In The Spotlight
Are you taking IBM i security for granted? Don’t let ignorance be your security policy.
By Pauline Brazil Ayala
IBM i has the great potential of keeping your data secure at the highest level, but is it configured to take advantage of all the security features the system provides? With the prevalence of cyberthreats in today’s market, neglecting IBM i in an organization’s security policy poses major risks. The data stored on the system and the business processes running on it are highly valuable and require just as much or more security focus as your Windows and Linux servers. Let’s look at four major system areas and examine why you should pay attention to the unique facets of the IBM i to keep your critical assets safe from intruders.
#1: Resource Security
It is no surprise to anyone that ransomware is a huge threat in the cybersecurity space. The number of incidents is staggering, the results are devastating, and there is no sign of it slowing down. For some, however, it is still a surprise that the IBM i needs protection from ransomware. Left misconfigured, the potential for the Integrated File System (IFS) to be corrupted is a real threat. The IFS can be best likened to a UNIX file system and is where all modern applications reside on the IBM i. In the past decade, there have been considerable advancements on the IBM i platform, especially in the area of open-source technology and the PASE environment, which has led to increased usage of the IFS. Consequently, it is more critical than ever to be aware of your IFS security and ensure it is included in your security policy considerations.
The default permissions granted to an IFS object are RWX (read, write, execute), which effectively grants all users unrestricted access to the object, as illustrated in Figure 1. Often when data or applications are loaded onto the IFS, they are done so with default permissions.
Figure 1: Default permissions of RWX (read, write, execute) are granted to the owner, the group, and the public for IFS objects.
With critical modern applications residing on the IFS, if you do not take the time to secure this file system properly, these applications and data can easily be accessed by anybody, including malicious actors, which can lead to data corruption, covert object replacement, unauthorized permission changes, and data exfiltration, among others. This is the area of the system that can house viruses and ransomware, so it is very important to understand how your IFS is being used and reduce the access granted to users as much as possible.
#2: Network Security
With the exponential rise in security incidents over the past several years, perimeter security has become widely regarded to be insufficient as a singular form of protection for a corporate network. Although firewalls are a good first-level check for the traffic that passes through them, they are often bypassed when other means of network penetration are used (e.g., phishing emails). The move toward zero-trust environments is highly recommended to enforce proper access controls down to the asset level and to prevent lateral movement within a network in case of a breach. If malware infects some part of your network, this helps contain it and prevent it from spreading.
On IBM i, many remote servers (e.g., FTP, ODBC/JDBC, SQL, File Server, Telnet, etc.) are turned on by default and can allow users with legitimate system access the ability to bypass their usual application-level security and access whatever they want by using the remote service. In addition to these default services, out of the box, there are no monitoring/auditing capabilities in place when these remote servers are accessed. PASE applications that come in directly through socket connections at the port level also go unmonitored and are not audited by default. All ports to the system are open as well, unless you have a solution in place to block specific ports.
Given the typically critical nature of IBM i servers, it is important to monitor and secure network traffic directly to the IBM i. Exit point security helps with this. The IBM i has a unique registration facility that lets you do additional processing on all remote access to the system (albeit through coding or investing in a software package) so that you can perform granular level tracking to see details on all transactions happening within your network as well as put controls in place to allow only authorized traffic, unlike a firewall where you only see the connections happening. To reduce the threat factor on the system, end those remote servers that do not serve a business purpose. Additionally, change your system configuration so that those servers no longer start automatically.
#3: User Profiles (Accounts)
Compromising privileged users is the most common means used by novice hackers and in phishing attacks to gain access to sensitive data. This should not be taken lightly, because the incidence of attacks has risen greatly since the availability of Ransomware as a Service (RaaS) and GenAI, which lower the skillsets needed to conduct a cyberattack. It is imperative that you take measures to safeguard the user profiles on all of your systems. This can be achieved with the following:
- Implementing the least-privilege model: Having numerous privileged users on a system increases the threat factor on the system because of the increased probability and potential damage caused by a breach. Reducing the privileged accounts to a minimum should be a top priority. Privilege escalation tools can be leveraged to cover the gap in running essential privileged operations.
- Strong password policies: Advancements in AI and quantum computing will decrease the time required to break passwords using brute force attacks in the coming years; therefore, it is critical to maximize password complexity.
- Multi-factor authentication (MFA): MFA is another layer of protection that can help prevent fraudulent access of user profiles. Although sophisticated attacks may be able to easily bypass MFA, common phishing attacks can be stopped with MFA in place.
