Tuesday, February 16, 2010

Information Security Management System (ISMS) – ISO 27001

Information Security Management System (ISMS) is a management system based on a systematic business risk approach, to establish, implement, operate, monitor, review, maintain, and improve information security. It is an organizational approach to information security. ISO/IEC 27001 is a standard for information security that focuses on an organization's ISMS.

Objective of ISMS

Information security is the protection of information to ensure:
• Confidentiality: ensuring that the information is accessible only to those authorised to access it.
• Integrity: ensuring that the information is accurate and complete and that the information is not modified without authorization.
• Availability: ensuring that the information is accessible to authorized users when required.

Why should I implement ISO 27001 ISMS?

• Certification of a management system brings several advantages. It gives an independent assessment of your organization's conformity to an international standard that contains best practices from experts for ISMS.
• Meeting legislative and regulatory requirements
• As a measure and independent evidence that industry best practices are being followed.
• As part of a corporate governance program

Process for implementing ISO 27001
1. Define an information security policy
2. Define scope of the information security management system
3. Perform a security risk assessment
4. Manage the identified risk
5. Select controls to be implemented and applied
6. Prepare as SoA (a "statement of applicability")

The Certification Process
 Guidelines - ISO/IEC 27002:2007
 Certification - ISO/IEC 27001:2005
 Stage 1 : Documentation Review & evaluate client's readiness
 Stage 2 : Implementation audit & evaluate effectiveness of client's systems
 Lead Auditor's recommendation to certify
 Certificate issued by certification/registration body
 Surveillance
 Periodic review audits (6 months interval)
 Re-certification (after 3 years)

Penetration Testing

Penetration testing (also called pen testing) is the practice of testing a computer system, network or Web application to find vulnerabilities that an attacker could exploit.
Pen tests can be automated with software applications or they can be performed manually. Either way, the process includes gathering information about the target before the test (reconnaissance), identifying possible entry points, attempting to break in (either virtually or for real) and reporting back the findings.
The main objective of penetration testing is to determine security weaknesses. A pen test can also be used to test an organization's security policy compliance, its employees' security awareness and the organization's ability to identify and respond to security incidents.
Penetration tests are sometimes called white hat attacks because in a pen test, the good guys are attempting to break in.
Pen test strategies include: -

Targeted testing

Targeted testing is performed by the organization's IT team and the penetration testing team working together. It's sometimes referred to as a "lights-turned-on" approach because everyone can see the test being carried out.

External testing

This type of pen test targets a company's externally visible servers or devices including domain name servers (DNS), e-mail servers, Web servers or firewalls. The objective is to find out if an outside attacker can get in and how far they can get in once they've gained access.

Internal testing

This test mimics an inside attack behind the firewall by an authorized user with standard access privileges. This kind of test is useful for estimating how much damage a disgruntled employee could cause.

Blind testing

A blind test strategy simulates the actions and procedures of a real attacker by severely limiting the information given to the person or team that's performing the test beforehand. Typically, they may only be given the name of the company. Because this type of test can require a considerable amount of time for reconnaissance, it can be expensive.

Double blind testing

Double blind testing takes the blind test and carries it a step further. In this type of pen test, only one or two people within the organization might be aware a test is being conducted. Double-blind tests can be useful for testing an organization's security monitoring and incident identification as well as its response procedures.
Penetration Testing Tools
1) Nmap - Worlds Best Port Scanner
2) Nessus - Vulnerability Scanner
3) Metasploit - Exploit framework
4) Pass-The-Hash - Who needs passwords?
5) Hydra - Brute force password guessing
6) Cain & Abel - The ultimate MITM utility
7) Wireshark - network protocol analyzer
8) Snort - traffic analysis and packet logging on IP networks
9) Netcat - reads and writes data across TCP or UDP network connections
10) Nikto - web server scanner which performs comprehensive tests against web servers

Technology Trends 2010

1. Unified Communication
2. Information Security
3. Cloud Computing
4. Virtualisation
5. Mobile application
6. Data Centre Management
7. Mobility & GPS
8. Business Intelligence
9. Gaming Application & Animation
10. Bar-coding & RFID