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If only Patch Tuesdays came around infrequently — like total solar eclipse rare — instead of just creeping up on us each month like The Man in the Moon. Although to be fair, it would be tough for Microsoft to eclipse the number of vulnerabilities fixed in this month’s patch batch — a record 147 flaws in Windows and related software.
Yes, you read that right. Microsoft today released updates to address 147 security holes in Windows, Office, Azure, .NET Framework, Visual Studio, SQL Server, DNS Server, Windows Defender, Bitlocker, and Windows Secure Boot.
“This is the largest release from Microsoft this year and the largest since at least 2017,” said Dustin Childs, from Trend Micro’s Zero Day Initiative (ZDI). “As far as I can tell, it’s the largest Patch Tuesday release from Microsoft of all time.”
Tempering the sheer volume of this month’s patches is the middling severity of many of the bugs. Only three of April’s vulnerabilities earned Microsoft’s most-dire “critical” rating, meaning they can be abused by malware or malcontents to take remote control over unpatched systems with no help from users.
Most of the flaws that Microsoft deems “more likely to be exploited” this month are marked as “important,” which usually involve bugs that require a bit more user interaction (social engineering) but which nevertheless can result in system security bypass, compromise, and the theft of critical assets.
Ben McCarthy, lead cyber security engineer at Immersive Labs called attention to CVE-2024-20670, an Outlook for Windows spoofing vulnerability described as being easy to exploit. It involves convincing a user to click on a malicious link in an email, which can then steal the user’s password hash and authenticate as the user in another Microsoft service.
Another interesting bug McCarthy pointed to is CVE-2024-29063, which involves hard-coded credentials in Azure’s search backend infrastructure that could be gleaned by taking advantage of Azure AI search.
“This along with many other AI attacks in recent news shows a potential new attack surface that we are just learning how to mitigate against,” McCarthy said. “Microsoft has updated their backend and notified any customers who have been affected by the credential leakage.”
CVE-2024-29988 is a weakness that allows attackers to bypass Windows SmartScreen, a technology Microsoft designed to provide additional protections for end users against phishing and malware attacks. Childs said one of ZDI’s researchers found this vulnerability being exploited in the wild, although Microsoft doesn’t currently list CVE-2024-29988 as being exploited.
“I would treat this as in the wild until Microsoft clarifies,” Childs said. “The bug itself acts much like CVE-2024-21412 – a [zero-day threat from February] that bypassed the Mark of the Web feature and allows malware to execute on a target system. Threat actors are sending exploits in a zipped file to evade EDR/NDR detection and then using this bug (and others) to bypass Mark of the Web.”
Update, 7:46 p.m. ET: A previous version of this story said there were no zero-day vulnerabilities fixed this month. BleepingComputer reports that Microsoft has since confirmed that there are actually two zero-days. One is the flaw Childs just mentioned (CVE-2024-21412), and the other is CVE-2024-26234, described as a “proxy driver spoofing” weakness.
Satnam Narang at Tenable notes that this month’s release includes fixes for two dozen flaws in Windows Secure Boot, the majority of which are considered “Exploitation Less Likely” according to Microsoft.
“However, the last time Microsoft patched a flaw in Windows Secure Boot in May 2023 had a notable impact as it was exploited in the wild and linked to the BlackLotus UEFI bootkit, which was sold on dark web forums for $5,000,” Narang said. “BlackLotus can bypass functionality called secure boot, which is designed to block malware from being able to load when booting up. While none of these Secure Boot vulnerabilities addressed this month were exploited in the wild, they serve as a reminder that flaws in Secure Boot persist, and we could see more malicious activity related to Secure Boot in the future.”
For links to individual security advisories indexed by severity, check out ZDI’s blog and the Patch Tuesday post from the SANS Internet Storm Center. Please consider backing up your data or your drive before updating, and drop a note in the comments here if you experience any issues applying these fixes.
Adobe today released nine patches tackling at least two dozen vulnerabilities in a range of software products, including Adobe After Effects, Photoshop, Commerce, InDesign, Experience Manager, Media Encoder, Bridge, Illustrator, and Adobe Animate.
