If you’re pressed for time, this quick review can help you verify that your security configuration hasn’t gone totally sideways.
It’s rare that people have extra time. And while most administrators don’t want to admit it, many are so pressed for time they ignore security altogether. So here are five things you can do to take a quick look at security to make sure the most critical configurations on your IBM i have been examined.
1. Look for Default Passwords
OK, this one’s easy, and hopefully everyone thinks to do this anyway. Making sure no profiles with a default password exist (that is, a profile where the password equals the profile) is quick and easy. Simply run the Analyze Default Password (ANZDFTPWD) command. If any profiles are listed on the report, take steps to get the password changed!
2. Review the Profiles with *ALLOBJ
Periodically reviewing the list of profiles with *ALLOBJ special authority is critical to ensuring a profile hasn’t been inadvertently created with more authority than intended or left with authority when the intent was to assign it temporarily.
A couple of methods exist for listing profiles’ special authorities. You can run the Print User Profile command PRTUSRPRF TYPE(*AUTINFO), which produces a spooled file listing of all profiles on the system along with their group profile(s) and any special authorities assigned. This method works if you don’t have many profiles on the system. However, visual verification is often error prone. I prefer using the QSYS2.USER_INFO SQL view to list the information. In fact, IBM has provided an example to produce this exact information. Simply open ACS and click on Run SQL Scripts. When that window opens, click on Edit > Examples > Insert from Examples. Using the dropdown, choose IBM i Services and then scroll down until you get to the security examples. Click on Security – Review *ALLOBJ Users. You can preview the SQL, and if you choose to use it, click on Insert. You may want to add additional fields such as the Last Used Date and perhaps the special authority and group profile fields so you can see where the *ALLOBJ is coming from (the profile itself or their group).
3. Examine the File Shares That Have Been Defined
PCs connected to the system via a file share make IBM i vulnerable to being infected with ransomware. When examining the file shares, look for new file shares, making sure they’ve been created as a read-only share if possible. Also examine the list of read-write shares to determine if they can be reduced to read-only. Finally, review the list for shares no longer required. They should be removed if they are not needed. To list the file shares that have been defined, open Navigator for i > File Systems > Integrated File Systems > File Shares.
4. Verify That System Values Haven’t Been Changed
For this exercise, I’m (obviously) most interested in the security-relevant system values, although you may have others from a system administration point of view you’d want to verify as well. The easiest way to list the security-relevant system values is to run the Work with System Values command WRKSYSVAL SYSVAL(*SEC) OUTPUT(*) to produce a spooled file listing of the security-relevant system values. You can also run the Print System Security Attributes (PRTSYSSECA) command, which provides a comparison of the system’s current settings with IBM’s recommended settings, but I don’t agree with some of the recommendations, so I’m not a huge fan of this command. Finally, there’s an SQL view, QSYS2.SYSTEM_VALUE_INFO, that you can use to list the current value. In this case, you’d create a WHERE clause that lists the values you want retrieved so you aren’t pouring through the entire set of system values. The system values I’d review include:
- QSECURITY
- QPWDRULES (hopefully everyone’s migrated to using this value rather than the individual QPWD* values)
- QPWDEXPITV
- QMAXSIGN
5. Verify Authorities That Authorities Haven’t Been Modified
It’s likely that you have one or more libraries, database files, or directories that you have taken the time to secure. Now’s the time to verify that those authorities haven’t been modified. Once again, several methods exist to list these authorities. One is obviously to run either the Display or Edit Object Authority (DSP/EDTOBJAUT) command or Display Authority (DSPAUT) for IFS objects. Another is to navigate to the object via Navigator for i, right-click, and choose Permissions. But once again, my favorite is to use an SQL view. For objects in libraries, use QSYS2.OBJECT_PRIVILEGES view. For IFS objects, use QSYS2.IFS_OBJECT_PRIVILEGES.
