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25/11/2020

Apache Unomi CVE-2020-13942: RCE Vulnerabilities Discovered

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Software Security

“Apache Unomi is a Java Open Source customer data platform, a Java server designed to manage customers, leads and visitors’ data and help personalize customers experiences,” according to its website. Unomi can be used to integrate personalization and profile management within very different systems such as CMSs, CRMs, Issue Trackers, native mobile applications, etc. Unomi was announced to be a Top-Level Apache product in 2019 and is made with high scalability and ease of integration in mind.

Given that Unomi contains an abundance of data and features tight integrations with other systems, making it a highly desired target for attackers, the Checkmarx Security Research Team analyzed the platform to uncover potential security issues.

 

What Checkmarx Found:

Apache Unomi allowed remote attackers to send malicious requests with MVEL and OGNL expressions that could contain arbitrary classes, resulting in Remote Code Execution (RCE) with the privileges of the Unomi application. MVEL and OGNL expressions are evaluated by different classes inside different internal packages of the Unomi package, making them two separate vulnerabilities. The severity of these vulnerabilities is heightened since they can be exploited through a public endpoint, which should be kept public by design for the application to function correctly, with no authentication, and no prior knowledge on the attacker’s part.

Both vulnerabilities, designated as CVE-2020-13942, have a CVS Score of 10.0 (Critical) as they lead to complete compromise of the Unomi service’s confidentiality, integrity, and accessibility, in addition to allowing access to the underlying OS.

Click here to found out more about Checkmarx and how it can help you to make sure your product is safe!
23/11/2020

How Retailers Can Avoid Cyber Threats

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Cyber Defense

 

In November 2019, Macy's confirmed the presence of credit card-skimming Magecart malware on its checkout and wallet pages just as Black Friday and the holiday shopping season approached. Macy's indicated that the malware allowed a third party to capture customers' data on the pages if they input their credit card information and clicked "place order."

 

This potentially enabled cybercriminals to access names, addresses, phone numbers, and email addresses along with the users' credit card numbers, security codes, and expiration dates. A Macy's cybersecurity team removed the code by Oct. 15 and announced the incident a few weeks later.

With Black Friday on Nov. 27 this year, retailers are jockeying to gain a competitive edge in what could be the biggest online shopping spree ever. E-commerce holiday sales are expected to generate between $182 billion and $196 billion this season — a year-over-year increase of 25% to 35%, according to Deloitte's annual forecast. Overall holiday spending, on the other hand, will top out at $1.15 trillion with a relatively flat increase of 1.5%.

The trend mirrors the e-commerce sales boom that occurred throughout 2020, with the pandemic expected to fuel a $794.5 billion market in 2020, according to eMarketer. This represents a 32.4% year-over-year growth rate — nearly double the 18% predicted in eMarketer's second-quarter forecast. Brick-and-mortar sales will decline by 3.2%, to $4.71 trillion. Given the stakes in the roughly one-month peak holiday shopping season, retailers are racing to optimize their websites for mobile devices and third-party affiliate partners to maximize every opportunity possible.

However, as Macy's discovered, these opportunities elevate risks for shoppers and businesses. Through formjacking and Magecart attacks, cyber thieves inject malicious JavaScript code into e-commerce websites to skim data and steal customer information. Formjacking refers to hijacking a web form (typically the payment page) and accounts for 87% of breaches. Magecart hackers target shopping carts associated with the Magento open source e-commerce platform. Overall, there have been an average of 425 Magecart incidents per month in 2020. In many cases, adversaries deploy social engineering tactics such as sending shoppers a bogus promotion for a site; when shoppers respond to the fake offer, they enter their personal data on a page that is really a skimming scam.

The fact that there are multiple third-party vendors that support online sales further exposes retailers to possible threats. Cybercriminals often target third parties because they're the weak links of the supply chain. On average, e-commerce sites use 40 to 60 third-party tools and intend to add three to five new third-party technologies each year, amplifying the risks.

So, what should e-commerce businesses do to thwart these attacks and ensure their customers have a "holly, jolly" holiday? We recommend three steps.

Understand Your Risk
It's safe to say that the bad guys are planning for Black Friday as much as retailers are. In fact, they may already have compromised their intended targets and are now simply waiting for the big shopping day to arrive.

After all, they've demonstrated over time that they're very good at "hiding" inside systems until they're ready to strike. Nearly two-thirds of security professionals indicate that they're seeing no less than 100 days of dwell time — the time it takes to detect attackers once they infect a network. Therefore, it's critical to conduct internal due diligence to inventory both your internal risk and third-party risk: What do you know exists, and what protections do you have in place as a result? Are you confident in your solutions? Are you doing enough to defend customer data before it becomes a problem?

Implement Zero Trust
It's essential to enforce zero-trust solutions that restrict third parties to solely the information that the website has authorized them to access, while blocking access to consumers' private and payment information, aka "least privilege." By using virtual webpages, the solutions create an exact replication of the original webpage but exclude what the third party isn't authorized to see. If the third-party input is allowed, the virtual page will transfer it to the original webpage. By isolating third-party scripts from the original website, unauthorized changes to JavaScript won't cause any harm.

View Your Webpages as Customers See Them
Too many businesses only see their website as it appears on the server side, instead of viewing it from the customer browser perspective. The browser page is what customers "see" when they shop, and these pages are subject to compromises. Therefore, you need to assess what you're doing to protect your pages once they leave the web server.

Starting on Nov. 27, retailers large and small will discover whether their e-commerce capabilities are ready for prime time or not. Indeed, the season will serve as a litmus test of their digital transformation success.

This is why companies cannot afford to consider cybersecurity as an afterthought — they must think of data defense as an indispensable component of their business strategies. By committing to a comprehensive risk assessment, enforcing zero trust of third parties, and protecting browser-side pages, they'll rise above the competition this holiday season and reap the rewards of superior brand reputation and customer loyalty for the many months that follow.

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23/11/2020

TA551 (Shathak) Word docs with Japanese template push IcedID

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Cyber Defense

Not a New Threat, but very dangerous

The TA551 (Shathak) campaign continues to push IcedID (Bokbot) malware since  August 2020.  The template for its Word documents has been updated, but otherwise, not much has changed.  This campaign mainly targets english speaking victimes however it has also targeted non-English speaking targets with other types of malware.

 

Available Attack Vectors:

  • E-mail
  • Endpoint
  • Web Gateway
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