KrebsOnSecurity needs to correct the record on a point mentioned at the end of March’s “Fat Patch Tuesday” post, which looked at new AI capabilities built into Adobe Acrobat that are turned on by default. Adobe has since clarified that its apps won’t use AI to auto-scan your documents, as the original language in its FAQ suggested.
“In practice, no document scanning or analysis occurs unless a user actively engages with the AI features by agreeing to the terms, opening a document, and selecting the AI Assistant or generative summary buttons for that specific document,” Adobe said earlier this month.
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For years, analysts, security specialists, and security architects alike have been encouraging organizations to become DMARC compliant. This involves deploying email authentication to ensure their… Read more on Cisco Blogs
KrebsOnSecurity received a nice bump in traffic this week thanks to tweets from the Federal Bureau of Investigation (FBI) and the Federal Communications Commission (FCC) about “juice jacking,” a term first coined here in 2011 to describe a potential threat of data theft when one plugs their mobile device into a public charging kiosk. It remains unclear what may have prompted the alerts, but the good news is that there are some fairly basic things you can do to avoid having to worry about juice jacking.
On April 6, 2023, the FBI’s Denver office issued a warning about juice jacking in a tweet.
“Avoid using free charging stations in airports, hotels or shopping centers,” the FBI’s Denver office warned. “Bad actors have figured out ways to use public USB ports to introduce malware and monitoring software onto devices. Carry your own charger and USB cord and use an electrical outlet instead.”
Five days later, the Federal Communications Commission (FCC) issued a similar warning. “Think twice before using public charging stations,” the FCC tweeted. “Hackers could be waiting to gain access to your personal information by installing malware and monitoring software to your devices. This scam is referred to as juice jacking.”
The FCC tweet also provided a link to the agency’s awareness page on juice jacking, which was originally published in advance of the Thanksgiving Holiday in 2019 but was updated in 2021 and then again shortly after the FBI’s tweet was picked up by the news media. The alerts were so broadly and breathlessly covered in the press that a mention of juice jacking even made it into this week’s Late Late Show with James Corden.
The term juice jacking crept into the collective paranoia of gadget geeks in the summer of 2011, thanks to the headline for a story here about researchers at the DEFCON hacker convention in Vegas who’d set up a mobile charging station designed to educate the unwary to the reality that many mobile devices connected to a computer would sync their data by default.
Since then, Apple, Google and other mobile device makers have changed the way their hardware and software works so that their devices no longer automatically sync data when one plugs them into a computer with a USB charging cable. Instead, users are presented with a prompt asking if they wish to trust a connected computer before any data transfer can take place.
On the other hand, the technology needed to conduct a sneaky juice jacking attack has become far more miniaturized, accessible and cheap. And there are now several products anyone can buy that are custom-built to enable juice jacking attacks.
Probably the best known example is the OMG cable, a $180 hacking device made for professional penetration testers that looks more or less like an Apple or generic USB charging cable. But inside the OMG cable is a tiny memory chip and a Wi-Fi transmitter that creates a Wi-Fi hotspot, to which the attacker can remotely connect using a smartphone app and run commands on the device.
The $180 “OMG cable.” Image: hak5.org.
Brian Markus is co-founder of Aries Security, and one of the researchers who originally showcased the threat from juice jacking at the 2011 DEFCON. Markus said he isn’t aware of any public accounts of juice jacking kiosks being found in the wild, and said he’s unsure what prompted the recent FBI alert.
But Markus said juice jacking is still a risk because it is far easier and cheaper these days for would-be attackers to source and build the necessary equipment.
“Since then, the technology and components have become much smaller and very easy to build, which puts this in the hands of less sophisticated threat actors,” Markus said. “Also, you can now buy all this stuff over the counter. I think the risk is possibly higher now than it was a decade ago, because a much larger population of people can now pull this off easily.”
How seriously should we take the recent FBI warning? An investigation by the myth-busting site Snopes suggests the FBI tweet was just a public service announcement based on a dated advisory. Snopes reached out to both the FBI and the FCC to request data about how widespread the threat of juice jacking is in 2023.
