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VMware Patches Important Bug Affecting ESXi, Workstation and Fusion Products

VMware Patches Important Bug Affecting ESXi, Workstation and Fusion Products

January 05, 2022Ravie Lakshmanan
VMWare has shipped updates to Workstation, Fusion, and ESXi products to address an "important" security vulnerability that could be weaponized by a threat actor to take control of affected systems. The issue relates to a heap-overflow vulnerability — tracked as  CVE-2021-22045  (CVSS score: 7.7) — that, if successfully exploited, results in the execution of arbitrary code. The company credited Jaanus Kääp, a security researcher with Clarified Security, for reporting the flaw. "A malicious actor with access to a virtual machine with CD-ROM device emulation may be able to exploit this vulnerability in conjunction with other issues to execute code on the hypervisor from a virtual machine," VMware  said  in an advisory published on January 4. "Successful exploitation requires [a] CD image to be attached to the virtual machine." The error affects ESXi versions 6.5, 6.7, and 7.0; Workstation versions 16.x; and Fusion versions 12.x, with the company yet to
Cynet's MDR Offers Organizations Continuous Security Oversight

Cynet's MDR Offers Organizations Continuous Security Oversight

December 15, 2021The Hacker News
Today's cyber attackers are constantly looking for ways to exploit vulnerabilities and infiltrate organizations. To keep up with this evolving threat landscape, security teams must be on the lookout for potential risks around the clock. Since most organizations simply cannot afford to have 24x7 security teams, managed detection and response (MDR) services have become a critical aspect of any modern security stack.  Most organizations must find outsourced MDR providers on top of their existing solutions, but that's not always a feasible solution. XDR provider Cynet offers its MDR service ( learn more here ), which the company calls CyOps, as part of its offering. The service is much more than simply a help desk, though. CyOps offers a thorough MDR service that offers both monitoring and threat hunting, as well as incident response in cases where an attack is successful.  How CyOps operates The key selling point for CyOps MDR is that it enhances organizations' security a
Update Google Chrome to Patch New Zero-Day Exploit Detected in the Wild

Update Google Chrome to Patch New Zero-Day Exploit Detected in the Wild

December 13, 2021Ravie Lakshmanan
Google has rolled out fixes for five security vulnerabilities in its Chrome web browser, including one which it says is being exploited in the wild, making it the  17th such weakness  to be disclosed since the start of the year. Tracked as  CVE-2021-4102 , the flaw relates to a  use-after-free bug  in the V8 JavaScript and WebAssembly engine, which could have severe consequences ranging from corruption of valid data to the execution of arbitrary code. An anonymous researcher has been credited with discovering and reporting the flaw. As it stands, it's not known how the weakness is being abused in real-world attacks, but the internet giant issued a terse statement that said, "it's aware of reports that an exploit for CVE-2021-4102 exists in the wild." This is done so in an attempt to ensure that a majority of users are updated with a fix and prevent further exploitation by other threat actors. CVE-2021-4102 is the second use-after-free vulnerability in V8 the comp
Latest Firefox 95 Includes RLBox Sandboxing to Protect Browser from Malicious Code

Latest Firefox 95 Includes RLBox Sandboxing to Protect Browser from Malicious Code

December 06, 2021Ravie Lakshmanan
Mozilla is beginning to roll out Firefox 95 with a new sandboxing technology called RLBox that prevents untrusted code and other security vulnerabilities from causing "accidental defects as well as supply-chain attacks." Dubbed " RLBox " and implemented in collaboration with researchers at the University of California San Diego and the University of Texas, the improved protection mechanism is designed to harden the web browser against potential weaknesses in off-the-shelf libraries used to render audio, video, fonts, images, and other content. To that end, Mozilla is incorporating "fine-grained sandboxing" into five modules, including its  Graphite  font rendering engine,  Hunspell  spell checker,  Ogg  multimedia container format,  Expat  XML parser, and  Woff2  web font compression format. The framework uses  WebAssembly , an open standard that defines a portable binary-code format for executable programs that can be run on modern web browsers, to i
CleanMyMac X: Performance and Security Software for Macbook

CleanMyMac X: Performance and Security Software for Macbook

November 29, 2021The Hacker News
We use Internet-enabled devices in every aspect of our lives today—to find information, shop, bank, do homework, play games, and keep in touch with friends and family. As a result, our devices contain much personal information about us. Also, any great device will get a little clunky and slow over time and the Mac is no exception, and the whole "Macs don't get viruses" claim is a myth. Malware for Macs has increased over the years, and today's Macs are being plagued by adware, scareware, and other potentially unwanted programs as well. If you are worried about your Macbook's performance and security, including unwanted software, ransomware,  CleanMyMac X software has you covered. CleanMyMac is all-in-all software to optimize your Mac's performance and security. It clears out clutter and removes megatons of junk so your computer can run faster, just like it did on day one. The tool is designed to replace several optimization apps for Mac and can be anythi
Bug in Popular WinRAR Software Could Let Attackers Hack Your Computer

