Author Archives: Brent Huston

About Brent Huston

I am the CEO of MicroSolved, Inc. and a security evangelist. I have spent the last 20+ years working to make the Internet safer for everyone on a global scale. I believe the Internet has the capability to contribute to the next great leap for mankind, and I want to help make that happen!

3 Quick Thoughts for Small Utilities and Co-Ops

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Recently I was asked to help some very small utilities and co-ops come up with some low cost/free ideas around detection. The group was very nice about explaining their issues, and here is a quick summary of some of the ideas we discussed.

1) Dump external router, firewall, AD and any remote access logs weekly to text and use simple parsers in python/perl or shell script to identify any high risk issues. Sure, this isn’t the same as having robust log monitoring tools (which none of these folks had), but even if you detect something really awful a week after it happens, you will still be ahead of the average curve of attackers having access for a month or more. You can build your scripts using some basis analytics, they will get better over time, and here are some ideas to get you started. You don’t need a lot of money to quickly handle dumped logs. Do the basics and improve.

2) Take advantage of cheap hardware, like the Raspberry Pi for easy to learn/use Linux boxes for scripting, log parsing or setting up cron jobs to automate tasks. For less than 50 bucks, you can have a powerful machine to do a lot of work for you and serve as a monitoring platform for a variety of tools. The group was all tied up in getting budget to buy server and workstation hardware – but had never taken the Pi seriously as a work platform. It’s mature enough to do a lot of non-mission critical (and some very important) work. It’s fantastic if you’re looking for a quick and dirty way to gain some Linux capabilities in confined Windows world.

3) One of the best bang for the buck services we have at MSI is device configuration reviews. For significantly less money than a penetration test, we can review your external routers, firewall and VPN for configuration issues, improper rules/ACLs and insecure settings. If you combine this with an exercise like attack surface mapping and threat modeling, you can get a significant amount of insight without resorting to (and paying for) vulnerability assessments and penetration testing. Sure, the data might not be as granular, and we still have to do some level of port scanning and service ID, but we have a variety of safe ways to do that work – and you get some great information. You can then make risk-based decisions about the data and decide what you want to act on and pay attention to. If your budget is tight – get in touch and discuss this approach with us.

I love to talk with utilities and especially smaller organizations that want to do the right thing, but might face budget constraints. If they’re willing to have an open, honest conversation, I am more than willing to get creative and engage to help them solve problems within their needs. We’d rather get creative and solve an issue to protect the infrastructure than have them get compromised by threat actors looking to do harm.

If you want to discuss this or any security or risk management issue, get in touch here.  

Utility Tabletop Cybersecurity Exercises

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Recently, a group of federal partners, comprised of the Federal Energy Regulatory Commission (FERC), North American Reliability Corporation (NERC) and it’s regional entities released their Cyber Planning for Response and Recovery Study (CYPRES). The report was based on a review and analysis of the incident response and recovery capabilities of a set of their member’s cyber security units, and is a great example of some of the information sharing that is increasing in the industry. The report included reviews of eight utility companies’ incident response plans for critical infrastructure environments, and the programs reviewed varied in their size, complexity and maturity, though all were public utilities.

Though the specific tactics suggested in the report’s findings have come under fire and criticism, a few items emerged that were of broad agreement. The first is that most successful programs are based on NIST 800-61, which is a fantastic framework for incident response plans. Secondly, the report discusses how useful tabletop exercises are for practicing responses to cybersecurity threats and re-enforcing the lessons learned feedback loop to improve capabilities. As a result, each public utility should strongly consider implementing periodic tabletop exercises as a part of their cyber security and risk management programs.

Tabletop Exercises from MSI

At MicroSolved, we have been running cyber security tabletop exercises for our clients for more than a decade. We have a proprietary methodology for building out the role playing scenarios and using real-world threat intelligence and results from the client’s vulnerability management tools in the simulation. Our scenarios are developed into simulation modules, pre-approved by the client, and also include a variety of randomized events and nuances to more precisely simulate real life. During the tabletop exercise, we also leverage a custom written gaming management system to handle all event details, track game time and handle the randomization nuances.

