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
About the Author
About the Reviewers

Using OAS data integrity for securing data in motion

Using data integrity guarantees that the packets will not be altered during transmission and reception. Data integrity can be used against replay attacks and MITM attacks, where the attacker may send crafted packets to obtain or modify different information from the database. Oracle provides SHA1 and MD5 hash functions for data integrity. Similarly with network encryption, if you want to use data integrity, an OAS license must be purchased. In the following recipe we will configure SHA1 for data integrity and we will demonstrate its utility against the Oracle Hijacking scenario.

Getting ready

The steps from this recipe will be performed on nodeorcl1 and nodeorcl5.

How to do it...

  1. Open the $ORACLE_HOME/network/admin/sqlnet.ora configuration file on nodeorcl1. Similarly with network encryption, data integrity also has desired checksum behavior which can be specified by using SQLNET.CRYPTO_CHECKSUM_SERVER. Set the value to required as follows...