Bug in Popular WinRAR Software Could Let Attackers Hack Your Computer

October 21, 2021Ravie Lakshmanan
A new security weakness has been disclosed in the WinRAR trialware file archiver utility for Windows that could be abused by a remote attacker to execute arbitrary code on targeted systems, underscoring how vulnerabilities in such software could beсome a gateway for a roster of attacks. Tracked as CVE-2021-35052, the bug impacts the trial version of the software running version 5.70. "This vulnerability allows an attacker to intercept and modify requests sent to the user of the application," Positive Technologies' Igor Sak-Sakovskiy  said  in a technical write-up. "This can be used to achieve remote code execution (RCE) on a victim's computer." The issue has since been addressed in WinRAR version 6.02 released on June 14, 2021. Sak-Sakovskiy noted that an investigation into WinRAR began after observing a JavaScript error rendered by MSHTML (aka Trident), a proprietary browser engine for the now-discontinued Internet Explorer and which is used in Office
Update Your Windows PCs Immediately to Patch New 0-Day Under Active Attack

Update Your Windows PCs Immediately to Patch New 0-Day Under Active Attack

October 12, 2021Ravie Lakshmanan
Microsoft on Tuesday rolled out  security patches  to contain a total of 71 vulnerabilities in Microsoft Windows and other software, including a fix for an actively exploited privilege escalation vulnerability that could be exploited in conjunction with remote code execution bugs to take control over vulnerable systems. Two of the addressed security flaws are rated Critical, 68 are rated Important, and one is rated Low in severity, with three of the issues listed as publicly known at the time of the release. The four zero-days are as follows — CVE-2021-40449  (CVSS score: 7.8) - Win32k Elevation of Privilege Vulnerability CVE-2021-41335  (CVSS score: 7.8) - Windows Kernel Elevation of Privilege Vulnerability CVE-2021-40469  (CVSS score: 7.2) - Windows DNS Server Remote Code Execution Vulnerability CVE-2021-41338  (CVSS score: 5.5) - Windows AppContainer Firewall Rules Security Feature Bypass Vulnerability At the top of the list is CVE-2021-40449, a use-after-free vulnerability
Digital Signature Spoofing Flaws Uncovered in OpenOffice and LibreOffice

Digital Signature Spoofing Flaws Uncovered in OpenOffice and LibreOffice

October 12, 2021Ravie Lakshmanan
The maintainers of LibreOffice and OpenOffice have shipped security updates to their productivity software to remediate multiple vulnerabilities that could be weaponized by malicious actors to alter documents to make them appear as if they are digitally signed by a trusted source. The list of the three flaws is as follows — CVE-2021-41830  /  CVE-2021-25633  - Content and Macro Manipulation with Double Certificate Attack CVE-2021-41831  /  CVE-2021-25634  - Timestamp Manipulation with Signature Wrapping CVE-2021-41832  /  CVE-2021-25635  - Content Manipulation with Certificate Validation Attack Successful exploitation of the vulnerabilities could permit an attacker to  manipulate the timestamp  of signed ODF documents, and worse,  alter the contents  of a document or  self-sign a document  with an untrusted signature, which is then tweaked to change the  signature algorithm  to an invalid or unknown algorithm.  In both the latter two attack scenarios — stemming as a result o
Cisco Releases Patches 3 New Critical Flaws Affecting IOS XE Software

Cisco Releases Patches 3 New Critical Flaws Affecting IOS XE Software

September 24, 2021Ravie Lakshmanan
Networking equipment maker Cisco Systems has rolled out patches to address three critical security vulnerabilities in its IOS XE network operating system that remote attackers could potentially abuse to execute arbitrary code with administrative privileges and trigger a denial-of-service (DoS) condition on vulnerable devices. The list of three flaws is as follows - CVE-2021-34770  (CVSS score: 10.0) - Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Remote Code Execution Vulnerability CVE-2021-34727  (CVSS score: 9.8) - Cisco IOS XE SD-WAN Software Buffer Overflow Vulnerability CVE-2021-1619  (CVSS score: 9.8) - Cisco IOS XE Software NETCONF and RESTCONF Authentication Bypass Vulnerability The most severe of the issues is CVE-2021-34770, which Cisco calls a "logic error" that occurs during the processing of  CAPWAP  (Control And Provisioning of Wireless Access Points) packets that enable a central wireless Controller to manage a group of wire
Download the Essential Guide to Response Automation

