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SonicWall Left a VPN Flaw Partially Unpatched Amidst 0-Day Attacks

SonicWall Left a VPN Flaw Partially Unpatched Amidst 0-Day Attacks

June 22, 2021Ravie Lakshmanan
A critical vulnerability in SonicWall VPN appliances that was believed to have been patched last year has been now found to be "botched," with the company leaving a memory leak flaw unaddressed, until now, that could permit a remote attacker to gain access to sensitive information. The shortcoming was rectified in an update rolled out to SonicOS on June 22.  Tracked as  CVE-2021-20019  (CVSS score: 5.3), the vulnerability is the consequence of a memory leak when sending a specially-crafted unauthenticated HTTP request, culminating in information disclosure. It's worth noting that SonicWall's decision to hold back the patch comes amid  multiple   zero-day   disclosures  affecting its remote access VPN and email security products that have been exploited in a series of in-the-wild attacks to deploy backdoors and a new strain of ransomware called FIVEHANDS. Howevere, there is no evidence that the flaw is being exploited in the wild. Memory Dump PoC "SonicWal
Critical RCE Bug Found in Homebrew Package Manager for macOS and Linux

Critical RCE Bug Found in Homebrew Package Manager for macOS and Linux

April 24, 2021Ravie Lakshmanan
A recently identified security vulnerability in the official Homebrew Cask repository could have been exploited by an attacker to execute arbitrary code on users' machines that have Homebrew installed. The issue, which was reported to the maintainers on April 18 by a Japanese security researcher named RyotaK, stemmed from the way code changes in its  GitHub repository  were handled, resulting in a scenario where a malicious  pull request  — i.e., the proposed changes — could be automatically reviewed and approved. The flaw was fixed on April 19. Homebrew is a free and open-source software package manager solution that allows the installation of software on Apple's macOS operating system as well as Linux. Homebrew  Cask  extends the functionality to include command-line workflows for GUI-based macOS applications, fonts, plugins, and other non-open source software. "The discovered vulnerability would allow an attacker to inject arbitrary code into a cask and have it be
Microsoft Issues Security Patches for 89 Flaws — IE 0-Day Under Active Attacks

Microsoft Issues Security Patches for 89 Flaws — IE 0-Day Under Active Attacks

March 09, 2021Ravie Lakshmanan
Microsoft plugged as many as  89 security flaws  as part of its monthly Patch Tuesday updates released today, including fixes for an actively exploited zero-day in Internet Explorer that could permit an attacker to run arbitrary code on target machines. Of these flaws, 14 are listed as Critical, and 75 are listed as Important in severity, out of which two of the bugs are described as publicly known, while five others have been reported as under active attack at the time of release. Among those five security issues are a clutch of vulnerabilities known as  ProxyLogon  (CVE-2021-26855, CVE-2021-26857, CVE-2021-26858, and CVE-2021-27065) that allows adversaries to break into Microsoft Exchange Servers in target environments and subsequently allow the installation of unauthorized web-based backdoors to facilitate long-term access. But in the wake of Exchange servers coming under  indiscriminate assault  toward the end of February by multiple threat groups looking to exploit the vulner
3 New Severe Security Vulnerabilities Found In SolarWinds Software

3 New Severe Security Vulnerabilities Found In SolarWinds Software

February 03, 2021Ravie Lakshmanan
Cybersecurity researchers on Wednesday disclosed three severe security vulnerabilities impacting SolarWinds products, the most severe of which could have been exploited to achieve remote code execution with elevated privileges. Two of the flaws (CVE-2021-25274 and CVE-2021-25275) were identified in the SolarWinds Orion Platform, while a third separate weakness (CVE-2021-25276) was found in the company's Serv-U FTP server for Windows,  said  cybersecurity firm Trustwave in a technical analysis. None of the three vulnerabilities are believed to have been exploited in any "in the wild" attacks or during the unprecedented  supply chain attack  targeting the Orion Platform that came to light last December. The two sets of vulnerabilities in Orion and Serv-U FTP were disclosed to SolarWinds on December 30, 2020, and January 4, 2021, respectively, following which the company resolved the issues on January 22 and January 25. It's highly recommended that users install th
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