At Black Hat USA 2020, Trend Micro presented two important talks on vulnerabilities in Industrial IoT (IIoT). The first discussed weaknesses in proprietary languages used by industrial robots, and the second talked about vulnerabilities in protocol gateways. Any organization using robots, and any organization running a multi-vendor OT environment, should be aware of these attack surfaces. Here is a summary of the key points from each talk.
Rogue Automation
Presented at Black Hat, Wednesday, August 5. https://www.blackhat.com/us-20/briefings/schedule/index.html#otrazor-static-code-analysis-for-vulnerability-discovery-in-industrial-automation-scripts-19523 and the corresponding research paper is available at https://www.trendmicro.com/vinfo/us/security/news/internet-of-things/unveiling-the-hidden-risks-of-industrial-automation-programming
Industrial robots contain powerful, fully capable computers. Unlike most contemporary computers, though, industrial robots lack basic information security capabilities. First, at the architectural level, they lack any mechanism to isolate certain instructions or memory. That is, any program can alter any piece of storage, or run any instruction. In traditional mainframes, no application could access, change, or run any code in another application or in the operating system. Even smartphone operating systems have privilege separation. An application cannot access a smartphone’s camera, for instance, without being specifically permitted to do so. Industrial robots allow any code to read, access, modify, or run any device connected to the system, including the clock. That eliminates data integrity in industrial robots and invalidates any audit of malfunctions; debugging becomes exceptionally difficult.
Industrial robots do not use conventional programming languages, like C or Python. Instead, each manufacturer provides its own proprietary programming language. That means a specialist using one industrial robot cannot use another vendor’s machine without training. There are no common information security tools for code validation, since vendors do not develop products for fragmented markets. These languages describe programs telling the robot how to move. They also support reading and writing data, analyzing and modifying files, opening and closing input/output devices, getting and sending information over a network, and accessing and changing status indicators on connected sensors. Once a program starts to run on an industrial robot, it can do anything any fully functional computer can do, without any security controls at all. Contemporary industrial robots do not have any countermeasures against this threat.
Most industrial robot owners do not write their own programs. The supply chain for industrial robot programs involves many third-party actors. See Figure 1 below for a simplified diagram. In each community, users of a particular vendor’s languages share code informally, and rely on user’s groups for hints and tips to solve common tasks. These forums rarely discuss security measures. Many organizations hire third-party contractors to implement particular processes, but there are no security certifications relevant to these proprietary languages. Most programmers learned their trade in an air-gapped world, and still rely on a perimeter which separates the safe users and code inside from the untrusted users and code outside. The languages offer no code scanners to identify potential weaknesses, such as not validating inputs, modifying system services, altering device state, or replacing system functions. The machines do not have a software asset management capability, so knowing where the components of a running program originated from is uncertain.
Figure 1: The Supply Chain for Industrial Robot Programming
All is not lost – not quite. In the short term, Trend Micro Research has developed a static code analysis tool called OTRazor, which examines robotic code for unsafe code patterns. This was demonstrated during our session at Black Hat.
Over time, vendors will have to introduce basic security checks, such as authentication, authorization, data integrity, and data confidentiality. The vendors will also have to introduce architectural restrictions – for instance, an application should be able to read the clock but not change it.. Applications should not be able to modify system files, programs, or data, nor should they be able to modify other applications. These changes will take years to arrive in the market, however. Until then, CISOs should audit industrial robot programs for vulnerabilities, and segment networks including industrial robots, and apply baseline security programs, as they do now, for both internally developed and procured software.
Protocol Gateway Vulnerabilities
Presented at Black Hat, Wednesday, August 5, https://www.blackhat.com/us-20/briefings/schedule/index.html#industrial-protocol-gateways-under-analysis-20632, with the corresponding research paper available here: https://www.trendmicro.com/vinfo/us/security/news/internet-of-things/lost-in-translation-when-industrial-protocol-translation-goes-wrong.
Industry 4.0 leverages the power of automation alongside the rich layer of software process control tools, particularly Enterprise Resource Planning (ERP), and its bigger cousin, Supply Chain Management (SCM). By bringing together dynamic industrial process control with hyper-efficient “just-in-time” resource scheduling, manufacturers can achieve minimum cost, minimum delay, and optimal production. But these integration projects require that IIoT devices speak with other technology, including IIoT from other manufacturers and legacy equipment. Since each equipment or device may have their own communication protocol, Industry 4.0 relies heavily on protocol converters.