“The FBI replied that its tweet was a ‘standard PSA-type post’ that stemmed from the FCC warning,” Snopes reported. “An FCC spokesperson told Snopes that the commission wanted to make sure that their advisory on “juice-jacking,” first issued in 2019 and later updated in 2021, was up-to-date so as to ensure ‘the consumers have the most up-to-date information.’ The official, who requested anonymity, added that they had not seen any rise in instances of consumer complaints about juice-jacking.”
What can you do to avoid juice jacking? Bring your own gear. A general rule of thumb in security is that if an adversary has physical access to your device, you can no longer trust the security or integrity of that device. This also goes for things that plug into your devices.
Juice jacking isn’t possible if a device is charged via a trusted AC adapter, battery backup device, or through a USB cable with only power wires and no data wires present. If you lack these things in a bind and still need to use a public charging kiosk or random computer, at least power your device off before plugging it in.
Imagine this: Your CEO sends you an email asking for your help transferring $5,000 to a new vendor for an urgent project. You make the transfer, only to find out later that the email was actually from an imposter, and that money is now in the hands of cybercriminals. Oops, right? crickets
Business Email Compromise (BEC) is a type of cybercrime that involves compromising or imitating legitimate business email accounts to carry out fraudulent transactions or steal sensitive information. The goal of a BEC attack is typically to trick the victim into transferring money, clicking on a malicious link, or disclosing sensitive information such as login credentials. BEC attacks can have a devastating impact on organizations of all sizes and in all industries, making it essential for businesses to be aware of the threat, understand the business risk, and take the necessary steps to protect themselves.
According to the latest FBI IC3 report, BEC is “one of the most financially damaging online crimes” and in 2021 was accountable for $2.4 Billion in adjusted losses for businesses and consumers.
One of the most common types of BEC attacks is called impersonating or email spoofing. By pretending to be a trusted colleague or business partner to gain the victim’s trust, the attacker uses social engineering techniques to trick the victim into clicking on a link or attachment in an email that contains malware, takes the victim to a malicious website, and has them transfer funds or change payment information.
BEC attacks can be very sophisticated and are difficult to detect. Many times, what the end-user sees on their email client does not represent the true email address of that sender, or it shows one that has been spoofed.
Typically, the attacker tries to impersonate someone in the organization with enough authority to not be questioned about what he/she is asking to be done.
As with everything in security, to be able to succeed in stopping BEC attacks, additional security layers & techniques should be implemented. There are several options to mitigate or reduce the number of successful BEC attacks. Creating a list of the people who will be likely to be impersonated will provide the best results. Usually, with names from the CxO level, this is known as a High Impact Personnel list. It will be used along with other security analysis engines to make sure any impersonated/spoof emails, along with other threats, get stopped and will not reach the end user.
The Cisco Secure Email Threat Defense solution leverages hundreds of detection engines that utilize state-of-the-art artificial intelligence/machine learning and natural language processing to convict messages from the most creative attackers! On top of this, our customers can define their High Impact Personnel list, and together with the other detection engines, will be able to not only block malicious messages but also understand the reasons and categories of why a message is being convicted as malicious.
In summary, Business Email Compromise (BEC) is a serious threat to organizations of all sizes and in all industries. To protect against BEC attacks, businesses should implement multiple techniques including identifying their High Impact Personnel for their organization, educating employees about the threat, and relying on reporting to understand who is being targeted most frequently so their security policies can be adjusted.
See how Secure Email Threat Defense identifies specific business risk factors to protect your organization.
We’d love to hear what you think. Ask a Question, Comment Below, and Stay Connected with Cisco Secure on social!
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Attackers specifically craft business email compromise (BEC) and phishing emails using a combination of malicious techniques, expertly selected from an ever-evolving bag of tricks. They’ll use these techniques to impersonate a person or business that’s well-known to the targeted recipient and hide their true intentions, while attempting to avoid detection by security controls.
