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The threat actor known as  Winter Vivern  has been observed exploiting a zero-day flaw in Roundcube webmail software on October 11, 2023, to harvest email messages from victims' accounts. "Winter Vivern has stepped up its operations by using a zero-day vulnerability in Roundcube," ESET security researcher Matthieu Faou  said  in a new report published today. Previously, it was using known vulnerabilities in Roundcube and Zimbra, for which proofs-of-concept are available online." Winter Vivern, also known as TA473 and UAC-0114, is an  adversarial collective  whose objectives align with that of Belarus and Russia. Over the past few months, it has been attributed to attacks against Ukraine and Poland, as well as government entities across Europe and India. The group is also assessed to have exploited another flaw Roundcube as recently as August and September (CVE-2020-35730), making it the  second nation-state group after APT28  to target the op...

Critical security flaws have been disclosed in the Open Authorization (OAuth) implementation of popular online services such as Grammarly, Vidio, and Bukalapak, building upon previous shortcomings uncovered in  Booking[.]com and Expo . The weaknesses, now addressed by the respective companies following responsible disclosure between February and April 2023, could have allowed malicious actors to obtain access tokens and potentially hijack user accounts. OAuth is a  standard  that's commonly used as a mechanism for cross-application access, granting websites or applications access to their information on other websites, such as Facebook, but without giving them the passwords. "When OAuth is used to provide service authentication, any security breach in it can lead to identity theft, financial fraud, and access to various personal information including credit card numbers, private messages, health records, and more, depending on the specific service being attacked," Sa...

In today's digital landscape, around  60%  of corporate data now resides in the cloud, with Amazon S3 standing as the backbone of data storage for many major corporations.  Despite S3 being a secure service from a reputable provider, its pivotal role in handling vast amounts of sensitive data (customer personal information, financial data, intellectual property, etc.), provides a juicy target for threat actors. It remains susceptible to ransomware attacks which are often initiated using leaked access keys that have accidentally been exposed by human error and have access to the organization's buckets. To effectively combat these evolving threats, it is vital to ensure that your organization has visibility into your S3 environment, that you are aware of how threat actors can compromise data for ransom and most importantly, best practices for minimizing the risk of cyber criminals successfully executing such an attack. Ensuring Visibility: CloudTrail and Server Access L...

VMware has released security updates to address a critical flaw in the vCenter Server that could result in remote code execution on affected systems. The issue, tracked as  CVE-2023-34048  (CVSS score: 9.8), has been described as an out-of-bounds write vulnerability in the implementation of the  DCE/RPC protocol . "A malicious actor with network access to vCenter Server may trigger an out-of-bounds write potentially leading to remote code execution," VMware  said  in an advisory published today. Credited with discovering and reporting the flaw is Grigory Dorodnov of Trend Micro Zero Day Initiative. VMware said that there are no workarounds to mitigate the shortcoming and that security updates have been made available in the following versions of the software - VMware vCenter Server 8.0 (8.0U1d or 8.0U2) VMware vCenter Server 7.0 (7.0U3o) VMware Cloud Foundation 5.x and 4.x Given the criticality of the flaw and the lack of temporary mitigations, the v...

The popularity of Brazil's  PIX  instant payment system has made it a  lucrative target for threat actors  looking to generate illicit profits using a new malware called GoPIX . Kaspersky, which has been tracking the active campaign since December 2022, said the attacks are pulled off  using malicious ads  that are served when potential victims search for "WhatsApp web" on search engines. "The cybercriminals employ malvertising: their links are placed in the ad section of the search results, so the user sees them first," the Russian cybersecurity vendor  said . "If they click such a link, a redirection follows, with the user ending up on the malware landing page." As other malvertising campaigns observed recently, users who click on the ad will be redirected via a cloaking service that is meant to filter sandboxes, bots, and others not deemed to be genuine victims. This is accomplished by using a legitimate fraud prevention solution known as ...