Download the Essential Guide to Response Automation

September 15, 2021The Hacker News
In the classic children's movie 'The Princess Bride,' one of the characters utters the phrase, " You keep using that word. I do not think it means what you think it means ." It's freely used as a response to someone's misuse or misunderstanding of a word or phrase. "Response Automation" is another one of those phrases that have different meanings to different people. It's bantered around by the security vendor community so much that its precise meaning, when used, is unclear. Many vendors throw the term out without explaining exactly what they mean by the phrase. One vendor's response automation might, and often do, perform very differently from another vendor's response automation capabilities. But, hey, they have "response automation!" A recently published guide is meant to make sense of Response Automation ( Download here ). It discusses the evolution of response automation and distinguishes five increasingly capabl
Critical Flaw Discovered in Cisco APIC for Switches — Patch Released

Critical Flaw Discovered in Cisco APIC for Switches — Patch Released

August 25, 2021Ravie Lakshmanan
Cisco Systems on Wednesday issued patches to address a critical security vulnerability affecting the Application Policy Infrastructure Controller (APIC) interface used in its Nexus 9000 Series Switches that could be potentially abused to read or write arbitrary files on a vulnerable system. Tracked as  CVE-2021-1577  (CVSS score: 9.1), the issue — which is due to improper access control — could enable an unauthenticated, remote attacker to upload a file to the appliances. " A successful exploit could allow the attacker to read or write arbitrary files on an affected device," the company  said  in an advisory. The APIC appliance is a centralized, clustered controller that programmatically automates network provisioning and control based on the application requirements and policies across physical and virtual environments. Cisco said it discovered the vulnerability during internal security testing by the Cisco Advanced Security Initiatives Group (ASIG). Additionally, the
BadAlloc Flaw Affects BlackBerry QNX Used in Millions of Cars and Medical Devices

BadAlloc Flaw Affects BlackBerry QNX Used in Millions of Cars and Medical Devices

August 18, 2021Ravie Lakshmanan
A major vulnerability affecting older versions of BlackBerry's QNX Real-Time Operating System (RTOS) could allow malicious actors to cripple and gain control of a variety of products, including cars, medical, and industrial equipment. The shortcoming (CVE-2021-22156, CVSS score: 9.0) is part of a broader collection of flaws, collectively dubbed  BadAlloc , that was originally disclosed by Microsoft in April 2021, which could open a backdoor into many of these devices, allowing attackers to commandeer them or disrupt their operations. "A remote attacker could exploit CVE-2021-22156 to cause a denial-of-service condition or execute arbitrary code on affected devices," the U.S. Cybersecurity and Infrastructure Security Agency (CISA)  said  in a Tuesday bulletin. As of writing, there is no evidence of active exploitation of the vulnerability. BlackBerry QNX technology is  used  worldwide by over 195 million vehicles and embedded systems across a wide range of industries,
Several Malicious Typosquatted Python Libraries Found On PyPI Repository

Several Malicious Typosquatted Python Libraries Found On PyPI Repository

July 30, 2021Ravie Lakshmanan
As many as eight Python packages that were downloaded more than 30,000 times have been removed from the PyPI portal for containing malicious code, once again highlighting how software package repositories are evolving into a popular target for supply chain attacks. "Lack of moderation and automated security controls in public software repositories allow even inexperienced attackers to use them as a platform to spread malware, whether through typosquatting, dependency confusion, or simple social engineering attacks," JFrog researchers Andrey Polkovnichenko, Omer Kaspi, and Shachar Menashe  said  Thursday. PyPI, short for Python Package Index, is the official third-party software repository for Python, with package manager utilities like  pip  relying on it as the default source for packages and their dependencies. The Python packages in question, which were found to be obfuscated using Base64 encoding, are listed below - pytagora (uploaded by leonora123) pytagora2 (upl
Critical Flaws Reported in Sage X3 Enterprise Management Software