- Profile usage policies: Retaining user profiles that are enabled but not in use increases the threat factor on a system, and keeping profiles of former employees poses an even bigger threat of unauthorized access being gained. With key stakeholders in your company, determine the appropriate period of inactivity time acceptable for your business and regularly monitor users to be disabled and deleted. There should be a multi-department process in place to include deprovisioning users when an employee leaves the company.
#4: System Configuration
The IBM i is well known for its secure architecture, but do not assume the default configuration is a secure configuration. Take advantage of security-related system values that are provided with the operating system to harden your server before deploying it into a production environment.
The IBM i comes equipped with highly secure auditing technology, but it must be enabled to reap its benefits. Other platforms provide logging features, but these can often be altered since the log data is stored in simple text files. Conversely, when log data is entered in IBM i’s security audit journal, there is no way for it to be tampered with.
Without auditing configured, there is no way to perform forensic research on a system should a breach be suspected. Many people claim their IBM i has never had a security breach, but without auditing in place and being monitored, there is really no way to validate that claim or confirm any suspicions.
In today’s cyber climate, it has become the norm for the general public to expect security measures to be in place to protect the data you have gathered about them. Indeed, there are many regulations that apply to general online security practices as well as industry-specific criteria where compliance must be achieved. But even without the requirements of regulatory compliance, in the case of a security breach, an organization is faced with a lot of pressure to retain or regain trust and reputation in the sight of the customer base, not to mention the obvious financial hardship that can ensue.
It's a Good Start
While this is not an exhaustive list of all the security components that affect IBM i, paying attention to these major areas and incorporating them into your security strategy will greatly improve the protection of your IBM i business assets.
Voice AI technology is rapidly evolving, promising to transform enterprise operations from customer service to internal communications.
By , IBM Corporation
In the last few weeks, OpenAI has launched new tools to simplify the creation of AI voice assistants and expanded its Advanced Voice Mode to more paying customers. Microsoft has updated its Copilot AI with enhanced voice capabilities and reasoning features, while Meta has introduced voice AI to its messaging apps.
We are now at a crucial stage in our evolution with enterprise generative AI. While consumer generative AI has captured the imagination of millions, executives are developing the practices that can deliver an effective and responsible strategy for enterprise generative AI.
According to our CEO survey, 60% of organizations are not yet developing a consistent, enterprise-wide approach to generative AI. IBM® is in a unique position to help. The company has a rich history of innovation, combined with a deep understanding of what organizations need. It has a legendary track record of building great technology and helping clients deliver business transformation reliably. It makes it the perfect place for me to contribute to shaping the future of our industry.
To better understand how IT leaders are leveraging mainframes today and envisioning their future in the era of AI and hybrid cloud, the IBM Institute for Business Value, (IBV) in collaboration with Oxford Economics, conducted a survey of 2,551 global IT executives. The findings show the mainframe is already playing a pivotal role in supporting AI innovation, hybrid cloud strategies, and acceleration of digital transformation. With unmatched security and processing capabilities, the mainframe powers 70% of global transactions, on a value basis.
By , IBM Corporation
Mainframes have proven their vitality through their ability to process vast amounts of data quickly, reliably and securely, and they will be key to unlocking the full potential of data-driven innovation.
Current Events All Events
Learn how to safeguard your IBM i with security monitoring, benchmarking and automated audits.
1 PM EST on October 29, 2024
Admins and security teams tasked with securing IBM i can have a tough job. From understanding the current configuration, to aligning with industry benchmarks and making sure controls are maintained over time - it's a lot of work. And, in the words of Kisco's Carol Woodbury, it's also a lifestyle. The work of securing IBM i never stops.
With the new release of iSecMap, Kisco has positioned the product as the security admin's best friend. In this webinar we'll learn how to use iSecMap to:
- Report on your current security configuration
- Remediate your configuration to CIS Benchmarks
- Maintain a baseline security configuration
- Automate security audit
iSecMap is the easiest way to get stay and stay secure on IBM i. Join us at 1:00 PM ET on October 29 as we explore the world of IBM i security and the latest iSecMap product updates.
The session will be hosted on Zoom. Registration is required.
- 29 October 2024 - 29 October 2024
- World Wide Web
October 21-24, 2024
Mandalay Bay – Las Vegas
Register early to save 20%.
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