As a result of the requisite expertise needed to combat these complex attacks, email security has traditionally been siloed away in disparate teams and security controls. Practitioners are buried under an ever-growing pile of RFCs, requiring extensive domain-specific knowledge, unending vigilance, and meticulous manual interventions, such as tweaking trust levels and cultivating allow/block lists with IPs, domains, senders, and vendors.
Cisco Secure Email Threat Defense is leading the industry forward with a major shift, elevating email security into a new era; where administration will consist of merely associating specific business risks with the appropriate due diligence response required to remediate against them.
Email Threat Defense has introduced a new Threat Profile that provides the customer with deep insights into the specific business risks of individual email threats and the confidence to act quickly. This new visualization is powered by a new patent-pending threat detection engine. This engine leverages intelligence distilled from Talos global-scale threat research across a massive volume of email traffic into machine learning, behavioral modeling, and natural language understanding.
The detection engine granularly identifies specific underlying threat techniques utilized in the message by the attacker. The identified techniques provide the full context of the threat message as the supporting foundation for the engine to determine threat categorization and the specific risk to the business. These malicious Techniques, together with the threat category and specific business risk, are used to populate the Threat Profile.
Each message’s Threat Profile is identified in real-time, automatically remediated per policy, and surfaced directly to the operator in the message detail views, providing deep contextual insights into the attacker’s intent and the associated risks to the business. As part of a larger Extended Detection and Response (XDR) strategy, the actionable intelligence in Email Threat Defense is integrated with the wider enterprise orchestration of security controls via SecureX, easing the operational burden by decreasing your mean time to remediation (MTTR).
Email Threat Defense delivers a distinct understanding of malicious messages, the most vulnerable targets within the organization, and the most effective means of protecting them from phishing, scams, and BEC attacks. With a clean design and core focus on simplifying administration, Email Threat Defense deploys in minutes to strengthen protection of your existing Microsoft 365 Exchange Online platform against the most advanced email threats.
For more information, visit the Cisco Secure Email product pages, read the Email Threat Defense data sheet, and view the demo video below.
We’d love to hear what you think. Ask a Question, Comment Below, and Stay Connected with Cisco Secure on social!
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I’m sure you’ve seen them — emails or messages that sound alarming and ask you to act quickly. We live in a digital world that produces hundreds of messages and alerts every day. It’s often hard to determine the validity of a suspicious message or phishing email. Whether you are an administrator, or an end-user, it can be overwhelming to accurately identify a malicious message. When in doubt, here are some questions you should ask yourself:
Is the message from a legitimate sender?
Do I normally receive messages from this person?
If there’s a link, can I tell where it’s sending me?
Attackers continue to evolve their methods, and they’re highly educated on the defenses they come up against in the wild. They’ll craft messages that do not involve any traditional indicators of compromise, such as domains, IP address, or URL links. They’ll also start their attacks by sending messages as an initial lure to establish trust, before sending an email with altered invoice or one claiming to be a helpless employee attempting to get their payroll fixed.
Phishing is a socially-based attack type, one where the threat actors focus on human behavior. When these attacks target organizations, there are multiple levels of attack at play. One that focuses on behavioral patterns and workflow, and the other centers on the victim’s emotional boundaries, such as targeting their desire to help others. You see this pattern frequently in Business Email Compromise (BEC) attacks.
Below, we’ve placed an example of a lure, which will test the victim to see if there is a means to quickly establish trust. Here, the threat actor is pretending to be the Chief Financial Officer (CFO) of the victim’s organization. If the lure is successful, then the threat actor will progress the attack, and often request sensitive records or wire transfers. Notice that in the email headers, the person pretending to be the CFO is using a Gmail account, one that was likely created just for this attack. The message is brief, stresses importance and urgency, and requests assistance, playing on the victim’s workflow and desire to help an executive or someone with authority.
The example below is a simplified one, to be sure, but the elements are legitimate. Daily, emails like this hit the inboxes of organizations globally, and the attackers only need to locate a single victim to make their efforts payout.
