By Waqas
The official website of Samourai Wallet has been seized, while its official app on the Apple Store and Google Play has been removed.
This is a post from HackRead.com Read the original post: Feds Bust Privacy-Centric Samourai Wallet Over BTC Money Laundering

The United States has taken down the popular “privacy-focused” Bitcoin wallet Samourai, arresting founders and accusing them of laundering $2 billion in crypto, including dark web funds.

The US Department of Justice has arrested the founders of Samourai Wallet, a popular Bitcoin wallet marketed for its strong privacy features. Keonne Rodriguez and William Lonergan Hill now face charges of conspiracy to commit money laundering and operating an unlicensed money transmitting business.

The seized website of the Samourai Wallet (Screenshot: Hackread.com)

Samourai Wallet, known for its “Whirlpool” and “Ricochet” anonymization tools, had long attracted users seeking enhanced privacy for their Bitcoin transactions. However, the DOJ alleges that this cover of secrecy facilitated a staggering amount of illicit activity.

According to the indictment, Samourai allegedly processed over $2 billion in transactions, with at least $100 million originating from illegal dark web marketplaces like Silk Road and Hydra Market.

“For almost 10 years, Keonne Rodriguez and William Hill allegedly operated a mobile cryptocurrency mixing platform which provided other criminals a virtual haven for the clandestine exchange of illicit funds, the facilitation of more than $2 billion in illegal transactions, and $100 million in dark web money laundering,” stated FBI Assistant Director in Charge James Smith. “The FBI is committed to exposing covert financial schemes and ensuring no one can hide behind a screen to perpetuate financial wrongdoing.”

The indictment further accuses Rodriguez and Hill of profiting from these alleged illegal transactions. Samourai allegedly generated millions in fees through its services, raising questions about the company’s true mission.

The takedown of Samourai Wallet has sent shivers down the spines of privacy-focused crypto enthusiasts. Some argue that the ability to conduct anonymous transactions is a core principle of cryptocurrency, essential for protecting users from financial surveillance. Others, however, see the case as validating concerns that criminals can exploit anonymity tools.

The outcome of this case is likely to have a lasting impact on the cryptocurrency industry. It could lead to increased scrutiny of privacy-focused technologies and potentially stricter regulations for cryptocurrency exchanges and wallets.

In the meantime, Samourai Wallet’s website has been seized, and their mobile application is expected to be removed from app stores. Whether Rodriguez and Hill will be found guilty remains to be seen, their arrest goes on to show the the potential consequences for those who operate in the restricted areas of cryptocurrency and anonymity.

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Feds Bust Privacy-Centric Samourai Wallet Over BTC Money Laundering

By Waqas
As the number of applications and systems used in businesses grows, so do the threats and vulnerabilities that…
This is a post from HackRead.com Read the original post: Ensuring the Security and Efficiency of Web Applications and Systems

As the number of applications and systems used in businesses grows, so do the threats and vulnerabilities that can lead to unauthorized access, data breaches, and other security risks. An integral aspect of web application security is protecting both data and applications from potential attacks. 

To do so, it’s essential to be knowledgeable about security fundamentals and stay up-to-date with emerging technologies and methodologies. 

Understanding the importance of web application security benefits system users by safeguarding their data and instills confidence in the business, developers, and stakeholders. Focusing on security and efficiency will build a strong foundation for your web applications and systems, ensuring their long-term success and resilience against ever-evolving threats.

****Understanding Web Application Security****

When securing your web applications, you must be aware of the common vulnerabilities and threats that can compromise your application’s security. Some of the most prevalent issues include:

*   **SQL Injection:** Attackers can insert harmful SQL code into inputs, leading to unauthorized data access or manipulation.
*   **Cross-site Scripting (XSS):** Vulnerable applications may allow the execution of harmful scripts within users’ web browsers.
*   **Cross-site Request Forgery (CSRF):** An attacker can trick users into performing actions they did not intend.

Regularly assessing and auditing your web applications can help in identifying and fixing these vulnerabilities.

****Encryption and Secure Data Transmission****

Utilizing encryption methods, such as HTTPS with SSL/TLS certificates, ensures that sensitive information remains confidential while traveling between the user’s browser and your web server.

It is also important to encrypt any sensitive data stored in your application, such as user credentials and personal information, to prevent unauthorized access or data leaks.

Implementing strong authentication and authorization mechanisms is crucial for maintaining the security of your web applications. Following best practices when designing these mechanisms can help protect your system against unauthorized access:

*   **Use Two-Factor Authentication (2FA):** By requiring users to provide two forms of identification, such as a password and a temporary code, you can greatly enhance the security of your application.
*   **Role-based Access Control (RBAC):** Assign specific permissions and roles to users, limiting their access and actions to only what is necessary.
*   **Session Management:** Implement proper session management controls by handling cookies securely, using secure tokens, and setting appropriate expiration times.

By addressing these areas, you can take a significant step towards ensuring the security and efficiency of your web applications and systems.

****Strategic Security Measures for Applications****

To ensure the security and efficiency of web applications and systems, it’s crucial to implement strategic security measures that protect your valuable data. 

****Firewalls and Intrusion Detection Systems****

A key component of any application security strategy is firewalls and intrusion detection systems. Firewalls play a crucial role in filtering incoming and outgoing network traffic, helping to block unauthorized access and prevent attacks. 

Intrusion detection systems, on the other hand, actively monitor your network for potential threats and vulnerabilities. By deploying both firewalls and intrusion detection systems, you can significantly enhance your application’s security and defend against various cyber-attacks.

****Best Practices for Secure Coding****

Another vital aspect of application security is following best practices for secure coding. By adhering to industry standards and guidelines, you can mitigate common security risks such as code injection or cross-site scripting. Some secure coding practices include input validation, proper error handling, and secure data storage.

****Regular Security Audits and Compliance****

Performing regular security audits is essential for maintaining a secure application. These audits usually involve comprehensive security testing, including penetration testing reports that help identify vulnerabilities within your application. 

Additionally, staying up-to-date with compliance requirements is crucial—by conducting periodic security audits and adhering to compliance standards, you can ensure that your application remains secure and maintains its users’ trust.