If the object has been secured with an authorization list, don’t forget to review those authorities. I can’t tell you the number of times a client has thought an object was secure but, when we reviewed the authorization list securing it, realized that either the *PUBLIC authority setting had been opened up or a private authority had been granted, providing access to the majority of the system’s users. To list the users authorized to an authorization list, run the Display Authorization List (DSPAUTL) command or use the QSYS2.AUTHORIZATION_LIST_USER_INFO view.
If you don’t have any other object authority settings to review, I’d at least review the authority to root (/) to ensure that, if you’ve set it to the recommended *PUBLIC authority setting (DTAAUT(*RX) OBJAUT(*NONE)), it hasn’t been changed.
Summary
Admittedly, this review may take slightly more than five minutes; however, even when pressed for time, this quick review can help you verify that your security configuration hasn’t gone totally sideways.
Carol Woodbury is IBM i Security SME and Senior Advisor to Kisco Systems, a firm focused on providing IBM i security solutions. Carol has over 30 years’ experience with IBM i security, starting her career as Security Team Leader and Chief Engineering Manager for iSeries Security at IBM in Rochester, MN. Since leaving IBM, she has co-founded two companies: SkyView Partners and DXR Security. Her practical experience and her intimate knowledge of the system combine for a unique viewpoint and experience level that cannot be matched.
Carol is known worldwide as an author and award-winning speaker on security technology, specializing in IBM i security topics. She has written seven books on IBM i security, including her two current books, IBM i Security Administration and Compliance, 3rd Edition and Mastering IBM i Security, A Modern, Step-by-Step Approach. Carol has been named an IBM Champion since 2018 and holds her CISSP and CRISC security certifications.
MC Press books written by Carol Woodbury available now on the MC Press Bookstore.
 |
||
 |
|
IBM i Security Administration and Compliance: Third Edition Don't miss the newest edition by the industry’s #1 IBM i security expert. List Price $71.95 Now On Sale
|
 |
|
Mastering IBM i Security Get the must-have guide by the industry’s #1 security authority. List Price $49.95 Now On Sale
|
More than ever, there is a demand for IT to deliver innovation. Your IBM i has been an essential part of your business operations for years. However, your organization may struggle to maintain the current system and implement new projects. The thousands of customers we've worked with and surveyed state that expectations regarding the digital footprint and vision of the company are not aligned with the current IT environment.
TRY the one package that solves all your document design and printing challenges on all your platforms. Produce bar code labels, electronic forms, ad hoc reports, and RFID tags – without programming! MarkMagic is the only document design and print solution that combines report writing, WYSIWYG label and forms design, and conditional printing in one integrated product. Make sure your data survives when catastrophe hits. Request your trial now! Request Now.
Forms of ransomware has been around for over 30 years, and with more and more organizations suffering attacks each year, it continues to endure. What has made ransomware such a durable threat and what is the best way to combat it? In order to prevent ransomware, organizations must first understand how it works.
Disaster protection is vital to every business. Yet, it often consists of patched together procedures that are prone to error. From automatic backups to data encryption to media management, Robot automates the routine (yet often complex) tasks of iSeries backup and recovery, saving you time and money and making the process safer and more reliable. Automate your backups with the Robot Backup and Recovery Solution. Key features include:
Business users want new applications now. Market and regulatory pressures require faster application updates and delivery into production. Your IBM i developers may be approaching retirement, and you see no sure way to fill their positions with experienced developers. In addition, you may be caught between maintaining your existing applications and the uncertainty of moving to something new.
IT managers hoping to find new IBM i talent are discovering that the pool of experienced RPG programmers and operators or administrators with intimate knowledge of the operating system and the applications that run on it is small. This begs the question: How will you manage the platform that supports such a big part of your business? This guide offers strategies and software suggestions to help you plan IT staffing and resources and smooth the transition after your AS/400 talent retires. Read on to learn:
LATEST COMMENTS
MC Press Online