Our tabletop exercise process is performed by two MSI team members. The first acts as the simulation moderator and “game master”, presenting the scenarios and tracking the various open threads as the simulation progresses. The second team member is an “observer” and they are skilled risk management team members who pre-review your incident response policies, procedures and documentation so that they can then prepare a gap analysis after the simulation. The gap analysis compares your performance during the game to the process and procedure requirements described and notes any differences, weaknesses or suggestions for improvement.

Target scenarios can be created to test any division of the organization, wide scale attacks or deeply nuanced compromises of specific lines of business. Various utility systems can be impacted in the simulation, including business networks, payment processing, EDI/supply chain, metering/AMI/smart grid, ICS/SCADA or other mission critical systems.Combination and cascading failures, disaster recovery and business continuity can also be modeled. In short, just about any cyber risks can be a part of the exercise.

Tabletop Exercise Outcomes and Deliverables

Our tabletop exercises result in a variety of detailed reports and a knowledge transfer session, if desired. The reports include the results of the policy/procedure review and gap analysis, a description of the simulated incident and an action plan for future improvements. If desired, a board level executive summary can also be included, suitable for presentation to boards, management teams, direct oversight groups, Public Utility Commission and Homeland Security auditors as well.

These reports will discuss the security measures tested, and provide advice on proactive controls that can be implemented, enhanced, matured or practiced in order to display capabilities in future incidents that reflect the ability to perform more rapid and efficient recovery.

The knowledge transfer session is your team’s chance to ask questions about the process, learn more about the gaps observed in their performance and discuss the lessons learned, suggestions and controls that call for improvement. Of course the session can include discussions of related initiatives and provide for contact information exchange with our team members, in the event that they can assist your team in the future. The knowledge transfer session can also be performed after your team has a chance to perform a major review of the reports and findings.

How to Get Started on Tabletop Exercises from MSI

Tabletop exercises are available from our team for cyber security incidents, disaster preparedness and response or business continuity functions. Exercises are available on an ad-hoc, 1 year, 2 year or 3 year subscription packages with frequencies ranging from quarterly to twice per year or yearly. Our team’s experience is applicable to all utility cyber programs and can include any required government partners, government agencies or regulators as appropriate.

Our team can help develop the scope of threats, cyber attacks or emergency events to be simulated. Common current examples include ransomware, phishing-based account compromises, cyber attacks that coincide with catastrophic events or service disruptions, physical attacks against substations or natural gas pipelines, data breach and compromise of various parts of the ICS/SCADA infrastructure. Our team will work with you to ensure that the scenario meets all of your important points and concerns.

Once the scenario is approved, we will schedule the simulation (which can be easily performed via web-conference to reduce travel costs and facilitate easy team attendance) and build the nuances to create the effects of a real event. Once completed, the reporting and knowledge transfer sessions can follow each instance.

Tabletop exercises can go a long way to increasing cybersecurity preparedness and re-enforcing the cybersecurity mindset of your team. It can also be a great opportunity for increasing IT/OT cooperation and strengthening relationships between those team members.

To get started, simply contact us via this web form or give us a call at (614) 351-1237. We would love to discuss tabletop exercises with you and help you leverage them to increase your security posture.

 

All About FINRA Risk Assessments

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FINRA (Financial Industry Regulatory Authority) requires an enterprise risk assessment once per year for all member firms. This risk assessment should be completed using the NIST Cyber-Security Framework, if appropriate for the size of the organization. At MSI, we fully embrace the NIST framework and use it routinely for our approach to information security and risk management.

Who Performs the FINRA Risk Assessment?