Taking these strategic measures helps strengthen your application’s defense against potential threats. Through the implementation of firewalls and intrusion detection systems, adherence to secure coding practices, and regular security audits and compliance, you can build a robust and secure application for your users.

****Preventing Data Breaches and Ensuring Data Integrity****

Input validation is a crucial aspect of securing web applications and systems. It involves checking the data entered by users to ensure it conforms to acceptable formats and doesn’t contain malicious content. By incorporating input validation techniques, you can reduce the risk of unauthorized access to sensitive data, ensuring its integrity and confidentiality.

One effective method of preventing SQL injection attacks, a common cause of data breaches, is to use parameterized queries. These help maintain separation between the SQL code and user-supplied data, reducing opportunities for hackers to manipulate queries. By using full-stack hosting, you can benefit from a robust infrastructure that supports various languages and frameworks, making it easier to implement secure coding practices.

****Data Backup and Recovery Strategies****

Backing up data allows you to quickly recover from a breach, minimizing downtime and potential damage to your business or user reputation.

Implementing a solid data recovery strategy is essential to restore the integrity and privacy of your data in case of a breach. This can include having multiple copies of your backups stored in different locations to ensure at least one remains protected in the event of a breach.

To ensure data integrity, consider using checksums and digital signatures to detect tampering or corruption within your backups. By maintaining a consistent backup and recovery strategy, you can better protect your sensitive data and uphold privacy standards.

****Ensuring Operational Efficiency and Robust Security****

Scalability ensures that your systems can handle growing workloads, maintain performance, and keep running smoothly without affecting the user experience. One way to improve scalability is by implementing decentralized systems.

Decentralized systems distribute processing and data across multiple nodes, reducing the chance of single points of failure and improving availability. A decentralized architecture can also share resources more efficiently, enhance fault tolerance, and maintain security.

****Ongoing Monitoring and Real-Time Response****

Another crucial aspect of ensuring operational efficiency and robust security is continuous monitoring. By actively monitoring your web applications and systems, you can detect potential security threats, vulnerabilities, and performance bottlenecks early on. Therefore, implement a system that provides real-time response to address issues promptly and minimize the impact on users.

To achieve continuous monitoring, consider the following practices:

*   Deploy Security Operations Centers (SOCs) for dedicated monitoring and response.
*   Use automated tools for vulnerability scanning and security testing.
*   Establish strict access control to limit unauthorized access to sensitive information and systems.

****Conclusion****

It is crucial to adopt a comprehensive approach to ensure the security and efficiency of web applications and systems. This includes employing reliable security measures and practices that defend against unauthorized access, data breaches, and other threats. Fortifying your web applications will help protect sensitive information and guarantee user trust.

Regular updates help maintain the highest level of security, as they often include patches to fix vulnerabilities and improve performance. Equally important is the need to implement strong authentication methods. 

Implementing data encryption is another essential measure to safeguard sensitive information. Encrypting data will make it unreadable to unauthorized parties, thus maintaining its confidentiality. By consistently prioritizing security, you can cultivate confidence from your users, strengthen your reputation, and maintain your web applications’ integrity.

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Ensuring the Security and Efficiency of Web Applications and Systems

Mattermost versions 9.6.0, 9.5.x before 9.5.3, 9.4.x before 9.4.5, and 8.1.x before 8.1.12 fail to handle JSON parsing errors in custom status values, which allows an authenticated attacker to crash other users' web clients via a malformed custom status.



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1.  GitHub Advisory Database
2.  GitHub Reviewed
3.  CVE-2024-4182

**Mattermost crashes web clients via a malformed custom status**

Moderate severity GitHub Reviewed Published Apr 26, 2024 to the GitHub Advisory Database • Updated Apr 26, 2024

**Package**

gomod github.com/mattermost/mattermost-server (Go)

**Affected versions**

\>= 8.1.0, <= 8.1.11

\>= 9.4.0, <= 9.4.4

\>= 9.5.0, <= 9.5.2

\>= 9.6.0-rc1, <= 9.6.0

**Patched versions**

8.1.12

9.4.5

9.5.3

9.6.1

**Description**

Published to the GitHub Advisory Database

Apr 26, 2024

Last updated

Apr 26, 2024

GHSA-8f99-g2pj-x8w3: Mattermost crashes web clients via a malformed custom status

python-jose through 3.3.0 allows attackers to cause a denial of service (resource consumption) during a decode via a crafted JSON Web Encryption (JWE) token with a high compression ratio, aka a "JWT bomb." This is similar to CVE-2024-21319.

**python-jose denial of service via compressed JWT tokens**

Moderate severity GitHub Reviewed Published Apr 26, 2024 to the GitHub Advisory Database • Updated Apr 26, 2024

GHSA-cjwg-qfpm-7377: python-jose denial of service via compressed JWT tokens

Hackers can influence voters with media and breach campaigns, or try tampering with votes. Or they can combine these tactics to even greater effect.

Source: Lennart Worthmann via Alamy Stock Photo

If history has anything to tell us, the most significant cyber threat to this year's elections won't be a leak, a distributed denial-of-service (DDoS) attack, or a fake news video. Instead, it will be some combination of these or more.

In cyberspace's salad days, hackers caused all kinds of fuss using simple, direct methods: hiding viruses in advertisements, hacking websites with easily guessed passwords, and so on. While that still happens, attackers often have to get more creative by chaining multiple tactics together in order to achieve their goals, thanks to greater cybersecurity awareness and protections.

So too with elections. In 2006, aides to Joe Lieberman's presidential campaign had to resort to their personal emails when a DoS attack froze their IT systems. A decade later, famously, came the Podesta email leak. Now, according to Mandiant, part of Google Cloud, the most potent threats to the democratic process are chained attacks.

"In the most significant cyber incidents targeting elections that Mandiant has tracked, threat actors have deliberately layered multiple tactics in hybrid operations in such a way that the effect of each component magnifies the others," the firm wrote in a new report.

**Combination Election Attacks**

One case study Mandiant pointed to occurred in 2014 when Ukraine's presidential elections were interrupted by a Russian cyber onslaught, following the ouster of its pro-Russian president Viktor Yanukovich, and Russia's invasion of Crimea.