Virtualization services provider VMware has alerted customers to the existence of a proof-of-concept (PoC) exploit for a recently patched security flaw in Aria Operations for Logs. Tracked as CVE-2023-34051 (CVSS score: 8.1), the high-severity vulnerability relates to a case of authentication bypass that could lead to remote code execution. "An unauthenticated, malicious actor can inject files into the operating system of an impacted appliance which can result in remote code execution," VMware  noted  in an advisory on October 19, 2023. James Horseman from Horizon3.ai and the Randori Attack Team have been credited with discovering and reporting the flaw. Horizon3.ai has since made available a  PoC for the vulnerability , prompting VMware to revise its advisory this week. It's worth noting that CVE-2023-34051 is a patch bypass for a  set of critical flaws  that were addressed by VMware earlier this January that could expose users to remote code execution at...

A former employee of the U.S. National Security Agency (NSA) has pleaded guilty to charges accusing him of attempting to transmit classified defense information to Russia. Jareh Sebastian Dalke, 31, served as an Information Systems Security Designer for the NSA from June 6, 2022, to July 1, 2022, where he had Top Secret clearance to access sensitive documents. The latest development  comes more than a year  after his arrest. "Dalke admitted that between August and September 2022, in order to demonstrate both his 'legitimate access and willingness to share,' he used an encrypted email account to transmit excerpts of three classified documents to an individual he believed to be a Russian agent," the U.S. Department of Justice (DoJ)  said  in a Monday press release. In reality, the purported agent was an online covert employee working for the U.S. Federal Bureau of Investigation (FBI). Dalke, a former U.S. Army soldier, is also alleged to have requested $85,000 in ...

Spanish law enforcement officials have  announced  the arrest of 34 members of a criminal group that carried out various online scams, netting the gang about €3 million ($3.2 million) in illegal profits. Authorities conducted searches across 16 locations Madrid, Malaga, Huelva, Alicante, and Murcia, seizing two simulated firearms, a katana sword, a baseball bat, €80,000 in cash, four high-end vehicles, and computer and electronic material worth thousands of euros. The operation also uncovered a database with cross-referenced information on four million people that was collated after infiltrating databases belonging to financial and credit institutions. The scams, which were conducted via email, SMS, and phone calls, entailed the threat actors masquerading as banks and electricity supply companies to defraud victims, in some cases even perpetrating  "son in distress" calls  and manipulating delivery notes from technology firms. In one instance, the miscreants re...

While application development has evolved rapidly, the API management suites used to access these services remain a spooky reminder of a different era. Introducing new API management infrastructure with these legacy models still poses challenges for organizations as they modernize. Transitioning from monolithic architectures to agile microservices empowers developers to make quick changes. Using serverless technologies and containers enables rapid scalability. Adopting cloud-native API management further enhances developer productivity and leaves the ghosts of outdated operations behind. This blog uncovers the risks of neglecting API modernization and highlights how Gloo Gateway enhances upstream projects like Envoy with essential enterprise features like security, observability, and API controls. What's more, as a Kubernetes-native solution, Gloo Gateway seamlessly integrates with the Kubernetes API for easy deployment. Gloo Gateway adds enterprise capabilities to upstream open sou...

The TriangleDB implant used to target Apple iOS devices packs in at least four different modules to record microphone, extract iCloud Keychain, steal data from SQLite databases used by various apps, and estimate the victim's location. The new findings come from Kaspersky, which detailed the great lengths the adversary behind the campaign, dubbed  Operation Triangulation , went to conceal and cover up its tracks while clandestinely hoovering sensitive information from the compromised devices. The sophisticated attack first came to light in June 2023, when it emerged that iOS devices had been targeted by a  zero-click exploit  weaponizing then  zero-day security flaws  (CVE-2023-32434 and CVE-2023-32435) that leverages the iMessage platform to deliver a malicious attachment that can gain complete control over the devices and user data. The scale and the identity of the threat actor is presently unknown, although Kaspersky itself became one of the targets at th...