In the FBI / IC3 2021 Internet Crime Report, there were nearly 20,000 Business Email Compromise complaints filed, with an adjusted loss of nearly 2.4 billion dollars. While spoofing the identity of an executive is certainly one way to conduct a BEC attack, the FBI says that threat actors have started leveraging the normality of hybrid-work to target meeting platforms to establish trust and conduct their crimes. When successful, the funds from the fraudulent wire transfers are moved to crypto wallets and the funds dispersed, making recovery harder.
So as an end user what can you do to protect your organization? Be mindful anytime you receive an urgent call to action, especially when the subject involves money. If your workflow means that you regularly receive these types of requests from the specific individual, verify their identity and the validity of the request using another channel of communication, such as in person or via phone. If you do validate their identity via the phone, take care to avoid calling any numbers listed in the email.
Cisco Secure Email helps stop these types of attacks by tracking user relationships and threat techniques. These techniques often include account takeover, spoofing and many more. Using an intent-based approach allows Secure Email to detect and classify business email compromises and other attacks, so administrators are empowered to take a risk-based approach to stopping these threats.
Find out more about how Cisco Secure Email can help keep your organization safe from phishing.
We’d love to hear what you think. Ask a Question, Comment Below, and Stay Connected with Cisco Secure on social!
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A virtual private network (VPN) is a tool that enables users to protect their privacy while using an internet connection. VPNs create an encrypted tunnel — a private link between your device and the VPN server.
Essentially, this private link or tunnel keeps external influences out and allows your data to travel in an encrypted manner, enhancing security. The network’s privacy also makes sure your Internet Protocol (IP) address and browsing history is hidden online.
[Text Wrapping Break]VPNs use several VPN protocols like OpenVPN, IPSec/IKEv2, PPTP, SSTP, and WireGuard to protect you. In particular, McAfee® Safe Connect VPN supports the OpenVPN protocol, which is an open-source and highly secure protocol running on TCP or UDP internet protocol and used by many VPN providers globally. [Text Wrapping Break][Text Wrapping Break]Read on to know more about how VPNs work and learn to install one.
The best way to stay secure online is to minimize your digital footprint. A good VPN service allows you to do exactly this, acting as an additional layer of protection for your online activities.
The primary function of a VPN is encryption. Most websites and online browsers already have some form of encryption. For example, when you purchase something on Amazon, you have to enter your credit card details and address. Encryption creates a private tunnel for data transmission between your device and Amazon to make sure no one else can watch what you’re doing.
A VPN app does the same thing with an added level of security. The data that you pass to a VPN server is anonymized before it goes to the internet. In short, your device establishes an encrypted connection with the VPN server instead of connecting directly through the internet. So, the encryption protects your data and digital footprint from anyone outside the “private tunnel” between you and the secure VPN server.
Additionally, VPNs allow you to change or hide your IP address. An IP address is a number linked to a particular computer and network. Changing your IP address can trick the servers into thinking you’re connecting from a different geographical location. This can help improve security and provide additional benefits discussed below.
You can also use a VPN to hide your IP address. This may be helpful if you’re trying to access content from other countries (for example, Netflix may have different content in different countries) or trying to keep your internet search history away from the prying eyes of a third-party like your internet service provider or a government.
Using a VPN can help improve your online security. Nearly every internet activity — website and social media browsing, paying bills, online shopping, data sharing, and more — can be tracked by others. [Text Wrapping Break][Text Wrapping Break]Read on to learn about who typically uses a VPN and understand whether you should consider installing one.
Given the extra security that VPN connections provide, you can gain something from using a VPN client. So, if you’re an individual concerned about your online privacy or just want to browse online anonymously — consider using a VPN. A VPN enables you to use the internet without third parties seeing your identity or identifying you via your search history since they don’t know what you were searching about or using the internet for.