A week before election day, Russian actors hiding behind the hacktivist moniker "Cyber Berkut" struck websites relating to NATO and Ukrainian media outlets with DDoS attacks. That set the stage for when, with four days to go, the same fake hacktivist group broke into the country's central election computers and deleted files and rendered the vote tallying system inoperable.

A day later, they added to the chaos by breaking more election infrastructure, then leaking the emails and documents stored there to the wider Internet. Lastly, just 40 minutes before election results were to be broadcast to the public, the country's Central Election Commission reportedly removed some kind of virus that was designed to present fake results in favor of the far-right, ultra-nationalist candidate.

This extreme brand of combination cyber warfare might have only happened in a country experiencing such upheaval, but other chained cyberattacks have struck more-stable democracies since.

In 2020, two 20-something Iranian nationals carried out a campaign against multiple US states' voting-related websites. They managed to obtain confidential voter information from at least one of them, which they used to send intimidating and misleading emails, including by spreading a video with disinformation about election infrastructure vulnerabilities. They also breached one media company, which, as the Department of Justice noted, could have provided them another channel through which to disseminate their false claims.

"Leaks are particularly powerful. Potentially more powerful when boosted through the compromise of legitimate media," says John Hultquist, chief analyst with Mandiant Intelligence at Google Cloud.

The breach/fake news ploy is a potent concoction. "These disinformation efforts are often orchestrated by state-backed entities from nations such as China, Russia, and Iran," warns Madison Horn, herself a 2024 candidate running for a congressional seat in Oklahoma's 5th district. "Their impact is undeniable, as seen in instances like Russia’s involvement in the 2016 US election and China’s ongoing global influence operations, which starkly demonstrate their capacity to sway public opinion and disrupt electoral integrity."

**The Threat From Cybercrime**

It's not only state-sponsored actors that pose a threat to the democratic process, Mandiant noted. Insiders, hacktivists, and cybercriminals all muddy the waters in their own ways.

In most cases, "The avenues for these campaigns are popular social media platforms — X, Telegram, Facebook — and YouTube, making the digital battlefield as accessible as it is dangerous," Horn warns.

From January 2023 to March 2024, the cybersecurity firm BrandShield tracked suspicious new social media accounts and web domains relating to Joe Biden's and Donald Trump's presidential campaigns. It found hundreds of imposter accounts across social media sites, as well as 2,335 suspect websites claiming some sort of affiliation with the president and 9,639 for the former president (helped by a 197% boost following his arrest in August).

Fake Trump site. Source: BrandShield

Fake sites and accounts are useful for spreading scams or malware and for stealing funds that voters intended to go to candidates, or they can be used in concert with other tactics to achieve greater ends.

"They can be used to get people's information, and maybe try to influence their views by distributing fake news," says BrandShield CEO Yoav Keren, formerly an adviser in the Israeli Knesset. "I would even think that they can use these platforms to interact with real people from the campaigns, to infiltrate their systems. These impersonations can be used in a lot of different ways."

"I don't want to give too many good ideas to the bad guys," he says, "but they usually come up with them before I do."

**About the Author(s)**

Nate Nelson is a freelance writer based in New York City. Formerly a reporter at Threatpost, he contributes to a number of cybersecurity blogs and podcasts. He writes "Malicious Life" -- an award-winning Top 20 tech podcast on Apple and Spotify -- and hosts every other episode, featuring interviews with leading voices in security. He also co-hosts "The Industrial Security Podcast," the most popular show in its field.

The Biggest 2024 Elections Threat: Kitchen-Sink Attack Chains

Plus, new details emerge on the Scattered Spider cybercrime network and ArcaneDoor.

Thursday, April 25, 2024 14:00

I wrote last week about the problems arising from the massive backlog of vulnerabilities at the U.S. National Vulnerability Database.  

Thousands of CVEs are still without analysis data, and the once-reliable database of every single vulnerability that’s disclosed and/or patched is now so far behind, it could take up to 100 days for the National Institute of Standards and Technology (NIST) to catch up, and that would be assuming no new vulnerabilities are disclosed during that period. 

While the U.S. government and NIST try to sort out a potential solution, and hopefully await more funding and restructuring, NIST says it’s hoping to launch a consortium to help either rebuild the NVD or create a replacement.  

Other security experts have floated the idea of other companies or organizations creating a brand-new solution of their own. The main problem with that is, what’s in it for them?  

What works about the NVD is that it’s funded by the U.S. government, so the money is always coming in to help fund the workforce and at least gives MITRE and the other private companies who contribute to the NVD motivation to keep working on it. 

To start up a whole new database of \*every\* CVE out there would take countless man-hours, and then what at the end? Would the company or person(s) who created it start charging for access? 

Several open-source solutions have_man-hours_ popped up over the past few weeks, such as “NVD Data Overrides,” which “is meant to provide additional data that is currently missing from NVD.” However, these types of volunteer projects still can’t assign CVSS scores, because only the NVD is authorized to hand out official NVD CVSS scores. 

This brings up another problem for private companies that may want to develop a solution: Do they want to play referee?  

Sometimes, when there’s a disagreement on how severe a vulnerability is and what severity score to assign it, the NVD will weigh in and provide their own, independently calculated CVSS score. Who really wants to be the “bad guy” to get between a massive tech company like Microsoft or Apple and a security researcher saying a vulnerability is a 9.5 out of 10 CVSS? 

I absolutely give major credit to any volunteers or open-source developers who are working on their own solutions for essentially nothing — but how long can we expect them to keep maintaining these databases? 

Unfortunately, I don’t have a great answer for this, either. I’m far from an expert on vulnerability management, nor do I have any connections to the federal government. But I do feel the onus is on the government to come up with a solution, and potentially provide incentives for companies and researchers to participate in this new proposed consortium because I don’t see the incentives there for the private sector to come up with their own solution.  

