Skip to main content

GCP - Professional Cloud Security Engineer - Part 1

Cloud DLP

1. Data discovery and classification of (sensitive) data in Cloud Storage, BigQuery and Datastore.

2. Supports "streaming API" to support additional data sources and custom workloads


Data identification using "built-in" and "custom" infotypes.

Also performs automatic classification, masking, tokenization and transformation of sensitive data elements (such as PII data)


Data Catalog

To find, curate and use metadata to describe data assets in the cloud.

Use Data Catalog to search for data assets and tag the assets with metadata.


CMEK - Generate and manage encryption keys using Cloud KMS. Helps to rotate encryption keys regularly


CSEK - Create and manage your own encryption keys and then provide to Google Cloud. You need your own BYOK solution.


Cloud External Key Manager (Cloud EKM) - This lets you achieve a secure hold-your-own-key (HYOK) model for key management. 


Cloud KMS - Software-backed encryption keys or FIPS 140-2 Level 3 validated HSM. 


Cloud Audit logs - To view administrator activity and key use logs.


Cloud Monitoring - To ensure proper use of keys.


Study Notes

1. Implied firewall rules on a VPC network - A rule that allows all outbound connections and a rule that denies all inbound connections.

Comments

Popular posts from this blog

Checkpoint - Exporting Objects in CSV format

Be it a Network Operations Manager, Security Architect or a Security Auditor, the people up the hierarchy always harangue the Security Engineers to compile the list of firewall objects or rules or policies or the traffic statistics and so on.. This can turn out to be quite hectic especially if there are no built in features to systematically provide the output in a "layman-readable" format. Come, Checkpoint's "Object Explorer..."  which not only provides the output in the "layman-readable" format, but also provides in-built filtering mechanisms, thereby ensuring that the Security Engineer doesn't have to rely on Google for building his scarce Microsoft Excel data filtering skills. The following screenshots will show how easy it is, with Checkpoint R80.10 to generate the firewall configuration inventory. On the SmartConsole Unified Portal, navigate to Menu >> Open Object Explorer... Select the Categories you wish to see in your output: Click o

Tejas Jain - GCP Constraints & Random Facts

1.  Google Cloud Interconnect Security Cloud Interconnect does not encrypt the connection between your on-premises network and Google's network. Cloud VPN cannot be used with Dedicated Interconnect For additional security, use application-level encryption or your own VPN 2. While using Cloud CDN, the default time-to-live (TTL) for content caching is 3600 seconds = 60 mins 3. Cloud NAT sends only the translation logs and error logs to Cloud Logging service. 4. GCP Dedicated Interconnect - On Premises network device requirements:     10-Gbps circuits, single mode fiber or 100-Gbps circuits, single mode fiber     IPv4 link local addressing     LACP, even if you are using single circuit     EBGP-4 with multi-hop     802.1Q VLANs 5. While using Cloud VPN, the recommended MTU to be configured on the peer VPN  gateway = 1460 bytes 6. Each instance must have at least one network interface. The maximum number of network instances per instance is 8, depending on the instance's machine

MITRE ATT&CK - Kerberos Vulnerabilities and Security

From the previous post, the summary of Kerberos authentication process is as below: For the initial authentication, the user’s client machine sends a request to the KDC  Authentication Service (AS) . The request includes details like the user’s username, and the date and time. All information except the username is encrypted using the hash of the user’s password. The KDC AS uses the username to look up its copy of the user’s password hash and uses it to decrypt the rest of the request. If the decryption is successful, that means the client used the correct password hash and the user has successfully authenticated. Once the user is authenticated, the KDC AS sends the user’s client a  ticket granting ticket   (TGT) . The TGT includes a unique session key and a timestamp that specifies how long that session is valid (normally 8 or 10 hours). Importantly, before sending the TGT, the KDC encrypts it using the password hash for a special account, the  KRBTGT account.  That password hash is s