Applied Cybernetics Group
T1530 Data from Cloud Storage
- Technique
T1530- Tactics
- Collection
- Research, 90 days
- 0
- KEV CVEs mapped
- 2
- SigmaHQ rules
- 0
- Elastic, Splunk
- 37
- thrunt rules
- 0
- Upstream
- https://attack.mitre.org/techniques/T1530
MITRE description
Adversaries may access data from cloud storage. Many IaaS providers offer solutions for online data object storage such as Amazon S3, Azure Storage, and Google Cloud Storage. Similarly, SaaS enterprise platforms such as Office 365 and Google Workspace provide cloud-based document storage to users through services such as OneDrive and Google Drive, while SaaS application providers such as Slack, Confluence, Salesforce, and Dropbox may provide cloud storage solutions as a peripheral or primary use case of their platform. In some cases, as with IaaS-based cloud storage, there exists no overarching application (such as SQL or Elasticsearch) with which to interact with the stored objects: instead, data from these solutions is retrieved directly through the [Cloud API](https://attack.mitre.org/techniques/T1059/009). In SaaS applications, adversaries may be able to collect this data directly from APIs or backend cloud storage objects, rather than through their front-end application or interface (i.e., [Data from Information Repositories](https://attack.mitre.org/techniques/T1213)). Adversaries may collect sensitive data from these cloud storage solutions. Providers typically offer security guides to help end users configure systems, though misconfigurations are a common problem.(Citation: Amazon S3 Security, 2019)(Citation: Microsoft Azure Storage Security, 2019)(Citation: Google Cloud Storage Best Practices, 2019) There have been numerous incidents where cloud storage has been improperly secured, typically by unintentionally allowing public access to unauthenticated users, overly-broad access by all users, or even access for any anonymous person outside the control of the Identity Access Management system without even needing basic user permissions. This open access may expose various types of sensitive data, such as credit cards, personally identifiable information, or medical records.(Citation: Trend Micro S3 Exposed PII, 2017)(Citation: Wired Magecart S3 Buckets, 2019)(Citation: HIPAA Journal S3 Breach, 2017)(Citation: Rclone-mega-extortion_05_2021) Adversaries may also obtain then abuse leaked credentials from source repositories, logs, or other means as a way to gain access to cloud storage objects.
KEV CVEs mapped to this technique
MITRE CTID maps these KEV CVEs to this technique by hand. They are the actively exploited vulnerabilities behind this technique's KEV signal.
Detection coverage
Elastic and Splunk rules
- Potential Third-Party Cloud Storage Client Execution (elastic)
- Anthropic Compliance Audit Log Export Accessed (elastic)
- Anthropic Organization Data Export Accessed (elastic)
- AWS CloudTrail Log Created (elastic)
- AWS S3 Bucket ACL Modified to Allow Public Access by New Identity (elastic)
- AWS S3 Unauthenticated Bucket Access by Rare Source (elastic)
- AWS S3 Credential File Retrieved from Bucket (elastic)
- AWS S3 Rapid Bucket Posture API Calls from a Single Principal (elastic)
- AWS DynamoDB Scan by Unusual User (elastic)
- AWS EC2 Export Task (elastic)
- AWS S3 Bucket Policy Added to Share with External Account (elastic)
- AWS S3 Bucket Policy Added to Allow Public Access (elastic)
- AWS API Activity from Uncommon S3 Client by Rare User (elastic)
- AWS SNS Rare Protocol Subscription by User (elastic)
- AWS S3 Bucket Enumeration or Brute Force (elastic)
- AWS CloudTrail Log Updated (elastic)
- Azure Storage Account Blob Public Access Enabled (elastic)
- Azure Storage Anonymous Blob Access to Unusual Resource (elastic)
- Azure Storage Blob Retrieval via AzCopy (elastic)
- GCP Pub/Sub Subscription Creation (elastic)
- GCP Pub/Sub Topic Creation (elastic)
- GCP Vertex AI High GenerateContent Volume From Single IP (elastic)
- Google Workspace Drive Encryption Key(s) Accessed from Anonymous User (elastic)
- Kubernetes Secret or ConfigMap Access via Azure Arc Proxy (elastic)
- M365 OneDrive/SharePoint Excessive File Downloads (elastic)
Showing 25 of 37.