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package cmd
import (
"fmt"
"github.com/FalconOpsLLC/goexec/internal/util"
"github.com/FalconOpsLLC/goexec/pkg/goexec"
"github.com/FalconOpsLLC/goexec/pkg/goexec/dce"
"github.com/FalconOpsLLC/goexec/pkg/goexec/smb"
"github.com/RedTeamPentesting/adauth"
"github.com/oiweiwei/go-msrpc/ssp"
"github.com/oiweiwei/go-msrpc/ssp/gssapi"
"github.com/rs/zerolog"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
"golang.org/x/term"
"io"
"os"
)
type flagSet struct {
Label string
Flags *pflag.FlagSet
}
const helpTemplate = `Usage:{{if .Runnable}}
{{.UseLine}}{{end}}{{if .HasAvailableSubCommands}}
{{.CommandPath}} [command] [flags]{{end}}{{if gt (len .Aliases) 0}}
Aliases:
{{.NameAndAliases}}{{end}}{{if .HasExample}}
Examples:
{{.Example}}{{end}}{{if .HasAvailableSubCommands}}{{$cmds := .Commands}}{{if eq (len .Groups) 0}}
Available Commands:{{range $cmds}}{{if (or .IsAvailableCommand (eq .Name "help"))}}
{{rpad .Name .NamePadding }} {{.Short}}{{end}}{{end}}{{else}}{{range $group := .Groups}}
{{.Title}}{{range $cmds}}{{if (and (eq .GroupID $group.ID) (or .IsAvailableCommand (eq .Name "help")))}}
{{rpad .Name .NamePadding }} {{.Short}}{{end}}{{end}}{{end}}{{if not .AllChildCommandsHaveGroup}}
Additional Commands:{{range $cmds}}{{if (and (eq .GroupID "") (or .IsAvailableCommand (eq .Name "help")))}}
{{rpad .Name .NamePadding }} {{.Short}}{{end}}{{end}}{{end}}{{end}}{{end}}{{if (ne .Name "completion")}}{{range $_, $v := cmdFlags .}}
{{$v.Label|trimTrailingWhitespaces}}:
{{flags $v.Flags|trimTrailingWhitespaces}}{{end}}{{end}}{{if .HasHelpSubCommands}}
Additional help topics:{{range .Commands}}{{if .IsAdditionalHelpTopicCommand}}
{{rpad .CommandPath .CommandPathPadding}} {{.Short}}{{end}}{{end}}{{end}}{{if .HasAvailableSubCommands}}
Use "{{.CommandPath}} [command] --help" for more information about a command.{{end}}
`
var (
cmdFlags = make(map[*cobra.Command][]*flagSet)
defaultAuthFlags, defaultLogFlags, defaultNetRpcFlags *flagSet
returnCode int
outputMethod string
outputPath string
proxy string
// === Logging ===
logJson bool // Log output in JSON lines
logDebug bool // Output debug log messages
logQuiet bool // Suppress logging output
logOutput string // Log output file
logLevel zerolog.Level = zerolog.InfoLevel
logFile io.WriteCloser = os.Stderr
log zerolog.Logger
// ===============
rpcClient dce.Client
smbClient smb.Client
exec = goexec.ExecutionIO{
Input: new(goexec.ExecutionInput),
Output: new(goexec.ExecutionOutput),
}
adAuthOpts *adauth.Options
credential *adauth.Credential
target *adauth.Target
rootCmd = &cobra.Command{
Use: "goexec",
Short: `goexec - Windows remote execution multitool`,
Long: ``,
PersistentPreRunE: func(cmd *cobra.Command, args []string) (err error) {
// Parse logging options
{
if logOutput != "" {
logFile, err = os.OpenFile(logOutput, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
if err != nil {
return
}
logJson = true
}
if logQuiet {
logLevel = zerolog.ErrorLevel
} else if logDebug {
logLevel = zerolog.DebugLevel
}
if logJson {
log = zerolog.New(logFile).With().Timestamp().Logger()
} else {
log = zerolog.New(zerolog.ConsoleWriter{Out: logFile}).With().Timestamp().Logger()
}
log = log.Level(logLevel)
}
if proxy != "" {
rpcClient.Proxy = proxy
smbClient.Proxy = proxy
}
if outputPath != "" {
if outputMethod == "smb" {
if exec.Output.RemotePath == "" {
exec.Output.RemotePath = util.RandomWindowsTempFile()
}
exec.Output.Provider = &smb.OutputFileFetcher{
Client: &smbClient,
Share: `C$`,
File: exec.Output.RemotePath,
DeleteOutputFile: !exec.Output.NoDelete,
}
}
}
return
},
PersistentPostRun: func(cmd *cobra.Command, args []string) {
if err := logFile.Close(); err != nil {
// ...
}
},
}
)
func newFlagSet(name string) *flagSet {
flags := pflag.NewFlagSet(name, pflag.ExitOnError)
flags.SortFlags = false
return &flagSet{
Label: name,
Flags: flags,
}
}
func init() {
// Auth init
{
gssapi.AddMechanism(ssp.SPNEGO)
gssapi.AddMechanism(ssp.NTLM)
gssapi.AddMechanism(ssp.KRB5)
}
// Cobra init
{
cobra.EnableCommandSorting = false
{
defaultNetRpcFlags = newFlagSet("Network")
registerNetworkFlags(defaultNetRpcFlags.Flags)
}
{
defaultLogFlags = newFlagSet("Logging")
registerLoggingFlags(defaultLogFlags.Flags)
}
{
defaultAuthFlags = newFlagSet("Authentication")
adAuthOpts = &adauth.Options{
Debug: log.Debug().Msgf,
}
adAuthOpts.RegisterFlags(defaultAuthFlags.Flags)
}
modules := &cobra.Group{
ID: "module",
Title: "Execution Commands:",
}
rootCmd.AddGroup(modules)
cmdFlags[rootCmd] = []*flagSet{
defaultLogFlags,
defaultAuthFlags,
}
cobra.AddTemplateFunc("flags", func(fs *pflag.FlagSet) string {
if width, _, err := term.GetSize(int(os.Stdout.Fd())); err == nil {
return fs.FlagUsagesWrapped(width - 1)
}
return fs.FlagUsagesWrapped(80 - 1)
})
cobra.AddTemplateFunc("cmdFlags", func(cmd *cobra.Command) []*flagSet {
return cmdFlags[cmd]
})
rootCmd.InitDefaultVersionFlag()
rootCmd.InitDefaultHelpCmd()
rootCmd.SetHelpTemplate("{{if (ne .Long \"\")}}{{.Long}}\n{{end}}" + helpTemplate)
rootCmd.SetUsageTemplate(helpTemplate)
// Modules init
{
dcomCmdInit()
rootCmd.AddCommand(dcomCmd)
wmiCmdInit()
rootCmd.AddCommand(wmiCmd)
scmrCmdInit()
rootCmd.AddCommand(scmrCmd)
tschCmdInit()
rootCmd.AddCommand(tschCmd)
}
}
}
func Execute() {
if err := rootCmd.Execute(); err != nil {
fmt.Println(err)
os.Exit(1)
}
os.Exit(returnCode)
}
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