GCP - Professional Cloud Security Engineer

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.

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MITRE ATT&CK - Kerberos Vulnerabilities and Security

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Kerberos = Network Authentication Protocol used by AD environments Provides authentication by issuing tickets to authenticate users and allow them access to the services Tickets are distibuted by KDC (Key Distribution Center), which is typically a Domain Controller (DC) During initial authentication, a TGT (Ticket Granting Ticket) is a ticket asigned to a user by KDC. TGT is later used to authenticate the user to the KDC in order to request a service ticket from TGS (Ticket Granting Service). Service tickets are granted for authentication against services. List of steps / negotiations for Kerberos authentication (of the user with the service): The user requests (AS-REQ) a TGT from the KDC and the KDC verifies and validates the credentials and user information. This request if often done automatically at login. After authenticating the user, the KDC sends an encrypted TGT back to the requester (AS-REP) . The user presents the TGT to the DC and requests a TGS (TGS-...

Tejas Jain

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