The FINRA requirements for risk assessment include that it be completed by independent third-party assessors, if possible, or otherwise by internal information security experts (if qualified and available). MSI’s approach is to work WITH our client’s internal team members, including them in the process, and leveraging their deep knowledge of the firm’s operations, while still maintaining our independence. In our experience, this provides the best return on investment for the risk assessment, and allows granular analysis without draining critical internal client resources.

What Analysis Does the FINRA Risk Assessment Require?

Each FINRA risk assessment should include an inventory of all critical data, PII and other sensitive information. Then, each asset should be reviewed for its impact on the business and identification of relevant controls, risks, mitigations and residual risks should occur. This process requires deeper knowledge of cyber security than most firms are comfortable with, and the experience and attention to detail of the assessor can make or break the value of the assessment.

Is the FINRA Risk Assessment Affordable?

Since the workload of a risk assessment varies greatly based on the size and complexity of the organization being assessed, smaller firms are naturally more affordable than larger firms. Risk assessments are affordable for nearly every firm today, and the work plans can be easily customized to fit even the tightest of budgets. In addition, when working with experienced and knowledgable assessors, the cost can be even lower and the results even more valuable. At MSI, our assessment team has more than 15 years of experience, across a wide variety of size, type and operational styles of client firms. You won’t find any “on the job training” here, our experts are among the best and most recognized in the world. We are excellent at what we do, and we can help your firm get the best ROI on a risk assessment in the industry.

How Do I Get Started on a FINRA Risk Assessment from MSI?

Simply drop us a line via this web form, or give us a call at (614) 351-1237 to arrange for a free, no hassle call with our team. We’ll explain how our process works, gather some basic information and provide you with a proposal. We’d love the chance to talk with you, and be of service to your firm. At MSI, we build long-term client relationships and we truly want to partner to help your firm be more successful, safer and manage the risks of the online world more easily. Give us a call today! 

Car Dealership Threat Scenario – Wireless Printer Hacking AP Fraud

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Today, I wanted to talk about a threat scenario that we have modeled recently. In the scenario, the victim was a car dealership, and the target was to commit accounts payable fraud. The testing scenario is a penetration test against a large group of car dealerships, but our research shows the threat to be valid against any number of organizations. 

Here’s the basics of the scenario:

  • The team found a car dealership with an extensive wireless network. Though the network was encrypted and not available to the public, the team was able to compromise the wireless credentials using a wifi pineapple in a backpack, while pretending to shop for a new car.
  • The team used the credentials to return later, appearing to wait for a service visit and working from the customer lounge. (The coffee and snacks were great! )
  • The team logged into the wireless network and quickly identified many devices, workstations and such available. Rather than focus on the workstations or attempt an attack on the users – the team instead focused on the shared printers.
  • One printer was identified with the name “BackOffice”, and access to the print spool was easily obtained through known default passwords which hadn’t been changed on the device.
  • Our team made notes of attack their recon attack path, and left the dealership.
  • Once away from the dealership a couple of simple social engineering calls were made to the accounts payable folks, pretending to be a vendor that we had observed at work at the facility. Without any real information, the accounts payable team member explained when we could expect payment, because accounts payable checks were processed every Thursday morning. The social engineer thanked them and completed the call.
  • On Thursday morning, the team showed up at the dealership again, pretending to wait for a service appointment. While in the lounge, they accessed the compromised network and printer. This time, taking deeper control of the printer’s file buffer.
  • The team waited for the accounts payable staff to submit their weekly check printing to the printer. Indeed, around 10:45, the printer file showed up in the printer spool, where our penetration testing team intercepted it. 
  • The team quickly edited the file, changing one of the checks in amount (increasing the amount by several thousand dollars) and the payee (making the check payable to a fictional company of our choosing). They also edited the mailing address to come to our office instead of the original vendor. (PS – we alerted the manager to this issue, so that the bill could be paid later — never harm a client while doing testing!!!)
  • The file was then re-sent to the printer and released. The whole process occurred in under 3 minutes, so the AP person never even noticed the issue.
  • One expected control was that perhaps the AP staff would manually reconcile the checks against their expected checks, but this control was not in place and the fake check was mailed to us (we returned it, of course!).

