Book Image

Oracle 11g Anti-hacker's Cookbook

By : Adrian Neagu
Book Image

Oracle 11g Anti-hacker's Cookbook

By: Adrian Neagu

Overview of this book

For almost all organizations, data security is a matter of prestige and credibility. The Oracle Database is one of the most rich in features and probably the most used Database in a variety of industries where security is essential. To ensure security of data both in transit and on the disk, Oracle has implemented the security technologies to achieve a reliable and solid system. In Oracle 11g Anti-Hacker's Cookbook, you will learn about the most important solutions that can be used for better database security."Oracle 11g Anti-hacker's Cookbook" covers all the important security measures and includes various tips and tricks to protect your Oracle Database."Oracle 11g Anti-hacker's Cookbook" uses real-world scenarios to show you how to secure the Oracle Database server from different perspectives and against different attack scenarios. Almost every chapter has a possible threads section, which describes the major dangers that can be confronted. The initial chapters cover how to defend the operating system, the network, the data and the users. The defense scenarios are linked and designed to prevent these attacks. The later chapters cover Oracle Vault, Oracle VPD, Oracle Labels, and Oracle Audit. Finally, in the Appendices, the book demonstrates how to perform a security assessment against the operating system and the database, and how to use a DAM tool for monitoring.
Table of Contents (16 chapters)
Oracle 11g Anti-hacker's Cookbook
Credits
Foreword
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Using label policy privileges


Oracle labels have a set of privileges, which can be used to bypass the current privileges in certain conditions, such as performing exports on label-protected tables or other operations that need to read or update the entire table. The same is true for other DML statements such as INSERT and DELETE.

In the previous recipe, we gave FULL policy privilege to the user HR. In this recipe, we will create a new user OLSAUTH, who will be granted a special privilege called PROFILE_ACCESS.

Getting ready

All the steps will be performed on the database HACKDB.

How to do it...

Usually special privileges should be granted to dedicated users. This can be done as follows:

  1. Connect as the user system, create user OLSAUTH and grant create session and SELECT on the table EMPLOYESS_OLS_TBL, as follows:

    SQL> conn system
    Enter password:
    Connected.
    SQL> create user OLSAUTH identified by OLSAUTH;
    
    User created.
    SQL> grant create session to employees_ols_tbl to OLSAUTH;
    SQL&gt...