Critical Flaws Reported in Sage X3 Enterprise Management Software

July 08, 2021Ravie Lakshmanan
Four security vulnerabilities have been uncovered in the  Sage X3  enterprise resource planning (ERP) product, two of which could be chained together as part of an attack sequence to enable adversaries to execute malicious commands and take control of vulnerable systems. These issues were discovered by researchers from Rapid7, who notified Sage Group of their findings on Feb. 3, 2021. The vendor has since rolled out  fixes  in recent releases for Sage X3 Version 9 (Syracuse 9.22.7.2), Sage X3 HR & Payroll Version 9 (Syracuse 9.24.1.3), Sage X3 Version 11 (Syracuse 11.25.2.6), and Sage X3 Version 12 (Syracuse 12.10.2.8) that were shipped in March. The list of vulnerabilities is as follows - CVE-2020-7388  (CVSS score: 10.0) - Sage X3 Unauthenticated Remote Command Execution (RCE) as SYSTEM in AdxDSrv.exe component CVE-2020-7389  (CVSS score" 5.5) - System "CHAINE" Variable Script Command Injection (No fix planned) CVE-2020-7387  (CVSS score: 5.3) - Sage X3 Ins
Dozens of Vulnerable NuGet Packages Allow Attackers to Target .NET Platform

Dozens of Vulnerable NuGet Packages Allow Attackers to Target .NET Platform

July 07, 2021Ravie Lakshmanan
An analysis of off-the-shelf packages hosted on the NuGet repository has revealed 51 unique software components to be vulnerable to actively exploited, high-severity vulnerabilities, once again underscoring the threat posed by third-party dependencies to the software development process. In light of the growing number of cyber incidents that target the software supply chain, there is an urgent need to assess such third-party modules for any security risks and minimize the attack surface, ReversingLabs researcher Karlo Zanki said in a report shared with The Hacker News. NuGet  is a Microsoft-supported mechanism for the .NET platform and functions as a package manager designed to enable developers to share reusable code. The framework maintains a central repository of over 264,000 unique packages that have collectively produced more than 109 billion package downloads. "All identified precompiled software components in our research were different versions of 7Zip, WinSCP and PuT
10 Critical Flaws Found in CODESYS Industrial Automation Software

10 Critical Flaws Found in CODESYS Industrial Automation Software

June 04, 2021Ravie Lakshmanan
Cybersecurity researchers on Thursday disclosed as many as ten critical vulnerabilities impacting CODESYS automation software that could be exploited to achieve remote code execution on programmable logic controllers (PLCs). "To exploit the vulnerabilities, an attacker does not need a username or password; having network access to the industrial controller is enough," researchers from Positive Technologies  said . "The main cause of the vulnerabilities is insufficient verification of input data, which may itself be caused by failure to comply with the secure development recommendations." The Russian cybersecurity firm noted that it detected the vulnerabilities on a PLC offered by WAGO, which, among other automation technology companies such as Beckhoff, Kontron, Moeller, Festo, Mitsubishi, and HollySys, use CODESYS software for  programming and configuring  the controllers. CODESYS offers a development environment for programming controller applications for use
Details Disclosed On Critical Flaws Affecting Nagios IT Monitoring Software

Details Disclosed On Critical Flaws Affecting Nagios IT Monitoring Software

May 24, 2021Ravie Lakshmanan
Cybersecurity researchers disclosed details about 13 vulnerabilities in the Nagios network monitoring application that could be abused by an adversary to hijack the infrastructure without any operator intervention. "In a telco setting, where a telco is monitoring thousands of sites, if a customer site is fully compromised, an attacker can use the vulnerabilities to compromise the telco, and then every other monitored customer site," Adi Ashkenazy, CEO of Australian cybersecurity firm Skylight Cyber, told The Hacker News via email. Nagios is an open-source IT infrastructure tool analogous to SolarWinds Network Performance Monitor (NPM) that offers monitoring and alerting services for servers, network cards, applications, and services. The issues, which consist of a mix of authenticated remote code execution (RCE) and privilege escalation flaws, were discovered and reported to Nagios in October 2020, following which they were  remediated  in  November . Chief among them i
How to Conduct Vulnerability Assessments: An Essential Guide for 2021

How to Conduct Vulnerability Assessments: An Essential Guide for 2021

April 29, 2021The Hacker News
Hackers are scanning the internet for weaknesses all the time, and if you don't want your organization to fall victim, you need to be the first to find these weak spots. In other words, you have to adopt a proactive approach to managing your vulnerabilities, and a crucial first step in achieving this is performing a vulnerability assessment. Read this guide to learn how to perform vulnerability assessments in your organization and stay ahead of the hackers. Vulnerability assessment tools Vulnerability assessments are automated processes performed by scanners. This makes them accessible to a wide audience. Many of the scanners are geared towards cybersecurity experts, but there are solutions tailored for IT managers and developers in organizations without dedicated security teams.  Vulnerability scanners come in various types: some excel at network scanning, others at web applications, IoT devices, or container security. If you're a small business, you're likely to find
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