Download PDF by David Knox: Effective Oracle Database 10g Security by Design

By David Knox

ISBN-10: 0072231300

ISBN-13: 9780072231304

Oracle safety professional David Knox explains the right way to layout and increase an built-in, safe Oracle surroundings. "In my adventure within the protection international, together with 32 years on the principal Intelligence employer, i have no longer stumbled on someone with extra event within the concept and perform of defending your information than David Knox.

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Privileged database option schemas (such as MDYS), default application accounts, and user accounts will be listed by the ALL_USERS view as valid targets to a nefarious user. The list of valid database users then becomes a list of valid database targets. A malicious user could easily say, “Oh look, the is installed. ” Therefore, you should consider revoking PUBLIC access to certain database metadata. Looking at SYS objects that start with ALL is a good place to start: SELECT table_name FROM dba_tab_privs WHERE grantee = 'PUBLIC' AND owner = 'SYS' AND PRIVILEGE = 'SELECT' AND table_name LIKE 'ALL%'; 40 Chapter 2: Securing The Database Chapter 2: Securing The Database 41 Broken Objects Before revoking PUBLIC access to default database objects, you should know that the revocation may break existing programs or applications.

Biometric A quickly growing and exciting technology for supporting user identification is biometric technology. Biometrics refers to the biological characteristics of people that can be measured to distinguish the differences among them. You use biometrics constantly to identify people. Your brain uses facial recognition when you see familiar people and voice recognition when you answer a phone call from someone you know. A mass of companies are currently trying to mature various biometric technologies.

Originally, sensitive data referred to items such as the encrypted user passwords. Today, even the list of all usernames in the database is considered sensitive. However, some of this data is still available to PUBLIC. As an example, the ALL_USERS view is accessible to PUBLIC and it lists the username of every database schema. A technique often used by hackers is to obtain and use a list of valid user accounts to try to access those accounts. Privileged database option schemas (such as MDYS), default application accounts, and user accounts will be listed by the ALL_USERS view as valid targets to a nefarious user.

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