**The one big thing **

ArcaneDoor is a new campaign that is the latest example of state-sponsored actors targeting perimeter network devices from multiple vendors. Talos and Cisco PSIRT recently identified a previously unknown actor, now tracked as UAT4356 by Talos and STORM-1849 by the Microsoft Threat Intelligence Center. This actor utilized bespoke tooling that demonstrated a clear focus on espionage and an in-depth knowledge of the devices that they targeted, hallmarks of a sophisticated state-sponsored actor. UAT4356 deployed two backdoors as components of this campaign, “Line Runner” and “Line Dancer,” which were used collectively to conduct malicious actions on-target, which included configuration modification, reconnaissance, network traffic capture/exfiltration and potentially lateral movement.   

**Why do I care? **

Gaining a foothold on these devices allows an actor to directly pivot into an organization, reroute or modify traffic and monitor network communications. In the past two years, we have seen a dramatic and sustained increase in the targeting of these devices in areas such as telecommunications providers and energy sector organizations — critical infrastructure entities that are likely strategic targets of interest for many foreign governments. As a critical path for data into and out of the network, these devices need to be routinely and promptly patched; using up-to-date hardware and software versions and configurations; and be closely monitored from a security perspective. 

**So now what? **

There are some known indicators of compromise that customers can look for if they suspect they may have been targeted in this campaign. First, organizations should look for any flows to/from ASA devices to any of the IP addresses present in the IOC list provided at the bottom of this blog. This is one indication that further investigation is necessary. Potential targets can also follow the steps detailed in the Cisco ASA Forensic Investigation Procedures for First Responders. When following these procedures, first responders should NOT attempt to collect a core dump or reboot the device if they believe that the device has been compromised, based on the lina memory region output. Talos also released some Snort signatures to detect the activity on the wire including access attempts. Snort Signatures 63139, 62949 and 45575 have been released to detect the implants or associated behaviors. 

**Top security headlines of the week **

**A previously known Windows print spooler bug is still being actively exploited, according to Microsoft.** The company’s threat research team recently disclosed that APT28, a well-known Russian state-sponsored actor, is exploiting the vulnerability to deliver a previously unknown malware called “GooseEgg.” Microsoft disclosed and patched CVE-2022-38028 in October 2022, but APT28 may have been exploiting it as far back as 2020. The actor’s exploitation involved modifying a JavaScript constraints file in the printer spooler and executing it with SYSTEM-level permissions. The new research prompted the U.S. Cybersecurity and Infrastructure Security Agency (CISA) to add CVE-2022-38028 to its Known Exploited Vulnerabilities (KEV) catalog. If installed, GooseEgg can load other applications with System-level permissions and allow the adversary to execute remote code on the targeted device or deploy other backdoors. Another set of print spooler vulnerabilities, called PrintNightmare, made headlines in July 2021, though no one reported active exploitation of that vulnerability at the time. (SC Magazine, Security Week) 

**A new investigation revealed how members of the group Scattered Spider are partnering with Russian state-sponsored actors to carry out ransomware attacks.** Scattered Spider is made up of younger individuals based out of the U.S., U.K. and Canada. They are primarily English speakers who have been blamed for several notable ransomware attacks, including one against MGM Casinos that disrupted operations at several casinos and hotels last year. The group specializes in social engineering, more recently using LinkedIn to steal employee information and use that to infiltrate corporate networks. Members, some as young as teenagers, are connecting over the dark web and online forums like Discord and use their advanced knowledge of Western civilization to provide crucial details to Russian actors. The “60 Minutes” investigation also included new details about The Community (aka “The Comm,” the online collection of hackers who like to brag about their recent cybercrimes, often through Telegram. (CBS News) 

**The U.S. government has re-upped a law that expands government surveillance by opening the door for private companies to partner with the government on these types of activities.** The controversial Foreign Intelligence Surveillance Act (FISA) was re-approved just hours after it lapsed. The White House and proponents in U.S. Congress argued that the powers granted in Section 702 of the FISA helps prevent the spread of terrorism and cyber attacks and that any lapse in those powers would harm the government’s ability to gather crucial intelligence. However, privacy advocates say that the FISA is an overreach, and provides too much power for private companies to potentially spy on consumers. The bill also includes a new definition of “electronic communications service provider,” which could allow the U.S. government to force Big Tech companies and telecommunications providers to hand over users’ data if requested. (NBC News, TechCrunch) 

**Can’t get enough Talos? **

*   Talos Takes Ep. #180: What are the dangers of enabling sideloading and third-party apps? 
*   Suspected CoralRaider continues to expand victimology using three information stealers 
*   Brute-force attacks surge worldwide, warns Cisco Talos    
*   Cisco Warns of Massive Surge in Password-Spraying Attacks on VPNs 
*   Rare Computer Virus Detected in Ukrainian Network, Confidential Document Potentially Compromised 

**Upcoming events where you can find Talos **

**CARO Workshop 2024** **(May 1 - 3)** 

_Arlington, Virginia_

> Over the past year, we’ve observed a substantial uptick in attacks by YoroTrooper, a relatively nascent espionage-oriented threat actor operating against the Commonwealth of Independent Countries (CIS) since at least 2022. Asheer Malhotra's presentation at CARO 2024 will provide an overview of their various campaigns detailing the commodity and custom-built malware employed by the actor, their discovery and evolution in tactics. He will present a timeline of successful intrusions carried out by YoroTrooper targeting high-value individuals associated with CIS government agencies over the last two years.

**RSA** **(May 6 - 9)** 

_San Francisco, California_    

**Cisco Live** **(June 2 - 6)** 

_Las Vegas, Nevada_  

**Most prevalent malware files from Talos telemetry over the past week **

_This section will be on a brief hiatus while we work through some technical difficulties._ _Several open-source solutions have_

The private sector probably isn’t coming to save the NVD

Ubuntu Security Notice 6750-1 - Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, bypass security restrictions, cross-site tracing, or execute arbitrary code. Bartek Nowotarski discovered that Thunderbird did not properly limit HTTP/2 CONTINUATION frames. An attacker could potentially exploit this issue to cause a denial of service.