Protocol converters are simple, highly efficient, low-cost devices that translate one protocol into another. Protocol converters are ubiquitous, but they lack any basic security capabilities – authentication, authorization, data integrity or data confidentiality – and they sit right in the middle of the OT network. Attackers can subvert protocol converters to hijack the communication or change configuration. An attacker can disable a safety thresholds, generate a denial of service attack, and misdirect an attached piece of equipment.
In the course of this research, we found nine vulnerabilities and are working with vendors to remediate the issues. Through our TXOne subsidiary, we are developing rules and intelligence specifically for IIoT message traffic, which are then embedded in our current network security offerings, providing administrators with better visibility and the ability to enforce security policies in their OT networks.
Protocol converters present a broad attack surface, as they have limited native information security capabilities. They don’t validate senders or receivers, nor do they scan or verify message contents. Due to their crucial position in the middle of the OT network, they are an exceptionally appealing target for malicious actors. Organizations using protocol converters – especially those on the way to Industry 4.0 – must address these weak but critical components of their evolving infrastructure.
What do you think? Let me know in the comments below or @WilliamMalikTM
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Welcome to the new normal. We’re all now living in a post-COVID-19 world characterized by uncertainty, mass home working and remote learning. The lines demarcating normal life have shifted abruptly – perhaps never to return. That’s not the worst that can happen, as we all know, but it does mean we all need to get used to new ways of living, working and studying from home. This has major implications for the online safety, security and privacy of our families.
To help you adapt to these new conditions while protecting what matters most, Trend Micro has developed a two-part blog series on “The New Normal.” Part 1 identifies the scope and specific cyber-threats of the new normal. Part 2 provides security tips and products to help address those threats.
In April, nearly 300 million Americans were estimated to be in government-mandated lockdown. Even as some businesses, municipalities and states begin to relax these rules, experts have warned of subsequent waves of the virus, which could result in new localized lockdowns. In short, a lot of people will continue to work from home, while their children, also at home, attempt to study remotely from their mobile devices.
This has considerable implications for how we spend our time. Without that morning commute to work or school, more of it than ever will involve sitting in front of a desktop, laptop, tablet or smartphone screen. Even the smart TV is enlisted. Dangers include
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Unfortunately, the increase in working from home (WFH), especially for those not used to it, may lead to an increase in risky behavior, such as: using non-approved apps for work; visiting non work-related sites on work devices; and using personal devices to access work resources. Recent global Trend Micro research found that:
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This is not about restricting your freedom to visit the sites you want to visit while at home. It’s about reducing the risk of exposing corporate data and systems to possible malware.
Unsurprisingly, there has also been a major uptick in the volume of cyber-threats targeting home users. With a captive audience to aim at, it’s a huge opportunity for cyber-criminals to steal your log-ins and personal data to sell to fraudsters, or even to steal corporate passwords and information for a potentially bigger pay-off. They are helped by the fact that many home workers may be more distracted than they usually would be at the office, especially if they have young children. Your kids may even share the same laptops or PCs as you, potentially visiting risky sites and/or downloading unapproved apps.
There’s also a chance that, unless you have a corporate machine at home, your personal computing equipment is less secure than the kit you had in the office. Add to that the fact that support from the IT department may be less forthcoming than usual, given that stretched teams are overwhelmed with requests, while themselves struggling to WFH. One recent report claimed that nearly half (47%) of IT security pros have been taken off some or all of their typical security tasks to support other IT-related jobs. In another, only 59% of respondents said they believe their cybersecurity team has the right tools and resources at home to perform their job effectively.
It’s time to step up and take security into your own hands. Stay on the lookout for the following threats.
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So what’s a remote worker/concerned parent to do to protect themselves and the family in the midst of the “new normal?”
Read Part 2 in this mini-series, which we’re publishing simultaneously with Part 1, where we share some best practice advice on how to keep your digital lives and work systems safe from online threats during lockdown—and where we provide tools to help you do just that.