The backdoor implanted on Cisco devices by exploiting a pair of zero-day flaws in IOS XE software has been modified by the threat actor so as to escape visibility via previous fingerprinting methods. "Investigated network traffic to a compromised device has shown that the threat actor has upgraded the implant to do an extra header check," NCC Group's Fox-IT team  said . "Thus, for a lot of devices, the implant is still active, but now only responds if the correct Authorization HTTP header is set." The attacks entail fashioning  CVE-2023-20198  (CVSS score: 10.0) and  CVE-2023-20273  (CVSS score: 7.2) into an exploit chain that grants the threat actor the ability to gain access to the devices, create a privileged account, and ultimately deploy a Lua-based implant on the devices. The development comes as Cisco began rolling out security updates to  address the issues , with more updates to come at an as-yet-undisclosed date. The exact identity of the th...

Popular password management solution 1Password said it detected suspicious activity on its Okta instance on September 29 following the support system breach, but reiterated that no user data was accessed. "We immediately terminated the activity, investigated, and found no compromise of user data or other sensitive systems, either employee-facing or user-facing," Pedro Canahuati, 1Password CTO,  said  in a Monday notice. The breach is said to have occurred using a session cookie after a member of the IT team shared a HAR file with Okta Support, with the threat actor performing the below set of actions - Attempted to access the IT team member's user dashboard, but was blocked by Okta Updated an existing IDP tied to our production Google environment Activated the IDP Requested a report of administrative users The company said it was alerted to the malicious activity after the IT team member received an email about the "requested" administrative user repor...

With the record-setting growth of consumer-focused AI productivity tools like ChatGPT, artificial intelligence—formerly the realm of data science and engineering teams—has become a resource available to every employee.  From a productivity perspective, that's fantastic. Unfortunately for IT and security teams, it also means you may have hundreds of people in your organization using a new tool in a matter of days, with no visibility of what type of data they're sending to that tool or how secure it might be. And because many of these tools are free or offer free trials, there's no barrier to entry and no way of discovering them through procurement or expense reports.  Organizations need to understand and (quickly) evaluate the benefits and  risks of AI productivity tools  in order to create a scalable, enforceable, and reasonable policy to guide their employees' behavior.  How Nudge Security can help Nudge Security discovers all generative AI accounts ever c...

The threat actor known as  DoNot Team  has been linked to the use of a novel .NET-based backdoor called Firebird targeting a handful of victims in Pakistan and Afghanistan. Cybersecurity company Kaspersky, which disclosed the findings in its APT trends report Q3 2023, said the attack chains are also configured to deliver a downloader named CSVtyrei, so named for its resemblance to Vtyrei. "Some code within the examples appeared non-functional, hinting at ongoing development efforts," the Russian firm  said . Vtyrei  (aka BREEZESUGAR) refers to a first-stage payload and downloader strain previously harnessed by the adversary to deliver a malware framework known as RTY . DoNot Team, also known by the names APT-C-35, Origami Elephant, and SECTOR02, is suspected to be of Indian origin, with its attacks employing spear-phishing emails and rogue Android apps to propagate malware. The latest assessment from Kaspersky builds on an  analysis  of the threat a...

The open-source remote access trojan known as  Quasar RAT  has been observed leveraging DLL side-loading to fly under the radar and stealthily siphon data from compromised Windows hosts. "This technique capitalizes on the inherent trust these files command within the Windows environment," Uptycs researchers Tejaswini Sandapolla and Karthickkumar Kathiresan  said  in a report published last week, detailing the malware's reliance on ctfmon.exe and calc.exe as part of the attack chain. Also known by the names CinaRAT or Yggdrasil, Quasar RAT is a C#-based remote administration tool capable of gathering system information, a list of running applications, files, keystrokes, screenshots, and executing arbitrary shell commands. DLL side-loading  is a  popular   technique  adopted by  many threat actors  to execute their own payloads by planting a spoofed DLL file with a name that a benign executable is known to be looking for. "Adversarie...