    ==========================================================================Ubuntu Security Notice USN-6750-1April 25, 2024thunderbird vulnerabilities==========================================================================A security issue affects these releases of Ubuntu and its derivatives:- Ubuntu 23.10- Ubuntu 22.04 LTS- Ubuntu 20.04 LTSSummary:Several security issues were fixed in Thunderbird.Software Description:- thunderbird: Mozilla Open Source mail and newsgroup clientDetails:Multiple security issues were discovered in Thunderbird. If a user weretricked into opening a specially crafted website in a browsing context, anattacker could potentially exploit these to cause a denial of service,obtain sensitive information, bypass security restrictions, cross-sitetracing, or execute arbitrary code. (CVE-2024-2609, CVE-2024-3852,CVE-2024-3864)Bartek Nowotarski discovered that Thunderbird did not properly limit HTTP/2CONTINUATION frames. An attacker could potentially exploit this issue tocause a denial of service. (CVE-2024-3302)Lukas Bernhard discovered that Thunderbird did not properly manage memoryduring JIT optimisations, leading to an out-of-bounds read vulnerability.An attacker could possibly use this issue to cause a denial of service orexpose sensitive information. (CVE-2024-3854)Lukas Bernhard discovered that Thunderbird did not properly manage memorywhen handling JIT created code during garbage collection. An attackercould potentially exploit this issue to cause a denial of service, orexecute arbitrary code. (CVE-2024-3857)Ronald Crane discovered that Thunderbird did not properly manage memory inthe OpenType sanitizer on 32-bit devices, leading to an out-of-bounds readvulnerability. An attacker could possibly use this issue to cause a denialof service or expose sensitive information. (CVE-2024-3859)Ronald Crane discovered that Thunderbird did not properly manage memorywhen handling an AlignedBuffer. An attacker could potentially exploit thisissue to cause denial of service, or execute arbitrary code. (CVE-2024-3861)Update instructions:The problem can be corrected by updating your system to the followingpackage versions:Ubuntu 23.10:  thunderbird                     1:115.10.1+build1-0ubuntu0.23.10.1Ubuntu 22.04 LTS:  thunderbird                     1:115.10.1+build1-0ubuntu0.22.04.1Ubuntu 20.04 LTS:  thunderbird                     1:115.10.1+build1-0ubuntu0.20.04.1In general, a standard system update will make all the necessary changes.References:  https://ubuntu.com/security/notices/USN-6750-1  CVE-2024-2609, CVE-2024-3302, CVE-2024-3852, CVE-2024-3854,  CVE-2024-3857, CVE-2024-3859, CVE-2024-3861, CVE-2024-3864Package Information:  https://launchpad.net/ubuntu/+source/thunderbird/1:115.10.1+build1-0ubuntu0.23.10.1  https://launchpad.net/ubuntu/+source/thunderbird/1:115.10.1+build1-0ubuntu0.22.04.1  https://launchpad.net/ubuntu/+source/thunderbird/1:115.10.1+build1-0ubuntu0.20.04.1

Ubuntu Security Notice USN-6750-1

The FTC is paying Ring customers in the US a totoal of $5.6 million over charges that the company allowed employees to access private videos.

Amazon’s Ring has settled with the Federal Trade Commission (FTC) over charges that the company allowed employees and contractors to access customers’ private videos, and failed to implement security protections which enabled hackers to take control of customers’ accounts, cameras, and videos.

The FTC is now sending refunds totaling more than $5.6 million to US consumers as a result of the settlement.

Ring LLC, which was purchased by Amazon in February 2018, sells internet-connected, home security cameras and video doorbells.

However, in a shocking lapse of security protection, it turned out that every single person working for Amazon Ring, whether they were an employee or a contractor, was able to access every single customer video, even when it wasn’t necessary for their jobs.

But that wasn’t the only issue. In May 2023, the FTC stated that:

> “Ring deceived its customers by failing to restrict employees’ and contractors’ access to its customers’ videos, using its customer videos to train algorithms without consent, and failing to implement security safeguards. These practices led to egregious violations of users’ privacy.”

The FTC gave the example of one employee who, over several months, viewed thousands of video recordings belonging to female users of Ring cameras that were pointed at intimate spaces in their homes such as their bathrooms or bedrooms. This didn’t stop until another employee discovered the misconduct.

The FTC is now sending 117,044 PayPal payments to US customers who had certain types of Ring devices, such as indoor cameras, during periods when the FTC alleges unauthorized users may have had access to customer videos. Customers should redeem their PayPal payment within 30 days.

“The FTC identified eligible Ring customers based on data provided by the company,” the agency told BleepingComputer, clarifying that Ring users “were eligible for a payment if their account was vulnerable because of privacy and security problems alleged in the complaint.”

Consumers who have questions about their payment should contact the refund administrator, Rust Consulting, Inc., at 1-833-637-4884, or visit the FTC website to view frequently asked questions about the refund process.

**Beware of scammers**

As always, you can expect scammers to take advantage of this news. So, it’s important to know that the FTC never asks people to pay money or provide account information to get a refund.

A payment or claim form sent as part of an FTC settlement will include an explanation of, and details about, the case. The case will be listed at ftc.gov/refunds, along with the name of the company issuing payments and a phone number for questions.

The FTC only works with four private companies to handle the refund process:

*   Analytics Consulting, LLC
*   Epiq Systems
*   JND Legal Administration
*   Rust Consulting, Inc.

Before sending any PayPal payment, the FTC will send an email from the subscribe@subscribe.ftc.gov address to issue a payment recipient. Once payments have been issued, PayPal will send an email telling recipients about their refund.

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 Ring agrees to pay $5.6 million after cameras were used to spy on customers 

By Waqas
Using Google Chrome? Update your browser to the latest version right now!
This is a post from HackRead.com Read the original post: Google Patches Critical Chrome Vulnerability and Additional Flaws

Google Chrome users beware! A critical vulnerability (CVE-2024-4058) has been patched in the latest update (version 124). This flaw could allow attackers to take control of your system.

Google addressed a critical vulnerability (CVE-2024-4058) in its Chrome web browser on Wednesday, April 24th, 2024. This flaw resides within the ANGLE graphics layer engine and carries a “critical” severity rating, indicating its potential for severe exploitation.

