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Researchers Detail AppSync Cross-Tenant Vulnerability in Amazon Web Services

Researchers Detail AppSync Cross-Tenant Vulnerability in Amazon Web Services

November 28, 2022Ravie Lakshmanan
Amazon Web Services (AWS) has resolved a cross-tenant vulnerability in its platform that could be weaponized by an attacker to gain unauthorized access to resources. The issue relates to a  confused deputy problem , a type of privilege escalation where a program that doesn't have permission to perform an action can coerce a more-privileged entity to perform the action. The shortcoming was reported by Datadog to AWS on September 1, 2022, following which a patch was shipped on September 6. "This attack abuses the AppSync service to assume [identity and access management]  roles  in other AWS accounts, which allows an attacker to pivot into a victim organization and access resources in those accounts," Datadog researcher Nick Frichette  said  in a report published last week. In a coordinated disclosure, Amazon  said  that no customers were affected by the vulnerability and that no customer action is required. It described it as a "case-sensitivity parsing issue w
The 5 Cornerstones for an Effective Cyber Security Awareness Training

The 5 Cornerstones for an Effective Cyber Security Awareness Training

November 28, 2022The Hacker News
It's not news that phishing attacks are getting more complex and happening more often. This year alone, APWG reported a record-breaking total of  1,097,811 phishing attacks.  These attacks continue to target organizations and individuals to gain their sensitive information.  The hard news:  they're often successful, have a long-lasting negative impact on your organization and employees, including: Loss of Money Reputation damage Loss of Intellectual property Disruptions to operational activities Negative effect on company culture The harder news:  These often could have been easily avoided. Phishing, educating your employees, and creating a cyber awareness culture? These are topics we're sensitive to and well-versed in. So, how can you effectively protect your organization against phishing attempts? These best practices will help transform your employees' behavior and build organizational resilience to phishing attacks.  Source: APWG Plan for total workforc
Over a Dozen New BMC Firmware Flaws Expose OT and IoT Devices to Remote Attacks

Over a Dozen New BMC Firmware Flaws Expose OT and IoT Devices to Remote Attacks

November 28, 2022Ravie Lakshmanan
Over a dozen security flaws have been discovered in baseboard management controller ( BMC ) firmware from Lanner that could expose operational technology (OT) and internet of things (IoT) networks to remote attacks. BMC refers to a specialized service processor, a system-on-chip (SoC), that's found in server motherboards and is used for remote monitoring and management of a host system, including performing low-level system operations such as  firmware flashing  and power control. Nozomi Networks, which analyzed an Intelligent Platform Management Interface ( IPMC ) from Taiwanese vendor Lanner Electronics, said it uncovered 13 weaknesses affecting  IAC-AST2500 . All the issues affect version 1.10.0 of the standard firmware, with the exception of CVE-2021-4228, which impacts version 1.00.0. Four of the flaws (from CVE-2021-26727 to CVE-2021-26730) are rated 10 out of 10 on the CVSS scoring system. In particular, the industrial security company found that CVE-2021-44467, an ac
Elon Musk Confirms Twitter 2.0 will Bring End-to-End Encryption to Direct Messages

Elon Musk Confirms Twitter 2.0 will Bring End-to-End Encryption to Direct Messages

November 28, 2022Ravie Lakshmanan
Twitter chief executive Elon Musk confirmed plans for end-to-end encryption ( E2EE ) for direct messages on the platform. The  feature  is part of Musk's vision for Twitter 2.0, which is expected to be what's called an "everything app." Other functionalities include longform tweets and payments, according to a slide deck shared by Musk over the weekend. The company's plans for encrypted messages first came to light in mid-November 2022, when mobile researcher Jane Manchun Wong  spotted  source code changes in Twitter's Android app referencing conversation keys for E2EE chats. It's worth noting that various other messaging platforms, such as Signal, Threema, WhatsApp, iMessage, Wire, Tox, and Keybase, already support encryption for messages. Google, which previously turned on E2EE for  one-to-one chats  in its RCS-based Messages app for Android, is currently piloting the same option for group chats. Facebook, likewise, began  enabling E2EE  on Messeng
All You Need to Know About Emotet in 2022