Big tech has had a long history of tracking private data for their gains. These companies regularly bundle data into coherent profiles and sell it to third parties. Additionally, they use private data to demonstrate targeted advertisements or manipulative content that makes you more likely to purchase their products. [Text Wrapping Break][Text Wrapping Break]So, it’s worthwhile to use a VPN if you regularly shop online or bank online. A VPN gives you that additional protection that can help prevent hackers or malicious third parties from accessing your information.[Text Wrapping Break][Text Wrapping Break]VPNs are excellent mechanisms for you to protect your privacy online. And you should consider your personal context and conduct thorough research to find the best VPN for your needs.
VPNs are particularly helpful if you travel a lot, either for business or for leisure. While traveling, it’s inevitable that you connect to random or unknown Wifi networks and it may be the case that these networks are spying on you. However, if you’re using a VPN to browse the web, these WiFi networks can’t track you or your search history. This ensures you maintain anonymity and are safe while using the internet.
Yes, an additional layer of protection to your online activities is always good practice. A VPN allows individuals using a personal computer to stay vigilant, protect their data, and maintain anonymity while allowing them to still enjoy their online experience.
VPNs provide more benefits than just serving as an additional layer for cybercriminals to pass through.
Depending on the VPN you’re using, it can be a straightforward process to connect a VPN to your Mac, Windows, iPhone, or Android mobile device. McAfee’s VPN works with multiple platforms and operating systems, including Microsoft Windows, macOS, Android, and iOS.
Use this guide to quickly set up a VPN with your device in a few simple steps.
With McAfee +, you can minimize your digital footprint through a secure connection channel without compromising your browsing experience. Connect to public networks, make financial transactions online, and keep your personal data safe with McAfee.
With our bank-grade AES-256 bit encryption technology and automatic protection, McAfee VPN protection can help safeguard all your online activities — allowing you to enjoy the internet the way it was meant to be enjoyed.
Explore our full suite of cybersecurity tools included in McAfee +, including our newest service, Personal Data Cleanup. We can help find and remove your personal data on some of the riskiest data broker sites.
The post What’s the Meaning of VPN? VPN Defined appeared first on McAfee Blog.
The Department of Homeland Security (DHS) is urging states and localities to beef up security around proprietary devices that connect to the Emergency Alert System — a national public warning system used to deliver important emergency information, such as severe weather and AMBER alerts. The DHS warning came in advance of a workshop to be held this weekend at the DEFCON security conference in Las Vegas, where a security researcher is slated to demonstrate multiple weaknesses in the nationwide alert system.
A Digital Alert Systems EAS encoder/decoder that Pyle said he acquired off eBay in 2019. It had the username and password for the system printed on the machine.
The DHS warning was prompted by security researcher Ken Pyle, a partner at security firm Cybir. Pyle said he started acquiring old EAS equipment off of eBay in 2019, and that he quickly identified a number of serious security vulnerabilities in a device that is broadly used by states and localities to encode and decode EAS alert signals.
“I found all kinds of problems back then, and reported it to the DHS, FBI and the manufacturer,” Pyle said in an interview with KrebsOnSecurity. “But nothing ever happened. I decided I wasn’t going to tell anyone about it yet because I wanted to give people time to fix it.”
Pyle said he took up the research again in earnest after an angry mob stormed the U.S. Capitol on Jan. 6, 2021.
“I was sitting there thinking, ‘Holy shit, someone could start a civil war with this thing,”’ Pyle recalled. “I went back to see if this was still a problem, and it turns out it’s still a very big problem. So I decided that unless someone actually makes this public and talks about it, clearly nothing is going to be done about it.”
The EAS encoder/decoder devices Pyle acquired were made by Lyndonville, NY-based Digital Alert Systems (formerly Monroe Electronics, Inc.), which issued a security advisory this month saying it released patches in 2019 to fix the flaws reported by Pyle, but that some customers are still running outdated versions of the device’s firmware. That may be because the patches were included in version 4 of the firmware for the EAS devices, and many older models apparently do not support the new software.