This is a pretty simple attack, against a very commonly exploitable platform. Poor wireless network security and default installs of printer systems are common issues, and often not given much thought in most dealerships. Even when organizations have firewalls and ongoing vulnerability scanning, desktop controls, Anti-Virus, etc. – this type of attack is likely to work. Most organizations ignore their printers – and this is an example of how that can bite you.

These types of threat scenarios are great examples of our services and the threat modeling, fraud testing and penetration testing available. If you’d like to learn more about these kinds of activities, or discuss how to have them performed for your organization – get in touch. You can contact us via web form or give us a call at (614) 351-1237. You can also learn more about our role and services specific to car dealerships here.

Thanks for reading and let me know if you have any questions – @lbhuston on Twitter.

Business Email Compromise Attacks on Dealerships

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Business email compromise attacks are a significant threat to car dealerships.

Among the car dealerships we work with, two large threats represent the most significant risks at the moment. The first is ransomware, which we have covered extensively on this blog. The second, business email compromise, we’ve also talked a lot about, but mostly in terms of traditional financial services firms. However, business email compromise is one of the most common cybersecurity attacks today and, according to the FBI’s Internet Crime Complaint Center, costs American firms $1.7 billion in 2019, while worldwide losses might well have reached over $5 billion!

How big is the risk of a business email compromise in a dealership?

Business email compromise attacks occur every single day across a variety of industries. Business email compromises typically occur via two specific attack vectors: phishing and stolen credential reuse. Most of our dealerships have significant controls around phishing, with those detection systems reporting tens to hundreds of attempts per day. While the phishing tools are good enough to stop the vast majority of common phishing attacks, there are some that make it through the network and computer-based defenses. When this happens, it is up to the humans in the dealership to be aware enough of the issue, be paying enough attention and have good enough training to prevent the phishing message from becoming a compromise.

In the second attack vector for business email compromise, attackers reuse stolen or leaked credentials (logins and passwords) that have become available on the Internet. There are several common forums and pastebin-type sites where these credentials are dumped, traded or sold (if you want to learn about a common tool to help monitor for these issues, check out ClawBack) and attackers monitor these sites with various tools. Once they see a leaked set of credentials, they try and use it on the web mail logins of their targets. If the user has the same login and password across many sites (many do), then the attacker may compromise the web mail account and be logged into the corporate email system as the user.

What happens in a typical business email compromise in a dealership?

Once the attacker has access to the email system, they will often spend a little time reading the emails and browsing through any files that the email server maintains. If the system includes chat capabilities, they often read those as well. They do this to learn about the user, their position and what the attacker may be able to use the compromised account to do. If any valuable information is in the email archive or on exposed files, they often steal that data right away for resale.

It’s not uncommon for attackers to set a forwarding address for compromised mail accounts, redirecting copies of emails to themselves so that they can monitor the email activity of the user without logging back into the server – thus reducing their chances of being discovered. If the compromised account doesn’t seem useful to the attacker, they will often use it to send phishing emails to other people in the address book, including other internal users, business partners, customers and the like. These phishing attacks are often highly successful, given that they come from a trusted contact and the attacker can tailor the language and tone of the email to match usual conversations.

Once the attacker gets access to an account that they feel is capable of either gaining them network access (think executives who can make requests of subordinates) or allow them to move money (think about accounts payable, wire, ACH and other banking fraud), they will use the email account to send messages, forms (if available) or other requests to get what they want. Again, these attacks are often highly successful, because the attacker comes from a known account, can tailor the language and tone of the messages, and can use social engineering techniques to apply pressure to the victims in order to get them to do things they might not ordinarily do.

