Az - Service Bus Privesc

AWS Hacking'i öğrenin ve pratik yapın:HackTricks Training AWS Red Team Expert (ARTE) GCP Hacking'i öğrenin ve pratik yapın: HackTricks Training GCP Red Team Expert (GRTE)

HackTricks'i Destekleyin

• abonelik planlarını kontrol edin!

• 💬 Discord grubuna veya telegram grubuna katılın ya da Twitter'da 🐦 @hacktricks_live bizi takip edin.**

• Hacking ipuçlarını paylaşmak için HackTricks ve HackTricks Cloud github reposuna PR gönderin.

Service Bus

Daha fazla bilgi için kontrol edin:

Az - Service Bus

Mesaj Gönder. Eylem: Microsoft.ServiceBus/namespaces/authorizationRules/listkeys/action veya Microsoft.ServiceBus/namespaces/authorizationRules/regenerateKeys/action

PrimaryConnectionString'i alabilirsiniz; bu, Service Bus ad alanı için bir kimlik bilgisi olarak işlev görür. Bu bağlantı dizesi ile, Service Bus ad alanı olarak tamamen kimlik doğrulaması yapabilir, herhangi bir kuyruk veya konuya mesaj gönderebilir ve potansiyel olarak sistemi, operasyonları kesintiye uğratacak, geçerli kullanıcıları taklit edecek veya mesajlaşma iş akışına kötü niyetli veriler enjekte edecek şekilde etkileşime geçebilirsiniz.

#You need to install the following libraries
#pip install azure-servicebus
#pip install aiohttp
#pip install azure-identity

import asyncio
from azure.servicebus.aio import ServiceBusClient
from azure.servicebus import ServiceBusMessage

# Constants
NAMESPACE_CONNECTION_STR = "<PrimaryConnectionString>"
TOPIC_NAME = "<TOPIC_NAME>"

# Function to send a single message to a Service Bus topic
async def send_individual_message(publisher):
# Prepare a single message with updated content
single_message = ServiceBusMessage("Hacktricks-Training: Single Item")
# Send the message to the topic
await publisher.send_messages(single_message)
print("Sent a single message containing 'Hacktricks-Training'")

# Function to send multiple messages to a Service Bus topic
async def send_multiple_messages(publisher):
# Generate a collection of messages with updated content
message_list = [ServiceBusMessage(f"Hacktricks-Training: Item {i+1} in list") for i in range(5)]
# Send the entire collection of messages to the topic
await publisher.send_messages(message_list)
print("Sent a list of 5 messages containing 'Hacktricks-Training'")

# Function to send a grouped batch of messages to a Service Bus topic
async def send_grouped_messages(publisher):
# Send a grouped batch of messages with updated content
async with publisher:
grouped_message_batch = await publisher.create_message_batch()
for i in range(10):
try:
# Append a message to the batch with updated content
grouped_message_batch.add_message(ServiceBusMessage(f"Hacktricks-Training: Item {i+1}"))
except ValueError:
# If batch reaches its size limit, handle by creating another batch
break
# Dispatch the batch of messages to the topic
await publisher.send_messages(grouped_message_batch)
print("Sent a batch of 10 messages containing 'Hacktricks-Training'")

# Main function to execute all tasks
async def execute():
# Instantiate the Service Bus client with the connection string
async with ServiceBusClient.from_connection_string(
conn_str=NAMESPACE_CONNECTION_STR,
logging_enable=True) as sb_client:
# Create a topic sender for dispatching messages to the topic
publisher = sb_client.get_topic_sender(topic_name=TOPIC_NAME)
async with publisher:
# Send a single message
await send_individual_message(publisher)
# Send multiple messages
await send_multiple_messages(publisher)
# Send a batch of messages
await send_grouped_messages(publisher)

# Run the asynchronous execution
asyncio.run(execute())
print("Messages Sent")
print("----------------------------")

Mesajları Al. Eylem: Microsoft.ServiceBus/namespaces/authorizationRules/listkeys/action VEYA Microsoft.ServiceBus/namespaces/authorizationRules/regenerateKeys/action

Service Bus ad alanı için bir kimlik bilgisi olarak hizmet eden PrimaryConnectionString'i alabilirsiniz. Bu bağlantı dizesini kullanarak, ad alanındaki herhangi bir kuyruktan veya abonelikten mesaj alabilir, potansiyel olarak hassas veya kritik verilere erişim sağlayabilir, veri sızdırma işlemlerini mümkün kılabilir veya mesaj işleme ve uygulama iş akışlarını etkileyebilirsiniz.

#You need to install the following libraries
#pip install azure-servicebus
#pip install aiohttp
#pip install azure-identity

import asyncio
from azure.servicebus.aio import ServiceBusClient

NAMESPACE_CONNECTION_STR = "<PrimaryConnectionString>"
TOPIC_NAME = "<TOPIC_NAME>"
SUBSCRIPTION_NAME = "<TOPIC_SUBSCRIPTION_NAME>" #Topic Subscription

# Function to receive and process messages from a Service Bus subscription
async def receive_and_process_messages():
# Create a Service Bus client using the connection string
async with ServiceBusClient.from_connection_string(
conn_str=NAMESPACE_CONNECTION_STR,
logging_enable=True) as servicebus_client:

# Get the Subscription Receiver object for the specified topic and subscription
receiver = servicebus_client.get_subscription_receiver(
topic_name=TOPIC_NAME,
subscription_name=SUBSCRIPTION_NAME,
max_wait_time=5
)

async with receiver:
# Receive messages with a defined maximum wait time and count
received_msgs = await receiver.receive_messages(
max_wait_time=5,
max_message_count=20
)
for msg in received_msgs:
print("Received: " + str(msg))
# Complete the message to remove it from the subscription
await receiver.complete_message(msg)

# Run the asynchronous message processing function
asyncio.run(receive_and_process_messages())
print("Message Receiving Completed")
print("----------------------------")

Microsoft.ServiceBus/namespaces/authorizationRules/write & Microsoft.ServiceBus/namespaces/authorizationRules/write

Bu izinlere sahipseniz, paylaşılan erişim anahtarlarını okuyarak veya oluşturarak ayrıcalıkları artırabilirsiniz. Bu anahtarlar, kuyrukları, konuları yönetme ve mesaj gönderme/alma dahil olmak üzere Service Bus ad alanı üzerinde tam kontrol sağlar ve potansiyel olarak rol tabanlı erişim kontrollerini (RBAC) atlayabilir.

az servicebus namespace authorization-rule update \
--resource-group <MyResourceGroup> \
--namespace-name <MyNamespace> \
--name RootManageSharedAccessKey \
--rights Manage Listen Send

Referanslar

• https://learn.microsoft.com/en-us/azure/storage/queues/storage-powershell-how-to-use-queues

• https://learn.microsoft.com/en-us/rest/api/storageservices/queue-service-rest-api

• https://learn.microsoft.com/en-us/azure/storage/queues/queues-auth-abac-attributes

• https://learn.microsoft.com/en-us/azure/service-bus-messaging/service-bus-python-how-to-use-topics-subscriptions?tabs=passwordless

• https://learn.microsoft.com/en-us/azure/role-based-access-control/permissions/integration#microsoftservicebus

HackTricks'i Destekleyin

• abonelik planlarını kontrol edin!

• 💬 Discord grubuna veya telegram grubuna katılın ya da Twitter'da 🐦 @hacktricks_live'i takip edin.**

• Hacking ipuçlarını HackTricks ve HackTricks Cloud github reposuna PR göndererek paylaşın.