While the critical CVE-2024-4058 garnered the most attention, Google’s Chrome update (version 124) also patched two additional high-severity vulnerabilities:

*   **CVE-2024-4059:** This vulnerability is classified as an out-of-bounds read within the V8 JavaScript engine. An out-of-bounds read allows attackers to access memory locations they shouldn’t, potentially revealing sensitive information.
*   **CVE-2024-4060:** This vulnerability is a use-after-free issue in the Dawn component. Use-after-free vulnerabilities can lead to crashes or potentially code execution depending on how they are exploited.

****The Importance of Updating****

While the specific details and exploitability of CVE-2024-4059 and CVE-2024-4060 are not yet fully public, it’s important to update Chrome regardless. A high-severity rating suggests these vulnerabilities could also be weaponized by attackers, so patching promptly remains the best course of action.

Jason Soroko, Senior Vice President of Product at Sectigo commented on the update stating, _“_CVE-2024-4058, a Type Confusion in ANGLE, is a vulnerability categorized as critical because it could allow remote code execution (RCE), enabling attackers to put malware onto the victim’s device. This latest vulnerability is a bad one for sure, and therefore it would be critical to patch this immediately._”_

****How to Protect Yourself****

The safest course of action is to update your Google Chrome browser immediately. Google has released Chrome version 124 which addresses this vulnerability alongside other security fixes. Here’s how to update Chrome:

*   **Windows & Mac:** Open Chrome, click the three vertical dots in the top right corner, go to “Help” and then “About Chrome.” Chrome will automatically check for updates and install them if available.
*   **Linux:** The update process for Linux may vary depending on your distribution. Consult your distribution’s documentation for specific update instructions.

Updating to Chrome version 124 protects you from these critical, high-severity, and potentially dangerous vulnerabilities. For additional technical details and a full list of changes in this build visit the Log section.

1.  Critical Chrome Update Counters Spyware Vendor’s Exploits
2.  Google Chrome to Mask User IP Addresses to Protect Privacy
3.  Fake Chrome Browser Update Installs NetSupport Manager RAT
4.  CISA Warns of Chrome and Excel Parsing LibraryExploitable Flaws
5.  Fantom Foundation Suffers Wallet Hack Via Google Chrome 0-Day

Google Patches Critical Chrome Vulnerability and Additional Flaws

Within BEC attacks, adversaries will send phishing emails appearing to be from a known or reputable source making a valid request, such as updating payroll direct deposit information.

Thursday, April 25, 2024 08:00

Business email compromise (BEC) was the top threat observed by Cisco Talos Incident Response (Talos IR) in the first quarter of 2024, accounting for nearly half of engagements, which is more than double what was observed in the previous quarter.  

The most observed means of gaining initial access was the use of compromised credentials on valid accounts, which accounted for 29 percent of engagements. The high number of BEC attacks likely played a significant role in valid accounts being the top attack vector this quarter. Weaknesses involving multi-factor authentication (MFA) were observed within nearly half of engagements this quarter, with the top observed weakness being users accepting unauthorized push notifications, occurring within 25 percent of engagements.  

There was a slight decrease in ransomware this quarter, accounting for 17 percent of engagements. Talos IR responded to new variants of Phobos and Akira ransomware for the first time this quarter. 

Manufacturing was the most targeted vertical this quarter, closely followed by education, a continuation from Q4 2024 where manufacturing and education were also two of the most targeted verticals. There was a 20 percent increase in manufacturing engagements from the previous quarter. 

The manufacturing sector faces unique challenges due to its inherently low tolerance for operational downtime. This quarter, Talos IR observed a wide range of threat activity targeting manufacturing organizations including financially motivated attacks, such as BEC and ransomware, and some brute force activity targeting virtual private network (VPN) infrastructure. The use of compromised credentials on valid accounts was the top observed attack vector within attacks targeting the manufacturing sector this quarter, which represents a change from the previous quarter when the top attack vector observed in these types of engagements was exploiting vulnerabilities in public-facing applications.   

**Watch discussion on the report's biggest trends**

**Surge in BEC **

Within BEC attacks, adversaries will send phishing emails appearing to be from a known or reputable source making a valid request, such as updating payroll direct deposit information. BEC attacks can have many motivations, often financially driven, aimed at tricking organizations into transferring funds or sensitive information to malicious actors.  

BEC offers adversaries the advantage of impersonating trusted contacts to facilitate internal spearphishing attacks that can bypass traditional external defenses and increase the likelihood of deception, widespread malware infections and data theft. 

In one engagement, adversaries performed a password-spraying attack and MFA exhaustion attacks against several employee accounts. There was a lack of proper MFA implementation across all the impacted accounts, leading to the adversaries gaining access to at least two accounts using single-factor authentication. The organization detected and disrupted the attack before adversaries could further their access or perform additional post-compromise activities.    

In another cluster of activity, several employees received spear-phishing emails that contained links that, when clicked, led to a redirection chain of web pages ultimately landing on a legitimate single sign-on (SSO) prompt that was pre-populated with each victim’s email address. The attack was unsuccessful because none of the employees interacted with the email, which was likely due to multiple red flags. For example, the email was unexpected and sent from an external email address, and there was small text within the email that referred to the email as a fax, which was all indicators of a phishing attempt. 

**Ransomware trends **

Ransomware accounted for 17 percent of engagements this quarter, an 11 percent decrease from the previous quarter. Talos IR observed new variants of Akira and Phobos ransomware for the first time this quarter. 

**Akira **

Talos IR responded to an Akira ransomware attack for the first time this quarter in an engagement where affiliates deployed the latest ESXi version, “Akira\_v2,” as well as a Windows-based variant of Akira named “Megazord.” These new Akira variants are written in the Rust programming language, which is a notable change from the previously used C++ and Crypto++ programming languages.  

Talos IR could not determine how initial access was gained, which is common because ransomware attacks often involve multi-stage attack strategies that add additional complexity during the investigation process. Once inside the network, the adversaries began collecting credentials from the memory of the Local Security Authority Subsystem Service (LSASS) and the New Technology Directory Services Directory Information Tree (NTDS.dit) database, where Active Directory data is stored, and leveraged Remote Desktop Protocol (RDP) for lateral movement. Prior to encryption, Megazord ransomware began executing several commands to disable tools and impair defenses, including “net stop” and “taskkill.” Akira\_v2 appended the file extension “.akiranew” during encryption, while Megazord ransomware appended the file extension “.powerranges”.   

