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À partir d’avant-hierThe Hacker News

New Syslogk Linux Rootkit Lets Attackers Remotely Command It Using "Magic Packets"

A new covert Linux kernel rootkit named Syslogk has been spotted under development in the wild and cloaking a malicious payload that can be remotely commandeered by an adversary using a magic network traffic packet. "The Syslogk rootkit is heavily based on Adore-Ng but incorporates new functionalities making the user-mode application and the kernel rootkit hard to detect," Avast security

Unpatched Travis CI API Bug Exposes Thousands of Secret User Access Tokens

An unpatched security issue in the Travis CI API has left tens of thousands of developers' user tokens exposed to potential attacks, effectively allowing threat actors to breach cloud infrastructures, make unauthorized code changes, and initiate supply chain attacks. "More than 770 million logs of free tier users are available, from which you can easily extract tokens, secrets, and other

Technical Details Released for 'SynLapse' RCE Vulnerability Reported in Microsoft Azure

Microsoft has incorporated additional improvements to address the recently disclosed SynLapse security vulnerability in order to meet comprehensive tenant isolation requirements in Azure Data Factory and Azure Synapse Pipelines. The latest safeguards include moving the shared integration runtimes to sandboxed ephemeral instances and using scoped tokens to prevent adversaries from using a client

What is the Essential Eight (And Why Non-Aussies Should Care)

In 2017, The Australian Cyber Security Center (ACSC) published a set of mitigation strategies that were designed to help organizations to protect themselves against cyber security incidents. These strategies, which became known as the Essential Eight, are designed specifically for use on Windows networks, although variations of these strategies are commonly applied to other platforms. What is

New Zimbra Email Vulnerability Could Let Attackers Steal Your Login Credentials

A new high-severity vulnerability has been disclosed in the Zimbra email suite that, if successfully exploited, enables an unauthenticated attacker to steal cleartext passwords of users sans any user interaction. "With the consequent access to the victims' mailboxes, attackers can potentially escalate their access to targeted organizations and gain access to various internal services and steal

Patch Tuesday: Microsoft Issues Fix for Actively Exploited 'Follina' Vulnerability

Microsoft finally released fixes to address an actively exploited Windows zero-day vulnerability known as Follina as part of its Patch Tuesday updates. Also addressed by the tech giant are 55 other flaws, three of which are rated Critical, 51 are rated Important, and one is rated Moderate in severity. Separately, five more shortcomings were resolved in the Microsoft Edge browser. <!--adsense-->

Cloudflare Saw Record-Breaking DDoS Attack Peaking at 26 Million Request Per Second

Cloudflare on Tuesday disclosed that it had acted to prevent a record-setting 26 million request per second (RPS) distributed denial-of-service (DDoS) attack last week, making it the largest HTTPS DDoS attack detected to date. The web performance and security company said the attack was directed against an unnamed customer website using its Free plan and emanated from a "powerful" botnet of

New Hertzbleed Side Channel Attack Affects All Modern AMD and Intel CPUs

A newly discovered security vulnerability in modern Intel and AMD processors could let remote attackers steal encryption keys via a power side channel attack. Dubbed Hertzbleed by a group of researchers from the University of Texas, the University of Illinois Urbana-Champaign, and the University of Washington, the issue is rooted in dynamic voltage and frequency scaling (DVFS), a power and

Comprehensive, Easy Cybersecurity for Lean IT Security Teams Starts with XDR

Breaches don't just happen to large enterprises. Threat actors are increasingly targeting small businesses. In fact, 43% of data breaches involved small to medium-sized businesses. But there is a glaring discrepancy. Larger businesses typically have the budget to keep their lights on if they are breached. Most small businesses (83%), however, don't have the financial resources to recover if they

Panchan: A New Golang-based Peer-To-Peer Botnet Targeting Linux Servers

A new Golang-based peer-to-peer (P2P) botnet has been spotted actively targeting Linux servers in the education sector since its emergence in March 2022. Dubbed Panchan by Akamai Security Research, the malware "utilizes its built-in concurrency features to maximize spreadability and execute malware modules" and "harvests SSH keys to perform lateral movement." <!--adsense--> The feature-packed

