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New research has found that artificial intelligence (AI)-as-a-service providers such as Hugging Face are susceptible to two critical risks that could allow threat actors to escalate privileges, gain cross-tenant access to other customers' models, and even take over the continuous integration and continuous deployment (CI/CD) pipelines. "Malicious models represent a major risk to AI systems, especially for AI-as-a-service providers because potential attackers may leverage these models to perform cross-tenant attacks," Wiz researchers Shir Tamari and Sagi Tzadik  said . "The potential impact is devastating, as attackers may be able to access the millions of private AI models and apps stored within AI-as-a-service providers." The development comes as machine learning pipelines have emerged as a brand new supply chain attack vector, with repositories like Hugging Face becoming an attractive target for staging adversarial attacks designed to glean sensitive infor...

Bogus installers for Adobe Acrobat Reader are being used to  distribute  a new multi-functional malware dubbed  Byakugan . The starting point of the attack is a PDF file written in Portuguese that, when opened, shows a blurred image and asks the victim to click on a link to download the Reader application to view the content. According to Fortinet FortiGuard Labs, clicking the URL leads to the delivery of an installer ("Reader_Install_Setup.exe") that activates the infection sequence. Details of the campaign were  first disclosed  by the AhnLab Security Intelligence Center (ASEC) last month. The attack chain leverages techniques like DLL hijacking and Windows User Access Control (UAC) bypass to load a malicious dynamic-link library (DLL) file named "BluetoothDiagnosticUtil.dll," which, in turn, loads unleashes the final payload. It also deploys a legitimate installer for a PDF reader like Wondershare PDFelement. The binary is equipped to gather and exfiltra...

Financial organizations in the Asia-Pacific (APAC) and Middle East and North Africa (MENA) are being targeted by a new version of an "evolving threat" called  JSOutProx . "JSOutProx is a sophisticated attack framework utilizing both JavaScript and .NET," Resecurity  said  in a technical report published this week. "It employs the .NET (de)serialization feature to interact with a core JavaScript module running on the victim's machine. Once executed, the malware enables the framework to load various plugins, which conduct additional malicious activities on the target." First  identified  in December 2019 by Yoroi, early attacks distributing JSOutProx have been attributed to a threat actor tracked as  Solar Spider . The cyber crime actors behind the malware have a track record of striking banks and other big companies in Asia and Europe. In late 2021, Quick Heal Security Labs  detailed  attacks leveraging the remote access trojan (RAT) to single...

I had the honor of hosting the first episode of the Xposure Podcast live from Xposure Summit 2025. And I couldn't have asked for a better kickoff panel: three cybersecurity leaders who don't just talk security, they live it. Let me introduce them. Alex Delay , CISO at IDB Bank, knows what it means to defend a highly regulated environment. Ben Mead , Director of Cybersecurity at Avidity Biosciences, brings a forward-thinking security perspective that reflects the innovation behind Avidity's targeted RNA therapeutics. Last but not least, Michael Francess , Director of Cybersecurity Advanced Threat at Wyndham Hotels and Resorts, leads the charge in protecting the franchise. Each brought a unique vantage point to a common challenge: applying Continuous Threat Exposure Management (CTEM) to complex production environments. Gartner made waves in 2023 with a bold prediction: organizations that prioritize CTEM will be three times less likely to be breached by 2026. But here's the kicker -...

Multiple China-nexus threat actors have been linked to the zero-day exploitation of three security flaws impacting Ivanti appliances (CVE-2023-46805, CVE-2024-21887, and CVE-2024-21893). The clusters are being tracked by Mandiant under the uncategorized monikers  UNC5221 , UNC5266, UNC5291,  UNC5325 , UNC5330, and UNC5337. Also previously linked to the exploitation spree is a Chinese hacking crew called UNC3886 , whose tradecraft is notable for weaponizing zero-day bugs in Fortinet and VMware to breach target networks. The Google Cloud subsidiary said it has also observed financially motivated actors exploiting CVE-2023-46805 and CVE-2024-21887, likely in an attempt to conduct cryptocurrency mining operations. "UNC5266 overlaps in part with UNC3569, a China-nexus espionage actor that has been observed exploiting vulnerabilities in Aspera Faspex, Microsoft Exchange, and Oracle Web Applications Desktop Integrator, among others, to gain initial access to target environments,...

A suspected Vietnamese-origin threat actor has been observed targeting victims in several Asian and Southeast Asian countries with malware designed to harvest valuable data since at least May 2023. Cisco Talos is tracking the cluster under the name  CoralRaider , describing it as financially motivated. Targets of the campaign include India, China, South Korea, Bangladesh, Pakistan, Indonesia, and Vietnam. "This group focuses on stealing victims' credentials, financial data, and social media accounts, including business and advertisement accounts," security researchers Chetan Raghuprasad and Joey Chen  said . "They use RotBot, a customized variant of Quasar RAT, and XClient stealer as payloads." Other commodity malware used by the group comprises a combination of remote access trojans and information stealers such as  AsyncRAT ,  NetSupport RAT , and Rhadamanthys . The targeting of business and advertisement accounts has been of particular focus for attacke...