What can dealerships do to prevent business email compromises?

Dealerships can combat business email comprise attacks by ensuring that their phishing and authentication defenses are up to par. They can train their team members to be on guard for messages that apply pressure, declare urgency or ask for unusual activities. The dealership can implement training and protocols for voice validation checks for unusual requests and perform ongoing testing of these types of scenarios to educate and keep their staff on guard.

Dealerships can also be vigilant about their email systems, configuring them to apply controls, ensure that logging and other security measures are in place. They can implement multi-factor authentication. They can have ongoing assessments and penetration testing – including business email comprise-based scenarios.

Reducing the risk is doable, but it does require work, investment and continued vigilance. Attackers only have to be right once, while the security controls and your team have to be right every single time to prevent losses. With incidents ranging from tens of thousands of dollars to hundreds of thousands of dollars in losses – paying attention to business email compromises is critical for dealerships of all sizes.

To learn more about tools, techniques and testing to help your organization prevent, detect and respond to business email compromise attacks, get in touch with our team at SecureDrive Alliance for more information and a free risk discussion today.

ClawBack For Credit Unions

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I got a question recently from one of our Credit Union clients about ClawBack™. They explained that they don’t really do any internal development, so leaking source code was not a concern for them. Based on that, they wondered, would ClawBack still be a useful tool for them?

I pointed out that most larger Credit Unions do some form of development, or at the very least, that their systems admin folks often write (and potentially expose) scripts and other management tools that would be of use to an attacker. However, even if they didn’t do any development at all, leveraging something like the Professional level of ClawBack as a DIY tool ($149.00 per month) is still a good idea.

Further, I explained that source code leaks are only one third of the focus of the ClawBack tool. It also searches for leaked device/application configurations and leaked credentials. Every Credit Union with a network needs to think about leaked device and application configurations. These are the most commonly found items in ClawBack’s history. Whether by accident, or misunderstanding or malicious intent, thousands of leaked configuration files wind up on the Internet in repositories, support forums, answer sites, social media and paste bins. When found, they can provide significant amounts of damaging information to attackers, ranging from logins and passwords to sensitive cryptography and API keys. In some cases, they can be a nearly complete map of the internal network.

Thirdly, ClawBack also focuses on leaked credentials. It can help identify stolen and compromised passwords belonging to members of your organization. Many times, these credentials contain the same or similar passwords as Internet exposed applications, webmail or email access and potentially even weakly secured VPN instances. Stolen and leaked credentials are among the most significant root causes of breaches, business email compromise and a variety of other fraud.

Your CU Security team can add ClawBack to their toolkit for less than $150 per month. It’s simple to use, flexible and an incredibly powerful capability to minimize the damage from data leaks. Check out this less than 8 minute video for more information. If you’d like to discuss ClawBack or our ClawBack Managed and Professional Services, please drop us a line, or give us a call at (614) 351-1237 today. 

Closing the CUSO Security Loop Hole

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The CUSO Security Loop Hole

The NCUA Inspector General (IG) suggested this week that the agency have regulatory oversight of Credit Union Service Organizations (CUSOs) to reduce the overall risk to the system. CUSOs have long been seen as a separate firm from the credit unions, though they may have an ownership stake in them. To date, many of these organizations have been outside the regulatory and oversight controls that are applied to the very credit unions they serve. In terms of information security, that often means they aren’t held to the same level of security and risk management controls as required by NCUA 748 and other guidance.

DigitalMoneyCUSO Security Oversight Challenges

The NCUA IG suggests that NCUA guidance and regulatory oversight be directly applied to CUSOs, instead of through vendor or partner risk management programs of the CUSO customers. This would provide for more direct regulation of the security controls and risk management processes in use at the CUSOs themselves. However, this introduces several challenges for some CUSOs, who may be more focused on agility, market speeds and innovation – areas where regulatory guidance can be especially impactful and can create significant budgetary challenges. This gets even more complicated when regulatory guidance is vague, or can be inflexible – the very opposite of the needs of organizations focused on innovation and market speed adaptation. An excellent example of this is CUSOs working on financial technologies, crypto currencies, blockchain and other exciting new areas. Regulatory guidance lags or lacks in most of those areas and hasn’t caught up to these new, and in some cases, experimental technologies.