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The past few months have seen radical changes to our work and home life under the Coronavirus threat, upending norms and confining millions of American families within just four walls. In this context, it’s not surprising that more of us are spending an increasing portion of our lives online. But this brings with it some familiar cyber-risks. In Part 1 of this mini-series, we explained how cyber-criminals are looking to capitalize on these sweeping changes to society to further their own ends.
Now let’s take a look at what you can do to protect your family, your data, and access to your corporate accounts.
The bad guys are laser-focused on stealing your personal data and log-ins and increasingly see the remote worker as an easy target for leapfrogging into corporate networks. That’s not to mention the potential internet safety risks inherent in bored kids spending more time in front of their screens. To respond, you’ll need to create an equally focused “home security plan” governed by sensible policies and best practices. Here are some of the key areas to consider.
Protect your smart home and router
Increasingly, unprotected smart home devices are being targeted by cyber-criminals to turn into botnets to attack others. They might also provide sophisticated attackers with a stepping-stone into your corporate systems, via the home network. The home router, with its known flaws, is (after the modem) the digital front door to the smart home and the basis for your networking, so it should be first in any security strategy. Consider the following when tackling home network security:
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Secure your home office
Cyber-criminals are primed to take advantage of distracted home workers and potentially less secure PCs/devices. Secure this environment by doing the following:
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Stay safe from phishing
Phishing is the number one tactic used by attackers to trick you into installing malware or handing over your log-ins. Emails, text messages, social media messages and more are spoofed to appear as if sent by a legitimate company or contact. In response:
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Use video conferencing safely
New videoconferencing platforms can introduce risk, especially if you’re not familiar with the default settings. Here’s how to stay safe when video conferencing:
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Stay safe shopping and banking
Next, protect your financial information and stay safe from e-commerce fraud by doing the following:
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Think about online safety for kids
They may be under your roof for more hours of the day than usual, but your children are also likely to be spending more time online. That means you need to have a measured conversation with them about internet safety, backed up with parental controls. Consider the following:
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Mobile security best practices
Finally, sheltering at home has limits, particularly for restless kids. When they go to the store or out to the park, facemasks notwithstanding, they’re likely going to use their mobile devices, just as they’ll continue to do at home. Of course, you’re not exempt either from mobile threats. Ensure mobile security by
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When it comes to protecting the home from security and privacy threats during lockdown, leave no stone unturned. Cyber-criminals will always look for the weak link in the chain and focus their efforts there. Network security is important, but it doesn’t replace the need for protection on each individual device. You’ll need to cover your router, network, smart devices, and all endpoints (PCs, laptops, mobiles and other devices). Here’s how Trend Micro can help:
Trend Micro Home Network Security
Trend Micro Home Network Security provides industry-leading protection against any threats to internet-connected devices in the home. The solution
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Trend Micro Security (PC and Mac)
Trend Micro Security, available in various editions (led by Trend Micro Maximum Security), is Trend’s flagship endpoint security product for consumers. Available for both PCs and Macs, it features AI learning to stop advanced threats. Among a wide range of protections, it includes:
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Trend Micro Mobile Security:
Trend Micro Mobile Security provides endpoint security for all your mobile devices, whether Android or iOS-based.
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Additional Trend Micro Tools:
Network and endpoint security should be supplemented with tools that accomplish specific tasks, such as protecting your internet connections, your passwords, and your identity data. Trend Micro provides
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Maintaining your family’s security and privacy on all their devices during the coronavirus lockdown above all means changing your mindset, to take into account the mix of work and play in the household during the “new normal.” Use these tips and tools during lockdown and you’ll be well on your way to ensuring you and your family’s safety from malicious viruses—both digital and natural.
The post Top Tips For Home Cybersecurity And Privacy In A Coronavirus-Impacted World (Part 2) appeared first on .
“Alexa, turn on the TV.”
”Get it yourself.”
This nightmare scenario could play out millions of times unless people take steps to protect their IoT devices. The situation is even worse in industrial settings. Smart manufacturing, that is, Industry 4.0, relies on tight integration between IT systems and OT systems. Enterprise resource planning (ERP) software has evolved into supply chain management (SCM) systems, reaching across organizational and national boundaries to gather all forms of inputs, parting out subcomponent development and production, and delivering finished products, payments, and capabilities across a global canvas.