An updated version of an information-stealing malware called Rhadamanthys is being used in phishing campaigns targeting the oil and gas sector. "The phishing emails use a unique vehicle incident lure and, in later stages of the infection chain, spoof the Federal Bureau of Transportation in a PDF that mentions a significant fine for the incident," Cofense researcher Dylan Duncan  said . The email message comes with a malicious link that leverages an open redirect flaw to take the recipients to a link hosting a supposed PDF document, but, in reality, is an image that, upon clicking, downloads a ZIP archive with the stealer payload. Written in C++,  Rhadamanthys  is designed to establish connections with a command-and-control (C2) server in order to harvest sensitive data from the compromised hosts. "This campaign appeared within days of the law enforcement takedown of the LockBit ransomware group," Duncan said. "While this could be a coincidence, Trend Micr...

New research has found that the CONTINUATION frame in the HTTP/2 protocol can be exploited to conduct denial-of-service (DoS) attacks. The technique has been codenamed  HTTP/2 CONTINUATION Flood  by security researcher Bartek Nowotarski, who reported the issue to the CERT Coordination Center (CERT/CC) on January 25, 2024. "Many HTTP/2 implementations do not properly limit or sanitize the amount of CONTINUATION frames sent within a single stream," CERT/CC  said  in an advisory on April 3, 2024. "An attacker that can send packets to a target server can send a stream of CONTINUATION frames that will not be appended to the header list in memory but will still be processed and decoded by the server or will be appended to the header list, causing an out of memory (OOM) crash." Like in HTTP/1, HTTP/2 uses header fields within requests and responses. These  header fields  can comprise header lists, which in turn, are serialized and broken into  header blo...

Ivanti has released security updates to address four security flaws impacting Connect Secure and Policy Secure Gateways that could result in code execution and denial-of-service (DoS). The list of flaws is as follows - CVE-2024-21894  (CVSS score: 8.2) - A heap overflow vulnerability in the IPSec component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure allows an unauthenticated malicious user to send specially crafted requests in order to crash the service thereby causing a DoS attack. In certain conditions, this may lead to execution of arbitrary code. CVE-2024-22052  (CVSS score: 7.5) - A null pointer dereference vulnerability in IPSec component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure allows an unauthenticated malicious user to send specially crafted requests in order to crash the service thereby causing a DoS attack. CVE-2024-22053  (CVSS score: 8.2) - A heap overflow vulnerability in the IPSec component of Ivanti Connect ...

Google has disclosed that two Android security flaws impacting its Pixel smartphones have been exploited in the wild by forensic companies. The high-severity zero-day vulnerabilities are as follows - CVE-2024-29745  - An information disclosure flaw in the bootloader component CVE-2024-29748  - A privilege escalation flaw in the firmware component "There are indications that the [vulnerabilities] may be under limited, targeted exploitation," Google  said  in an advisory published April 2, 2024. While the tech giant did not reveal any other information about the nature of the attacks exploiting these shortcomings, the maintainers of GrapheneOS said they "are being actively exploited in the wild by forensic companies." "CVE-2024-29745 refers to a vulnerability in the fastboot firmware used to support unlocking/flashing/locking," they  said  in a series of posts on X (formerly Twitter). "Forensic companies are rebooting devices in After First U...

The U.S. Cyber Safety Review Board ( CSRB ) has criticized Microsoft for a series of security lapses that led to the breach of nearly two dozen companies across Europe and the U.S. by a China-based nation-state group called Storm-0558 last year. The findings, released by the Department of Homeland Security (DHS) on Tuesday, found that the intrusion was preventable, and that it became successful due to a "cascade of Microsoft's avoidable errors." "It identified a series of Microsoft operational and strategic decisions that collectively pointed to a corporate culture that deprioritized enterprise security investments and rigorous risk management, at odds with the company's centrality in the technology ecosystem and the level of trust customers place in the company to protect their data and operations," the DHS  said  in a statement. The CSRB also lambasted the tech titan for failing to detect the compromise on its own, instead relying on a customer to reac...

Google on Tuesday said it's piloting a new feature in Chrome called Device Bound Session Credentials ( DBSC ) to help protect users against session cookie theft by malware. The prototype – currently tested against "some" Google Account users running Chrome Beta – is built with an aim to make it an open web standard, the tech giant's Chromium team said. "By binding authentication sessions to the device, DBSC aims to disrupt the cookie theft industry since exfiltrating these cookies will no longer have any value," the company  noted . "We think this will substantially reduce the success rate of cookie theft malware. Attackers would be forced to act locally on the device, which makes on-device detection and cleanup more effective, both for anti-virus software as well as for enterprise managed devices." The development comes on the back of reports that off-the-shelf information stealing malware are finding ways to steal cookies in a manner that al...

Attack surface management (ASM) and vulnerability management (VM) are often confused, and while they overlap, they're not the same. The main difference between attack surface management and vulnerability management is in their scope: vulnerability management checks a list of known assets, while attack surface management assumes you have unknown assets and so begins with discovery. Let's look at both in more detail. What is vulnerability management? Vulnerability management is, at the simplest level, the use of automated tools to identify, prioritize and report on security issues and vulnerabilities in your digital infrastructure. Vulnerability management uses automated scanners to run regular, scheduled scans on assets within a known IP range to detect established and new vulnerabilities, so you can apply patches, remove vulnerabilities or mitigate any potential risks. These vulnerabilities tend to use a risk score or scale – such as CVSS – and risk calculations. Vulnerability sca...