Cyber Security

Security researchers Thursday disclosed a new critical vulnerability affecting Domain Name System (DNS) resolvers that could be exploited by adversaries to carry out reflection-based denial-of-service attacks against authoritative nameservers. The flaw, called ‘TsuNAME,’ was discovered by researchers from SIDN Labs and InternetNZ, which manage the national top-level internet domains ‘.nl’ and ‘.nz’ for the Netherlands
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Google has announced a number of user-facing and under-the-hood changes in an attempt to boost privacy and security, including rolling out two-factor authentication automatically to all eligible users and bringing iOS-styled privacy labels to Android app listings. “Today we ask people who have enrolled in two-step verification (2SV) to confirm it’s really them with a
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As many as six zero-days have been uncovered in an application called Remote Mouse, allowing a remote attacker to achieve full code execution without any user interaction. The unpatched flaws, collectively named ‘Mouse Trap,‘ were disclosed on Wednesday by security researcher Axel Persinger, who said, “It’s clear that this application is very vulnerable and puts
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Cybersecurity researchers have disclosed a new security vulnerability in Qualcomm’s mobile station modems (MSM) that could potentially allow an attacker to leverage the underlying Android operating system to slip malicious code into mobile phones, undetected. “If exploited, the vulnerability would have allowed an attacker to use Android OS itself as an entry point to inject
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The maintainers of Exim have released patches to remediate as many as 21 security vulnerabilities in its software that could enable unauthenticated attackers to achieve complete remote code execution and gain root privileges. Collectively named ’21Nails,’ the flaws include 11 vulnerabilities that require local access to the server and 10 other weaknesses that could be
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PC maker Dell has issued an update to fix multiple critical privilege escalation vulnerabilities that went undetected since 2009, potentially allowing attackers to gain kernel-mode privileges and cause a denial-of-service condition. The issues, reported to Dell by researchers from SentinelOne on Dec. 1, 2020, reside in a firmware update driver named “dbutil_2_3.sys” that comes pre-installed
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Ask the average helpdesk technician what they do all day, and they will probably answer by saying that they reset passwords. Sure, helpdesk technicians do plenty of other things too, but in many organizations, a disproportionate number of helpdesk calls are tied to password resets. On the surface, having a helpdesk technician reset a user’s
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Researchers on Tuesday disclosed a novel malware that uses a variety of tricks to stay under the radar and evade detection, while stealthily capable of executing arbitrary commands on infected systems. Called ‘Pingback,’ the Windows malware leverages Internet Control Message Protocol (ICMP) tunneling for covert bot communications, allowing the adversary to utilize ICMP packets to
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Cybersecurity researchers on Monday disclosed a new malspam campaign distributing a fresh variant of a malware loader called ‘Buer’ written in Rust, illustrating how adversaries are constantly honing their malware toolsets to evade analysis. Dubbed “RustyBuer,” the malware is distributed via emails masquerading as shipping notices from DHL Support, and is said to have affected
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A previously undocumented Linux malware with backdoor capabilities has managed to stay under the radar for about three years, allowing the threat actor behind to harvest and exfiltrate sensitive information from infected systems. Dubbed “RotaJakiro” by researchers from Qihoo 360 NETLAB, the backdoor targets Linux X64 machines, and is so named after the fact that
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Click Studios, the Australian software firm which confirmed a supply chain attack affecting its Passwordstate password management application, has warned customers of an ongoing phishing attack by an unknown threat actor. “We have been advised a bad actor has commenced a phishing attack with a small number of customers having received emails requesting urgent action,”
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An “aggressive” financially motivated threat group tapped into a zero-day flaw in SonicWall VPN appliances prior to it being patched by the company to deploy a new strain of ransomware called FIVEHANDS. The group, tracked by cybersecurity firm Mandiant as UNC2447, took advantage of an “improper SQL command neutralization” flaw in the SSL-VPN SMA100 product
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Microsoft researchers on Thursday disclosed two dozen vulnerabilities affecting a wide range of Internet of Things (IoT) and Operational Technology (OT) devices used in industrial, medical, and enterprise networks that could be abused by adversaries to execute arbitrary code and even cause critical systems to crash. “These remote code execution (RCE) vulnerabilities cover more than
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The maintainers of Composer, a package manager for PHP, have shipped an update to address a critical vulnerability that could have allowed an attacker to execute arbitrary commands and “backdoor every PHP package,” resulting in a supply-chain attack. Tracked as CVE-2021-29472, the security issue was discovered and reported on April 22 by researchers from SonarSource,
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Cybersecurity researchers on Wednesday exposed a new cyberespionage campaign targeting military organizations in Southeast Asia. Attributing the attacks to a threat actor dubbed “Naikon APT,” cybersecurity firm Bitdefender laid out the ever-changing tactics, techniques, and procedures adopted by the group, including weaving new backdoors named “Nebulae” and “RainyDay” into their data-stealing missions. The malicious activity
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Cybersecurity researchers on Wednesday disclosed a new bypass vulnerability (CVE-2021-23008) in the Kerberos Key Distribution Center (KDC) security feature impacting F5 Big-IP application delivery services. “The KDC Spoofing vulnerability allows an attacker to bypass the Kerberos authentication to Big-IP Access Policy Manager (APM), bypass security policies and gain unfettered access to sensitive workloads,” Silverfort researchers
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Attention, Android users! A banking malware capable of stealing sensitive information is “spreading rapidly” across Europe, with the U.S. likely to be the next target. According to a new analysis by Proofpoint, the threat actors behind FluBot (aka Cabassous) have branched out beyond Spain to target the U.K., Germany, Hungary, Italy, and Poland. The English-language
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The U.S. Cybersecurity and Infrastructure Security Agency (CISA), Department of Homeland Security (DHS), and the Federal Bureau of Investigation (FBI) on Monday published a new joint advisory as part of their latest attempts to expose the tactics, techniques, and procedures (TTPs) adopted by the Russian Foreign Intelligence Service (SVR) in its attacks targeting the U.S
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