First discovered in early 2023, Akira operates as a ransomware-as-a-service (RaaS) model and employs a double extortion scheme that involves exfiltrating data before encryption. Akira affiliates are known to heavily target small- to medium-sized businesses within several verticals primarily located within the U.S. but have targeted organizations within the U.K., Canada, Iceland, Australia and South Korea. Akira affiliates are notorious for leveraging compromised credentials and exploiting vulnerabilities as a means of gaining initial access, such as the SQL injection vulnerability, tracked as CVE-2021-27876, affecting certain versions of Zoho ManageEngine ADSelfService Plus, and the vulnerability, tracked as CVE-2023-27532, affecting certain versions of Veeam’s Backup & Replication (VBS) software.    

**Phobos **

Talos IR has previously observed variants of Phobos ransomware, such as “Faust,” but this quarter, Talos IR responded to an engagement with the “BackMyData” variant of Phobos ransomware. The adversaries leveraged Mimikatz to dump credentials from Active Directory. The adversary also installed several tools in the NirSoft product suite designed to recover passwords, such as PasswordFox and ChromePass, for additional credential enumeration. 

The adversaries used PsExec to access the domain controller before setting a registry key to permit remote desktop connections. Shortly after, the adversaries also modified the firewall to allow remote desktop connections using the Windows scripting utility, netsh. The remote access tool AnyDesk was downloaded to enable remote access as a means of persistence in the environment. Talos IR assessed with high confidence that Windows Secure Copy (WinSCP) and Secure Shell (SSH) were likely used to exfiltrate staged data. Adversaries also relied on PsExec to execute commands, such as deleting volume shadow copies, as a precursor to deploying the ransomware executable. After encryption, the ransomware appended the file extension “.fastbackdata”.   

A notable finding was the persistent use of the “Users/\[username\]/Music” directory as a staging area for data exfiltration to host malicious scripts, tools and malware, a common technique used by numerous ransomware affiliates to evade detection and remain persistent in the environment. Talos IR also identified a digitally signed executable, “HRSword,” developed by Beijing Huorong Network Technology. It is a tool the affiliate used during the attack for potential secure file deletion and as a defensive measure to disable endpoint protection tools, which Phobos affiliates were previously using, according to public reporting.   

Phobos ransomware first emerged in late 2018 and shared many similarities with the Crysis and Dharma ransomware families. Unlike other ransomware families, there are many variants of Phobos ransomware, such as Eking, Eight, Elbie, Devos and Faust. There is little information known about the business model leveraged by the Phobos ransomware operation. In November 2023, Cisco Talos analyzed over a thousand samples of Phobos ransomware to learn more about the affiliate structure and activity, which revealed that Phobos may operate a RaaS model due to the hundreds of contact emails and IDs associated with Phobos campaigns, indicating the malware has a dispersed affiliate base. Talos assessed with moderate confidence that the Phobos ransomware operation is actively managed by a central authority, as there is only one private key capable of decryption in all observed campaigns. 

**Other observed threats  **

Talos IR responded to an attack where adversaries were attempting to brute force several Cisco Adaptive Security Appliances (ASAs). Although the adversaries were unsuccessful in their attack, this activity is in line with the recently observed trend affecting VPN services. 

Cisco Talos has recently seen an increase in malicious activity targeting VPN services, web application authentication interfaces, and Secure Shell (SSH) globally. Since at least March 18, Cisco has observed scanning and brute force activity sourcing from The Onion Router (TOR) exit nodes and other anonymous tunnels and proxies. 

Depending on the target environment, a successful attack could result in unauthorized access to a target network, possibly leading to account lockouts and denial-of-service (DoS) conditions. The brute force attempts include a combination of generic usernames and valid usernames unique to specific organizations. The activity seems indiscriminate and has been observed across multiple industry verticals and geographic regions. 

**Initial vectors **

The most observed means of gaining initial access was the use of compromised credentials on valid accounts, accounting for 29 percent of engagements, a continuation of a trend from the previous quarter when valid accounts were also a top attack vector. 

**Security weaknesses **

For the first time, users accepting unauthorized MFA push notifications was the top observed security weakness, accounting for 25 percent of engagements this quarter. The lack of proper MFA implementation closely followed, accounting for 21 percent of engagements, a 44 percent decrease from the previous quarter. 

Users must have a clear understanding of the appropriate business response protocols when their devices are overwhelmed with an excessive volume of push notifications. Talos IR recommends organizations educate their employees about the specific channels and points of contact for reporting these incidents. Prompt and accurate reporting enables security teams to quickly identify the nature of the issue and implement the necessary measures to address the situation effectively. Organizations should also consider implementing number-matching in MFA applications to provide an additional layer of security to prevent users from accepting malicious MFA push notifications. 

Talos IR recommends implementing MFA on all critical services including all remote access and identity access management (IAM) services. MFA will be the most effective method for the prevention of remote-based compromises. It also prevents lateral movement by requiring all administrative users to provide a second form of authentication. Organizations can set up alerting for single-factor authentication to quickly identify potential gaps. 

**Top observed MITRE ATT&CK techniques **

The table below represents the MITRE ATT&CK techniques observed in this quarter’s IR engagements and includes relevant examples and the number of times seen. Given that some techniques can fall under multiple tactics, we grouped them under the most relevant tactic based on the way they were leveraged. Please note, this is not an exhaustive list. 

Key findings from the MITRE ATT&CK framework include:  

*   Remote access software, such as SplashTop and AnyDesk, were used in 17 percent of engagements this quarter, a 20 percent decrease from the previous quarter.  
*   The use of email hiding rules was the top observed defense evasion technique, accounting for 21 percent of engagements this quarter.   
*   Scheduled tasks were leveraged by adversaries the most this quarter for persistence, accounting for 17 percent of engagements this quarter, a 33 percent increase from the previous quarter.  
*   The abuse of remote services, such as RDP, SSH, SMB and WinRM, more than doubled this quarter compared to the previous quarter, accounting for nearly 60 percent of engagements. 

Reconnaissance 

Example 

T1589.001 Gather Victim Identity Information: Credentials 

Adversaries may gather credentials that can be used during their attack.  