One Approach – Best Practices CUSO Security and Third Party Attestation

One approach that might work, is for CUSOs to work with independent third-party assessors who could then measure the CUSO against industry standard best practices that apply to their specific lines of business, research or innovation. These vendors could then help the CUSO build a relevant and respectable CUSO security and risk management program – which they could attest to the NCUA. If this attestation were required on a yearly basis, along with some basic guidance, like ongoing risk management reviews, ongoing vulnerability management, etc – this could go a long way to mitigating the risks that concern the NCUA IG, while still maintaining independence and control by the CUSOs – thus, empowering their mission. Programs like these have been very successful in other industries and don’t have to add the overhead and bureaucracy of full regulatory compliance or programs like PCI-DSS. 

If you’d like to build such a program for your CUSO, please get in touch with us. We’d love to work on creating this process with a handful of CUSOs around the US, and are more than capable of applying our 30 years of experience in information security to each organization’s independent needs. Drop us a line or give us a call at (614) 351-1237 and let’s work together to close the CUSO Security loop hole in a way that reduces risk but doesn’t destroy the power and flexibility of the CUSO ecosystem.

3 Things Attackers Can Leverage From a Device Configuration Leak

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One of the questions I often get around our ClawBack data leak detection SaaS product is “What can a hacker get from a leaked config?”. I put together this quick post about three of the most common and powerful elements that we often find in leaked configurations we discover.

1) Credentials – Let’s face it, credentials are often the easiest way to leverage leaked configs. Sure, it might be for an edge router or some network gear, or maybe it’s for the VPN. Configs often contain sets of credentials, either in plain text or in hashed form. Hashes need to be cracked, sure, but that is often quite possible. Even when the credentials aren’t able to be used remotely, they often help us tune our password guesses and learn more about the policies and password requirements of other systems. You wouldn’t believe the number of times, though, that the credentials from a leaked config simply work across the network or enterprise and often at a significantly powerful level. 

2) Encryption Keys – Leaked router, firewall or VPN device configurations often contain encryption keys. While these still require an attacker to be in a position to gather traffic, they are very useful to well resourced attackers with that capability. If you’re at the level of risk where you need to worry about nation-state or politically motivated attackers, you really don’t want to leak your encryption keys. In addition to simply being a significant issue going forward, leaking encryption keys is a “long tail” vulnerability, because it provides cryptanalysis capabilities to adversaries who might have historic traffic archived, that the leak makes possible for them to leverage. Thus, the life of the key becomes the window of vulnerability. This is especially true when static cryptographic protocols are in use.

3) Network Recon Data – From IP addresses to firewall rules and from SNMP strings to dynamic routing data, device configurations can provide a veritable treasure trove of recon data about your environment. Partner connections, vendors with remote access, interconnects with other environments and the general day to day operations of the computing systems can often be found in leaked configurations. Depending on the type and criticality of the device, the config can often give up a complete view of the guts of the organization.

That’s just the top 3. We’ve seen thousands of leaked configurations in our work on ClawBack and penetration testing. It’s no doubt that leaked configs are useful to the attacker. The big question is, if you had leaked configurations out in the world, would you know about it? Would you know how to hunt them down, claw them back and mitigate the damage? If not, or if the idea makes you nervous, give us a call. We’re happy to help you solve these problems. You can get in touch by calling 614-351-1237 or drop us an email at info@microsolved.com. 

