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list-group-owners.go
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/
list-group-owners.go
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// Copyright (C) 2022 Specter Ops, Inc.
//
// This file is part of AzureHound.
//
// AzureHound is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// AzureHound is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package cmd
import (
"context"
"fmt"
"os"
"os/signal"
"sync"
"time"
"github.com/bloodhoundad/azurehound/client"
"github.com/bloodhoundad/azurehound/enums"
"github.com/bloodhoundad/azurehound/models"
"github.com/bloodhoundad/azurehound/pipeline"
"github.com/spf13/cobra"
)
func init() {
listRootCmd.AddCommand(listGroupOwnersCmd)
}
var listGroupOwnersCmd = &cobra.Command{
Use: "group-owners",
Long: "Lists Azure AD Group Owners",
Run: listGroupOwnersCmdImpl,
SilenceUsage: true,
}
func listGroupOwnersCmdImpl(cmd *cobra.Command, args []string) {
ctx, stop := signal.NotifyContext(cmd.Context(), os.Interrupt, os.Kill)
defer gracefulShutdown(stop)
log.V(1).Info("testing connections")
if err := testConnections(); err != nil {
exit(err)
} else if azClient, err := newAzureClient(); err != nil {
exit(err)
} else {
log.Info("collecting azure group owners...")
start := time.Now()
stream := listGroupOwners(ctx, azClient, listGroups(ctx, azClient))
outputStream(ctx, stream)
duration := time.Since(start)
log.Info("collection completed", "duration", duration.String())
}
}
func listGroupOwners(ctx context.Context, client client.AzureClient, groups <-chan interface{}) <-chan interface{} {
var (
out = make(chan interface{})
ids = make(chan string)
streams = pipeline.Demux(ctx.Done(), ids, 25)
wg sync.WaitGroup
)
go func() {
defer close(ids)
for result := range pipeline.OrDone(ctx.Done(), groups) {
if group, ok := result.(AzureWrapper).Data.(models.Group); !ok {
log.Error(fmt.Errorf("failed type assertion"), "unable to continue enumerating group owners", "result", result)
return
} else {
ids <- group.Id
}
}
}()
wg.Add(len(streams))
for i := range streams {
stream := streams[i]
go func() {
defer wg.Done()
for id := range stream {
var (
groupOwners = models.GroupOwners{
GroupId: id,
}
count = 0
)
for item := range client.ListAzureADGroupOwners(ctx, id, "", "", "", nil) {
if item.Error != nil {
log.Error(item.Error, "unable to continue processing owners for this group", "groupId", id)
} else {
groupOwner := models.GroupOwner{
Owner: item.Ok,
GroupId: item.GroupId,
}
log.V(2).Info("found group owner", "groupOwner", groupOwner)
count++
groupOwners.Owners = append(groupOwners.Owners, groupOwner)
}
}
out <- AzureWrapper{
Kind: enums.KindAZGroupOwner,
Data: groupOwners,
}
log.V(1).Info("finished listing group owners", "groupId", id, "count", count)
}
}()
}
go func() {
wg.Wait()
close(out)
log.Info("finished listing all group owners")
}()
return out
}