Share EBS Snapshot¶
| Platform | Author | Last Update |
|---|---|---|
| aws | Anela Tiro | 2023-07-01 |
An adversary may attempt to share share an EBS snapshot (allow other accounts to create a volume from that snapshot)
MITRE IDs¶
Required Permissions¶
- ec2:createVolumePermission
Required Parameters¶
| Name | Type | Description | Example Value |
|---|---|---|---|
| snapshotid | str | ID of the snapshot that you want to make public | snapshot_ID |
| userid | int | 12-digit IDs of the AWS accounts with which to share the snapshots | user_ID |
Attacker Action¶
aws ec2 modify-snapshot-attribute --snapshot-id snapshot_ID --attribute createVolumePermission --operation-type add --user-ids user_ID
Detection Case¶
ELK query¶
When logs are ingested into ELK, the following Lucene query can be used to identify relevant events.
eventName:ModifySnapshotAttribute AND eventSource:*.ec2.amazonaws.com
Sigma Definition¶
---
title: Share EBS Snapshot
id: testing
status: experimental
author: Anela Tiro
date: 2023-07-01
description: An adversary may attempt to share share an EBS snapshot (allow other accounts to create a volume from that snapshot)
logsource:
service: cloudtrail
detection:
selection_source:
- eventSource: "*.ec2.amazonaws.com"
events:
- eventName: "ModifySnapshotAttribute"
condition: selection_source AND events
level: low
tags:
- attack.T1537