ClawBack Professional and Managed Services Launched

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Clawback small

ClawBack™, our data leak detection engine which we released last fall, is a cloud-based SaaS tool focused on helping organizations detect leaked source code, device/application configurations and credentials. You can learn more about the product and why we made it in this quick 8 minute video by clicking here.

While ClawBack has been a very successful product in its own right, the SaaS platform is primarily “Do It Yourself” in terms of operations. It’s easy to use and manage, but the customer does the work of reviewing the alerts and managing the responses. Over the last several months, some clients have asked for a managed service option, where MSI will manage the ClawBack product, review the alerts and work with the customer to issue take downs or provide mitigation advice. Today, we are proud to announce the immediate availability of the ClawBack Managed Service. Now you can get the power and vigilance of ClawBack without the overhead of managing and monitoring the product directly, reviewing the alerts and issuing appropriate take down requests.

Several clients have also asked us about other professional services associated with ClawBack and with Data Leak Prevent/Protection (DLP) capabilities in general. MSI is also proud to announce the immediate availability of the following associated professional services:

  • Monitoring term identification, optimization and improvement
  • Watermark implementation in source code and device configurations
  • Data leak awareness training, especially focused on source code, configurations and credentials
  • Data leak impact modeling and table top simulations
  • 30/60/90 day data leak assessments
  • Exfiltration testing and Data Loss Prevention (DLP) assessments and optimization
  • Data classification and data leak policy and process development and reviews

Additionally, we are launching multiple year packages that combine these services in 3 and 5 year plans, allowing our clients to create long term solutions to the problems of data leakage, intellectual property risk management and compromises stemming from leaked source code, configs and credentials. To learn more about these services or create a package that fits your firm’s needs, give us a call at 614-351-1237 or drop us a line (info@microsolved.com).

WARNING: Migrate Windows Server 2003 Immediately

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Believe it or not, we still get queries from a few utility companies that have operational processes locked on Windows Server 2003 as a platform. Most of the time, these are legacy applications associated with some form of ICS device or data management system that they have not been able to afford to replace.

Windows 2003 Server end-of-life searches are still among the most popular searches on our StateOfSecurity.com blog, receiving more than 200 queries most months. Keep in mind, this is an operating system that patches haven’t been released for since 2015. According to Spiceworks, an online community for IT professionals, the Windows 2003 Server operating system still enjoys a market share of 17.9%, though we could not validate the time frames of their claim.

But, just in the last year or so, we have seen it alive and well in natural gas, energy and the communications infrastructures, both foreign and domestic. So, we know it is still out there, and still being used in seemingly essential roles.

I’m not going to lecture you about using a system that is unmatched for 5 years. That’s just common sense. Instead, what I am going to do is make three quick suggestions for those of you who can’t get rid of this zombie OS. Here they are:

1. Install a firewall or other filtering device between the legacy system and the rest of your environment. This firewall should reduce the network traffic allowed to the system down to only specifically required ports and source addresses. It should also restrict all unneeded outbound traffic from the device to anything else in the network or the world. The device should be monitored for anomalies and security IOCs.

2. If the hardware is becoming an issue, as well, consider virtualizing the system using a modern virtualization solution. Then apply the firewalling above. Server 2003 seems to be easily virtualized and most modern solutions can handle it trivially.Hardware failure of many of these aging systems is their largest risk in terms of availability.

3. Eliminate the need AS SOON AS POSSIBLE. Even with the firewalling and filtering, these systems have high risk. You might also consider if you can migrate portions of the services from Windows 2003 to a more recent system or platform. This isn’t always possible, but everything you can move from Windows 2003 to a supported OS is likely to let you crank down your filtering even more.

Lastly, if you’re still trapped on Windows 2003, make sure you review this every quarter with the application owners and management. Keep it on their mind and on the front burner. The sooner you can resolve it, the better. 

If you need more help or advice on risk mitigation or minimization, get in touch. We’d love to help! Just email us at info@microsolved.com and we can connect.