,22,23,25,135,139,389,445,465,587,636,1433,1521,2222,3306,3389,5432,5672,5671,6379,8161,9000,9092,9093,9200,11211,15672,15671,27017,61616,61613"
 var DbPorts = "1433,1521,3306,5432,5672,6379,9093,9200,11211,27017,61616"
 var WebPorts = "80,81,82,83,84,85,86,87,88,89,90,91,92,98,99,443,800,801,808,880,888,889,1000,1010,1080,1081,1082,1099,1118,1888,2008,2020,2100,2375,2379,3000,3008,3128,3505,5555,6080,6648,6868,7000,7001,7002,7003,7004,7005,7007,7008,7070,7071,7074,7078,7080,7088,7200,7680,7687,7688,7777,7890,8000,8001,8002,8003,8004,8006,8008,8009,8010,8011,8012,8016,8018,8020,8028,8030,8038,8042,8044,8046,8048,8053,8060,8069,8070,8080,8081,8082,8083,8084,8085,8086,8087,8088,8089,8090,8091,8092,8093,8094,8095,8096,8097,8098,8099,8100,8101,8108,8118,8161,8172,8180,8181,8200,8222,8244,8258,8280,8288,8300,8360,8443,8448,8484,8800,8834,8838,8848,8858,8868,8879,8880,8881,8888,8899,8983,8989,9000,9001,9002,9008,9010,9043,9060,9080,9081,9082,9083,9084,9085,9086,9087,9088,9089,9090,9091,9092,9093,9094,9095,9096,9097,9098,9099,9100,9200,9443,9448,9800,9981,9986,9988,9998,9999,10000,10001,10002,10004,10008,10010,10250,12018,12443,14000,15672,15671,16080,18000,18001,18002,18004,18008,18080,18082,18088,18090,18098,19001,20000,20720,21000,21501,21502,28018,20880"
 var AllPorts = "1-65535"

Core/Registry.go

@@ -91,6 +91,12 @@ func init() {
 		ScanFunc: Plugins.LDAPScan,
 	})
 
+	Common.RegisterPlugin("smtp", Common.ScanPlugin{
+		Name:     "SMTP",
+		Ports:    []int{25, 465, 587},
+		ScanFunc: Plugins.SmtpScan,
+	})
+
 	Common.RegisterPlugin("rdp", Common.ScanPlugin{
 		Name:     "RDP",
 		Ports:    []int{3389},

Plugins/SMTP.go

@@ -0,0 +1,101 @@
+package Plugins
+
+import (
+	"fmt"
+	"github.com/shadow1ng/fscan/Common"
+	"net"
+	"net/smtp"
+	"strings"
+	"time"
+)
+
+// SmtpScan 执行 SMTP 服务扫描
+func SmtpScan(info *Common.HostInfo) (tmperr error) {
+	if Common.DisableBrute {
+		return
+	}
+
+	starttime := time.Now().Unix()
+
+	// 首先测试匿名访问
+	flag, err := SmtpConn(info, "", "")
+	if flag && err == nil {
+		return err
+	}
+
+	// 尝试用户名密码组合
+	for _, user := range Common.Userdict["smtp"] {
+		for _, pass := range Common.Passwords {
+			pass = strings.Replace(pass, "{user}", user, -1)
+
+			flag, err := SmtpConn(info, user, pass)
+			if flag && err == nil {
+				return err
+			}
+
+			errlog := fmt.Sprintf("[-] SMTP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)
+			Common.LogError(errlog)
+			tmperr = err
+
+			if Common.CheckErrs(err) {
+				return err
+			}
+
+			// 超时检查
+			if time.Now().Unix()-starttime > (int64(len(Common.Userdict["smtp"])*len(Common.Passwords)) * Common.Timeout) {
+				return err
+			}
+		}
+	}
+	return tmperr
+}
+
+// SmtpConn 尝试 SMTP 连接
+func SmtpConn(info *Common.HostInfo, user string, pass string) (bool, error) {
+	host, port := info.Host, info.Ports
+	timeout := time.Duration(Common.Timeout) * time.Second
+
+	// 构造地址
+	addr := fmt.Sprintf("%s:%s", host, port)
+
+	// 创建带超时的连接
+	conn, err := net.DialTimeout("tcp", addr, timeout)
+	if err != nil {
+		return false, err
+	}
+	defer conn.Close()
+
+	// 创建SMTP客户端
+	client, err := smtp.NewClient(conn, host)
+	if err != nil {
+		return false, err
+	}
+	defer client.Close()
+
+	// 如果提供了认证信息
+	if user != "" {
+		auth := smtp.PlainAuth("", user, pass, host)
+		err = client.Auth(auth)
+		if err != nil {
+			return false, err
+		}
+	}
+
+	// 验证是否可以发送邮件
+	err = client.Mail("test@test.com")
+	if err != nil {
+		return false, err
+	}
+
+	// 如果成功
+	result := fmt.Sprintf("[+] SMTP服务 %v:%v ", host, port)
+	if user != "" {
+		result += fmt.Sprintf("爆破成功 用户名: %v 密码: %v", user, pass)
+	} else {
+		result += "允许匿名访问"
+	}
+	Common.LogSuccess(result)
+
+	return true, nil
+}