Each of these synergies fulfills a rational business goal: optimize scarce resources across diverse sources; minimize manufacturing, shipping, and warehousing expense across regions; preserve continuity of operations by diversifying suppliers; maximize sales among multiple delivery channels. The supply chain includes not only raw materials for manufacturing, but also third party suppliers of components, outsourced staff for non-core business functions, open source software to optimize development costs, and subcontractors to fulfill specialized design, assembly, testing, and distribution tasks. Each element of the supply chain is an attack surface.
Software development has long been a team effort. Not since the 1970s have companies sought out the exceptional talented solo developer whose code was exquisite, flawless, ineffable, undocumented, and impossible to maintain. Now designs must be clear across the team, and testing requires close collaboration between architects, designers, developers, and production. Teams identify business requirements, then compose a solution from components sourced from publically shared libraries. These libraries may contain further dependencies on yet other third-party code of unknown provenance. Simplified testing relies on the quality of the shared libraries, but shared library routines may have latent (or intentionally hidden) defects that do not come to life until in a vulnerable production environment. Who tests GitHub? The scope of these vulnerabilities is daunting. Trend Micro just published a report, “Attacks on Smart Manufacturing Systems: A Forward-looking Security Analysis,” that surveys the Industry 4.0 attack surface.
Within the manufacturing operation, the blending of IT and OT exposes additional attack surfaces. Industrial robots provide a clear example. Industrial robots are tireless, precision machines programmed to perform exacting tasks rapidly and flawlessly. What did industry do before robots? Factories either relied on hand-built products or on non-programmable machines that had to be retooled for any change in product specifications. Hand-built technology required highly skilled machinists, who are expensive and require time to deliver. See Figure 1 for an example.
Figure 1: The cost of precision
Non-programmable robots require factory down time for retooling, a process that can take weeks. Before programmable industrial robots, automobile factories would deliver a single body style across multiple years of production. Programmable robots can produce different configurations of materials with no down time. They are used everywhere in manufacturing, warehousing, distribution centers, farming, mining, and soon guiding delivery vehicles. The supply chain is automated.
However, the supply chain is not secure. The protocols industrial robots depend on assumed the environment was isolated. One controller would govern the machines in one location. Since the connection between the controller and the managed robots was hard-wired, there was no need for operator identification or message verification. My controller would never see your robot. My controller would only connect to my robot, so the messages they exchanged needed no authentication. Each device assumed all its connections were externally verified. Even the safety systems assumed the network was untainted and trustworthy. No protocols included any security or privacy controls. Then Industry 4.0 adopted wireless communications.
The move, which saved the cost of laying cable in the factory, opened those networks to eavesdropping and attacks. Every possible attack against industrial robots is happening now. Bad guys are forging commands, altering specifications, changing or suppressing error alerts, modifying output statistics, and rewriting logs. The consequences can be vast yet nearly undetectable. In the current report on Rogue Robots, our Forward-looking Threat Research team, collaborating with the Politecnico di Milano (POLIMI), analyzes the range of specific attacks today’s robots face, and the potential consequences those attacks may have.
Owners and operators of programmable robots should heed the warnings of this research, and consider various suggested remedies. Forewarned is forearmed.
The Rogue Robots research is here: https://www.trendmicro.com/vinfo/us/security/news/internet-of-things/rogue-robots-testing-industrial-robot-security.
The new report, Attacks on Smart Manufacturing Systems: A Forward-looking Security Analysis, is here: https://www.trendmicro.com/vinfo/us/security/threat-intelligence-center/internet-of-things/threats-and-consequences-a-security-analysis-of-smart-manufacturing-systems.
What do you think? Let me know in the comments below, or @WilliamMalikTM.
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Few national emergencies have the ability to strike panic into the populace quite like a virus pandemic. It’s fortunately something most of us have never had to experience, until now. At the time of writing, the number of global confirmed cases of Coronavirus infection, or COVID-19, has reached nearly 174,000 worldwide. Although the official US total currently remains a fraction of that (around 4,000), problems with testing mean many cases are likely to be going unreported here.
This is a difficult time for many Americans, as it is for citizens all over the world. But unfortunately it’s extraordinary global events like this that cyber-criminals look for in order to make their schemes more successful. True to form, they’re using mass awareness of the outbreak and a popular desire for more information on the virus, to trick users into giving away personal information and log-ins, or to unwittingly install malware on their devices.
