Oracle Database Administration from Zero to Hero - Applying the Principle of Least Privileges

This lecture covers the principle of least privilege, a key concept in information system security, particularly in Oracle databases. It emphasizes granting minimal privileges to users to enhance security and prevent unauthorized actions. The lecture provides specific tips for implementing this principle in Oracle, such as protecting data dictionary tables, restricting execute privileges, and managing access to operating system directories. It also discusses the importance of audit policies, restricting public network links, and maintaining proper documentation of privilege grants and revokes.

What is the main goal of applying the principle of least privilege?

• To increase user access

• To enhance user experience

• To maximize system security

• To simplify database management

Which parameter should not be changed from its default setting to protect data dictionary tables?

• OS AUTHENT prefix

• AUDIT SYS OPERATIONS

• REMOTE OS AUTHENT

• 07 DICTIONARY ACCESSIBILITY

Why should execute privileges on certain packages not be granted to the public role?

• To improve performance

• To prevent unauthorized access

• To simplify user management

• To reduce server load

What is a common mistake made by DBAs regarding administrator privileges?

• Granting DBA role to application owner accounts

• Restricting access to SYS schema

• Changing default parameter values

• Allowing public database links

What should be set to true to define and follow audit policies for critical operations?

• OS AUTHENT prefix

• 07 DICTIONARY ACCESSIBILITY

• REMOTE OS AUTHENT

• AUDIT SYS OPERATIONS

Why should public database links be avoided?

• To simplify database configuration

• To prevent unauthorized database access

• To reduce network traffic

• To improve query performance

What is essential when DBAs are involved in granting or revoking privileges?

• Allowing public access

• Documenting every action

• Using default settings

• Simplifying workflows