All You Need to Know About Emotet in 2022

November 26, 2022The Hacker News
For 6 months, the infamous Emotet botnet has shown almost no activity, and now it's distributing malicious spam. Let's dive into details and discuss all you need to know about the notorious malware to combat it. Why is everyone scared of Emotet? Emotet  is by far one of the most dangerous trojans ever created. The malware became a very destructive program as it grew in scale and sophistication. The victim can be anyone from corporate to private users exposed to spam email campaigns. The botnet distributes through phishing containing malicious Excel or Word documents. When users open these documents and enable macros, the Emotet DLL downloads and then loads into memory. It searches for email addresses and steals them for spam campaigns. Moreover, the botnet drops additional payloads, such as Cobalt Strike or other attacks that lead to ransomware. The polymorphic nature of Emotet, along with the many modules it includes, makes the malware challenging to identify. The Emotet
U.S. Bans Chinese Telecom Equipment and Surveillance Cameras Over National Security Risk

U.S. Bans Chinese Telecom Equipment and Surveillance Cameras Over National Security Risk

November 26, 2022Ravie Lakshmanan
The U.S. Federal Communications Commission (FCC) formally announced it will no longer authorize electronic equipment from Huawei, ZTE, Hytera, Hikvision, and Dahua, deeming them an "unacceptable" national security threat. All these Chinese telecom and video surveillance companies were previously included in the  Covered List  as of March 12, 2021. "The FCC is committed to protecting our national security by ensuring that untrustworthy communications equipment is not authorized for use within our borders, and we are continuing that work here," FCC Chairwoman Jessica Rosenworcel  said  in a Friday order. "These new rules are an important part of our ongoing actions to protect the American people from national security threats involving telecommunications." Pursuant to the ban, Hytera, Hikvision, and Dahua are required to document the safeguards the firms are putting in place on the sale of their devices for government use and surveillance of critical i
Russia-based RansomBoggs Ransomware Targeted Several Ukrainian Organizations

Russia-based RansomBoggs Ransomware Targeted Several Ukrainian Organizations

November 26, 2022Ravie Lakshmanan
Ukraine has come under a fresh onslaught of ransomware attacks that mirror previous intrusions attributed to the Russia-based Sandworm nation-state group. Slovak cybersecurity company ESET, which dubbed the new ransomware strain  RansomBoggs , said the attacks against several Ukrainian entities were first detected on November 21, 2022. "While the malware written in .NET is new, its deployment is similar to previous attacks attributed to Sandworm," the company  said  in a series of tweets Friday. The development comes as the Sandworm actor, tracked by Microsoft as Iridium, was implicated for a set of attacks aimed at transportation and logistics sectors in Ukraine and Poland with another ransomware strain called  Prestige  in October 2022. The RansomBoggs activity is said to employ a PowerShell script to distribute the ransomware, with the former "almost identical" to the one used in the  Industroyer2 malware  attacks that came to light in April. According to
Update Chrome Browser Now to Patch New Actively Exploited Zero-Day Flaw

Update Chrome Browser Now to Patch New Actively Exploited Zero-Day Flaw

November 25, 2022Ravie Lakshmanan
Google on Thursday released software updates to address yet another zero-day flaw in its Chrome web browser. Tracked as  CVE-2022-4135 , the high-severity vulnerability has been described as a heap buffer overflow in the GPU component. Clement Lecigne of Google's Threat Analysis Group (TAG) has been credited with reporting the flaw on November 22, 2022. Heap-based buffer overflow bugs can be  weaponized  by threat actors to crash a program or execute arbitrary code, leading to unintended behavior. According to the NIST's National Vulnerability Database, the flaw could permit a "remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page." "Google is aware that an exploit for CVE-2022-4135 exists in the wild," the tech giant  acknowledged  in an advisory. But like other actively exploited issues, technical specifics have been withheld until a majority of the users are updated with a fix and t
Dell, HP, and Lenovo Devices Found Using Outdated OpenSSL Versions

Dell, HP, and Lenovo Devices Found Using Outdated OpenSSL Versions

November 25, 2022Ravie Lakshmanan
An analysis of firmware images across devices from Dell, HP, and Lenovo has revealed the presence of outdated versions of the  OpenSSL  cryptographic library, underscoring a supply chain risk. EFI Development Kit, aka  EDK , is an open source implementation of the Unified Extensible Firmware Interface ( UEFI ), which functions as an interface between the operating system and the firmware embedded in the device's hardware. The firmware development environment, which is in its second iteration (EDK II), comes with its own cryptographic package called  CryptoPkg  that, in turn, makes use of services from the OpenSSL project. Per firmware security company Binarly, the firmware image associated with Lenovo Thinkpad enterprise devices was found to use three different versions of OpenSSL: 0.9.8zb, 1.0.0a, and 1.0.2j, the last of which was released in 2018. What's more, one of the firmware modules named InfineonTpmUpdateDxe relied on OpenSSL version 0.9.8zb that was shipped on Au
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