As organizations enforce remote working to reduce the impact of the virus, many of you will be logging-on from home or your mobile computing devices, which may have fewer built-in protections from such threats. This makes it more important than ever to know how the bad guys are trying to cash in on COVID-19 and what you can do to stay safe.
Here’s a quick guide to the key online threats and security tips:
Phishing for trouble
Decades before COVID-19 burst onto the scene, a different kind of pandemic was spreading across the globe. Phishing messages have been one of the most popular tools in the hackers’ arsenal for years. In fact, Trend Micro blocked nearly 48 billion email-borne threats in 2019, 91% of the total we detected. Phishing is designed to trick the user into handing over their log-ins or personal and financial details, or persuading them to unwittingly download malware. Cyber-criminals typically achieve this by spoofing an email to make it appear as if sent from a legitimate and trustworthy source.
Once a user has been hooked, they are enticed into clicking on a malicious link or opening a malware-laden attachment. This could be anything from a banking trojan designed to steal online banking log-ins, to a piece of ransomware which will lock the user out of their PC until they pay a fee. It could even be cryptojacking malware which sits on the infected machine, quietly mining for Bitcoin while running up large energy bills and slowing down your PC.
The bad news is that phishing messages — whether sent by email, social media, text or messaging app — are getting harder to spot. Many now feature perfect English, and official logos and sender domains. They also often use current newsworthy events to trick the user into clicking. And they don’t get more high-profile than the COVID-19 pandemic.
Depending on how well protected your computing devices are, you may be more likely to receive one of these scam messages than be exposed to the virus itself. So, it pays to know what’s out there.
Watch out for these scams
The phishing landscape is evolving all the time. But here is a selection of some of the most common scams doing the rounds at the moment:
‘Official’ updates
Many of these emails purport to come from official organizations such as the US Center for Disease Control and Prevention (CDC), or the World Health Organization (WHO). They claim to contain key updates on the spread of the virus and must-read recommendations on how to avoid infection. Booby-trapped links and attachments carry malware and/or could redirect users to phishing sites.
Coronavirus map
Sometimes legitimate tools can be hijacked to spread malware. Researchers have spotted a version of the interactive Coronavirus dashboard created by Johns Hopkins University which was altered to contain information-stealing malware known as AZORult. If emails arrive with links to such sites, users should exercise extreme caution.
Corporate updates
Many big brands are proactively contacting their customer base to reassure them of the steps they are taking to keep staff and customers safe from the virus. But here too, the hackers are jumping in with spoof messages of their own purporting to come from the companies you may do business with. FedEx is one such global brand that has been spoofed in this way.
Donations
Another trick is to send phishing emails calling for donations to help fund research into the virus. One, claiming to come from the “Department of Health” has a subject line, “URGENT: Coronavirus, Can we count on your support today?” A key tactic in phishing emails is to create a sense of urgency like this to rush the reader into making hasty decisions.
Click here for a cure
One scam email claims to come from a medical professional and contains details about a vaccine for COVID-19 which has been “hushed up” by global governments. Of course, clicking through to find the non-existent ‘cure’ will bring the recipient nothing but trouble.
Tax refunds
In the UK, users have received emails spoofed to appear as if sent from the government, and promising a tax refund to help citizens cope with the financial shock of the pandemic. As governments in the US and elsewhere start to take more interventionist measures to prop up their economies, we can expect more of these types of phishing email.
How to stay safe
The good news is that there’s plenty you can do to protect you and your family from phishing emails like these. A blend of the following technical and human fixes will go a long way to minimizing the threat:
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How Trend Micro can help
Fortunately, Trend Micro Security can also help. Among its anti-phishing features are the following:
Antispam for Outlook: includes checks on email sender reputation, employs web threat protection to block malicious URLs in messages, and scans for threats in files attached to email messages.
Fraud Buster: uses leading-edge AI technology to detect fake emails in Gmail and Outlook webmail that don’t contain malicious URLs or attachments, but still pose a risk to the user.
To find out more about how Trend Micro can help keep your family safe from online threats and phishing, go to our Trend Micro Security homepage, or watch our video series: How to Prevent Phishing, Part 1 and Part 2.
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