Critical Flaw in Cisco Secure Email and Web Manager Lets Attackers Bypass Authentication

Cisco on Wednesday rolled out fixes to address a critical security flaw affecting Email Security Appliance (ESA) and Secure Email and Web Manager that could be exploited by an unauthenticated, remote attacker to sidestep authentication. Assigned the CVE identifier CVE-2022-20798, the bypass vulnerability is rated 9.8 out of a maximum of 10 on the CVSS scoring system and stems from improper

MaliBot: A New Android Banking Trojan Spotted in the Wild

A new strain of Android malware has been spotted in the wild targeting online banking and cryptocurrency wallet customers in Spain and Italy, just weeks after a coordinated law enforcement operation dismantled FluBot. The information stealing trojan, codenamed MaliBot by F5 Labs, is as feature-rich as its counterparts, allowing it to steal credentials and cookies, bypass multi-factor

High-Severity RCE Vulnerability Reported in Popular Fastjson Library

Cybersecurity researchers have detailed a recently patched high-severity security vulnerability in the popular Fastjson library that could be potentially exploited to achieve remote code execution. Tracked as CVE-2022-25845 (CVSS score: 8.1), the issue relates to a case of deserialization of untrusted data in a supported feature called "AutoType." It was patched by the project maintainers in 

A Microsoft Office 365 Feature Could Help Ransomware Hackers Hold Cloud Files Hostage

A "dangerous piece of functionality" has been discovered in Microsoft 365 suite that could be potentially abused by a malicious actor to mount attacks on cloud infrastructure and ransom files stored on SharePoint and OneDrive. The cloud ransomware attack makes it possible to launch file-encrypting malware to "encrypt files stored on SharePoint and OneDrive in a way that makes them unrecoverable

Difference Between Agent-Based and Network-Based Internal Vulnerability Scanning

For years, the two most popular methods for internal scanning: agent-based and network-based were considered to be about equal in value, each bringing its own strengths to bear. However, with remote working now the norm in most if not all workplaces, it feels a lot more like agent-based scanning is a must, while network-based scanning is an optional extra. This article will go in-depth on the

BlackCat Ransomware Gang Targeting Unpatched Microsoft Exchange Servers

Microsoft is warning that the BlackCat ransomware crew is leveraging exploits for unpatched Exchange server vulnerabilities to gain access to targeted networks. Upon gaining an entry point, the attackers swiftly moved to gather information about the compromised machines, followed by carrying out credential theft and lateral movement activities, before harvesting intellectual property and

Over a Million WordPress Sites Forcibly Updated to Patch a Critical Plugin Vulnerability

WordPress websites using a widely used plugin named Ninja Forms have been updated automatically to remediate a critical security vulnerability that's suspected of having been actively exploited in the wild. The issue, which relates to a case of code injection, is rated 9.8 out of 10 for severity and affects multiple versions starting from 3.0. It has been fixed in 3.0.34.2, 3.1.10, 3.2.28,

Chinese Hackers Exploited Sophos Firewall Zero-Day Flaw to Target South Asian Entity

A sophisticated Chinese advanced persistent threat (APT) actor exploited a critical security vulnerability in Sophos' firewall product that came to light earlier this year to infiltrate an unnamed South Asian target as part of a highly-targeted attack. "The attacker implement[ed] an interesting web shell backdoor, create[d] a secondary form of persistence, and ultimately launch[ed] attacks

Researchers Uncover 'Hermit' Android Spyware Used in Kazakhstan, Syria, and Italy

An enterprise-grade surveillanceware dubbed Hermit has been put to use by entities operating from within Kazakhstan, Syria, and Italy over the years since 2019, new research has revealed. Lookout attributed the spy software, which is equipped to target both Android and iOS, to an Italian company named RCS Lab S.p.A and Tykelab Srl, a telecom services provider which it suspects to be a front
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