“The vulnerabilities identified present a potentially serious risk, and we believe both were addressed in software updates issued beginning Oct 2019,” EAS said in a written statement. “We also provided attribution for the researcher’s responsible disclosure, allowing us to rectify the matters before making any public statements. We are aware that some users have not taken corrective actions and updated their software and should immediately take action to update the latest software version to ensure they are not at risk. Anything lower than version 4.1 should be updated immediately. On July 20, 2022, the researcher referred to other potential issues, and we trust the researcher will provide more detail. We will evaluate and work to issue any necessary mitigations as quickly as possible.”
But Pyle said a great many EAS stakeholders are still ignoring basic advice from the manufacturer, such as changing default passwords and placing the devices behind a firewall, not directly exposing them to the Internet, and restricting access only to trusted hosts and networks.
Pyle, in a selfie that is heavily redacted because the EAS device behind him had its user credentials printed on the lid.
Pyle said the biggest threat to the security of the EAS is that an attacker would only need to compromise a single EAS station to send out alerts locally that can be picked up by other EAS systems and retransmitted across the nation.
“The process for alerts is automated in most cases, hence, obtaining access to a device will allow you to pivot around,” he said. “There’s no centralized control of the EAS because these devices are designed such that someone locally can issue an alert, but there’s no central control over whether I am the one person who can send or whatever. If you are a local operator, you can send out nationwide alerts. That’s how easy it is to do this.”
One of the Digital Alert Systems devices Pyle sourced from an electronics recycler earlier this year was non-functioning, but whoever discarded it neglected to wipe the hard drive embedded in the machine. Pyle soon discovered the device contained the private cryptographic keys and other credentials needed to send alerts through Comcast, the nation’s third-largest cable company.
“I can issue and create my own alert here, which has all the valid checks or whatever for being a real alert station,” Pyle said in an interview earlier this month. “I can create a message that will start propagating through the EAS.”
Comcast told KrebsOnSecurity that “a third-party device used to deliver EAS alerts was lost in transit by a trusted shipping provider between two Comcast locations and subsequently obtained by a cybersecurity researcher.
“We’ve conducted a thorough investigation of this matter and have determined that no customer data, and no sensitive Comcast data, were compromised,” Comcast spokesperson David McGuire said.
The company said it also confirmed that the information included on the device can no longer be used to send false messages to Comcast customers or used to compromise devices within Comcast’s network, including EAS devices.
“We are taking steps to further ensure secure transfer of such devices going forward,” McGuire said. “Separately, we have conducted a thorough audit of all EAS devices on our network and confirmed that they are updated with currently available patches and are therefore not vulnerable to recently reported security issues. We’re grateful for the responsible disclosure and to the security research community for continuing to engage and share information with our teams to make our products and technologies ever more secure. Mr. Pyle informed us promptly of his research and worked with us as we took steps to validate his findings and ensure the security of our systems.”
The user interface for an EAS device.
Unauthorized EAS broadcast alerts have happened enough that there is a chronicle of EAS compromises over at fandom.com. Thankfully, most of these incidents have involved fairly obvious hoaxes.
According to the EAS wiki, in February 2013, hackers broke into the EAS networks in Great Falls, Mt. and Marquette, Mich. to broadcast an alert that zombies had risen from their graves in several counties. In Feb. 2017, an EAS station in Indiana also was hacked, with the intruders playing the same “zombies and dead bodies” audio from the 2013 incidents.
“On February 20 and February 21, 2020, Wave Broadband’s EASyCAP equipment was hacked due to the equipment’s default password not being changed,” the Wiki states. “Four alerts were broadcasted, two of which consisted of a Radiological Hazard Warning and a Required Monthly Test playing parts of the Hip Hop song Hot by artist Young Thug.”
In January 2018, Hawaii sent out an alert to cell phones, televisions and radios, warning everyone in the state that a missile was headed their way. It took 38 minutes for Hawaii to let people know the alert was a misfire, and that a draft alert was inadvertently sent. The news video clip below about the 2018 event in Hawaii does a good job of walking through how the EAS works.
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Introduction In the previous article, we understood how print functions like printf work. This article provides further definition of Format String vulnerabilities. We will begin by discussing how Format Strings can be used in an unusual way, which is a starting point to understanding Format String exploits. Next, we will understand what kind of mistakes […]
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