T1598.003 Phishing for Information: Spearphishing Link 

Adversaries may send a spearphishing email with a link to a credential harvesting page to collect credentials for their attack. 

Resource Development 

Example 

T1586.002 Compromise Accounts: Email Accounts 

Adversaries may compromise email accounts that can be used during their attack for malicious activities, such as internal spearphishing. 

T1583.001 Acquire Infrastructure: Domains 

Adversaries may acquire domains that can be used for malicious activities, such as hosting malware. 

T1608.001 Stage Capabilities: Upload Malware 

Adversaries may upload malware to compromised domains to make it accessible during their attack.  

T1583.008 Acquire Infrastructure: Malvertising 

Adversaries may purchase online advertisements, such as Google ads, that can be used distribute malware to victims. 

T1608.004 Stage Capabilities: Drive-by Target 

Adversaries may prepare a website for drive-by compromise by inserting malicious JavaScript.  

Initial Access 

Example 

T1078 Valid Accounts 

Adversaries may use compromised credentials to access valid accounts during their attack. 

T1566 Phishing 

Adversaries may send phishing messages to gain access to target systems. 

T1189 Drive-by Compromise 

Victims may infect their systems with malware over browsing, providing an adversary with access.  

T1190 Exploit in Public-Facing Application 

Adversaries may exploit a vulnerability to gain access to a target system. 

T1566.002 Phishing: Spearphishing Link 

Adversaries may send phishing emails with malicious links to lure victims into installing malware.  

Execution 

Example 

T1059.001 Command and Scripting Interpreter: PowerShell 

Adversaries may abuse PowerShell to execute commands or scripts throughout their attack. 

T1059.003 Command and Scripting Interpreter: Windows Command Shell 

Adversaries may abuse Windows Command Shell to execute commands or scripts throughout their attack. 

T1569.002 System Services: Service Execution 

Adversaries may abuse Windows service control manager to execute commands or payloads during their attack. 

Persistence 

Example 

T1053.005 Scheduled Task / Job: Scheduled Task 

Adversaries may abuse the Windows Task Scheduler to perform task scheduling for recurring execution of malware or malicious commands. 

T1574.002 Hijack Execution: DLL Side-Loading 

Adversaries may execute their own malicious code by side-loading DLL files into legitimate programs.  

Privilege Escalation 

Example 

T1548.002 Abuse Elevation Control Mechanism: Bypass User Account Control 

Adversaries may bypass UAC mechanisms to elevate their permissions on a system. 

Defense Evasion 

Example 

T1564.008 Hide Artifacts: Email Hiding Rules 

Adversaries may create inbox rules to forward certain incoming emails to a folder to hide them from the inbox owner. 

T1070.004 Indicator Removal: File Deletion 

Adversaries may delete files to cover their tracks during the attack.  

T1218.011 System Signed Binary Proxy Execution: Rundll32 

Adversaries may abuse the Windows utility rundll32.exe to execute malware.  

T1112 Modify Registry 

Adversaries may modify the registry to maintain persistence on a target system.  

T1562.010 Impair Defenses: Downgrade Attack 

Adversaries may downgrade a program, such as PowerShell, to a version that is vulnerable to exploits. 

Credential Access 

Example 

T1621 Multi-Factor Authentication Request Generation 

Adversaries may generate MFA push notifications causing an MFA exhaustion attack. 

T1003.005 OS Credential Dumping: NTDS 

Adversaries may dump the contents of the NTDS.dit file to access credentials that can be used for lateral movement. 

T1003.001 OS Credential Dumping: LSASS 

Adversaries may dump the contents of LSASS to access credentials that can be used for lateral movement 

T1003.002 OS Credential Dumping: Service Account Manager 

Adversaries may dump the contents of the service account manager to access credentials that can be used for lateral movement. 

T1110.002 Brute Force: Password Cracking 

Adversaries may use brute force account passwords to compromise accounts. 

Discovery 

Example 

T1069.001 Permission Groups Discovery: Local Groups 

Adversaries may attempt to discover local permissions groups with commands, such as “net localgroup.”  

T1069.002 Permission Groups Discovery: Domain Groups 

Adversaries may attempt to discover domain groups with commands, such as “net group /domain.” 

T1201 Password Policy Discovery 

Adversaries may attempt to discover information about the password policy within a compromised network with commands, such as “net accounts.” 

Lateral Movement 

Example 

T1021.001 Remote Services: Remote Desktop Protocol 

Adversaries may abuse valid accounts using RDP to move laterally in a target environment.  

T1534 Internal Spearphishing 

Adversaries may abuse a compromised email account to send internal spearphishing emails to move laterally. 

T1021.002 Remote Services: SMB / Windows Admin Shares 

Adversaries may abuse valid accounts using SMB to move laterally in a target environment. 

T1021.004 Remote Services: SSH 

Adversaries may abuse valid accounts using SSH to move laterally in a target environment. 

T1021.001 Remote Services: Windows Remote Management 

Adversaries may abuse valid accounts using WinRM to move laterally in a target environment. 

Collection 

Example 

T1114.002 Email Collection: Remote Email Collection 

Adversaries may target a Microsoft Exchange server to collect information.  

T1074.001 Data Staged: Local Data Staging 

Adversaries may stage collected data in preparation for exfiltration. 

T1074 Data Staged 

Adversaries may stage collected data in preparation for exfiltration. 

Command and Control 

Example 

T1105 Ingress Tool Transfer 

Adversaries may transfer tools from an external system to a compromised system. 

T1219 Remote Access Software  

Adversaries may abuse remote access software, such as AnyDesk, to establish an interactive C2 channel during their attack.  

Exfiltration 

Example 

T1567.002 Exfiltration Over Web Service: Exfiltration to Cloud Storage 

Adversaries may exfiltrate data to a cloud storage provider, such as Dropbox.  

Impact 

Example 

T1486 Data Encrypted for Impact 

Adversaries may use ransomware to encrypt data on a target system.  

T1490 Inhibit System Recovery 

Adversaries may disable system recovery features, such as volume shadow copies.  

T1657 Financial Theft 

Adversaries may commit financial fraud during the attack.

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