Search results for Windows security bypass | Breaking Cybersecurity News | The Hacker News

Microsoft has been expressing its love for Linux for almost three years now, and this love costs Microsoft an arm and a leg. Last year, Microsoft surprised everyone by announcing the arrival of Windows Subsystem for Linux (WSL) in Windows 10, which brings the Linux command-line shell to Windows , allowing users to run native Linux applications on Windows system without virtualization. However, security researchers from security firm Check Point Software Technologies have discovered a potential security issue with the WSL feature that could allow malware families designed for Linux target Windows computers—undetected by all current security software. The researchers devised a new attack technique, dubbed Bashware , that takes advantage of Windows' built-in WSL feature, which is now out of beta and is set to arrive in the Windows 10 Fall Creators Update in October 2017. Bashware Attack Undetectable by All Anti-Virus & Security Solutions According to CheckPoint rese...

A new attack technique could be used to bypass Microsoft's Driver Signature Enforcement (DSE) on fully patched Windows systems, leading to operating system (OS) downgrade attacks. "This bypass allows loading unsigned kernel drivers, enabling attackers to deploy custom rootkits that can neutralize security controls, hide processes and network activity, maintain stealth, and much more," SafeBreach researcher Alon Leviev said in a report shared with The Hacker News. The latest findings build on an earlier analysis that uncovered two privilege escalation flaws in the Windows update process ( CVE-2024-21302 and CVE-2024-38202 ) that could be weaponized to rollback an up-to-date Windows software to an older version containing unpatched security vulnerabilities. The exploit materialized in the form of a tool dubbed Windows Downdate, which, per Leviev, could be used to hijack the Windows Update process to craft fully undetectable, persistent, and irreversible downgrades on...

Microsoft rolled out  Patch Tuesday updates  for the month of July with fixes for a total of 117 security vulnerabilities, including nine zero-day flaws, of which four are said to be under active attacks in the wild, potentially enabling an adversary to take control of affected systems.  Of the 117 issues, 13 are rated Critical, 103 are rated Important, and one is rated as Moderate in severity, with six of these bugs publicly known at the time of release.  The updates span across several of Microsoft's products, including Windows, Bing, Dynamics, Exchange Server, Office, Scripting Engine, Windows DNS, and Visual Studio Code. July also marks a dramatic jump in the volume of vulnerabilities, surpassing the number Microsoft collectively addressed as part of its updates in  May  (55) and  June  (50). Chief among the security flaws actively exploited are as follows — CVE-2021-34527  (CVSS score: 8.8) - Windows Print Spooler Remote Code Exec...

This week you have quite a long list of updates to follow from Microsoft, Adobe as well as Firefox. Despite announcing plans to kill its monthly patch notification for Windows 10, the tech giant has issued its May 2015 Patch Tuesday , releasing 13 security bulletins that addresses a total of 48 security vulnerabilities in many of their products. Separately, Adobe has also pushed a massive security update to fix a total of 52 vulnerabilities in its Flash Player, Reader, AIR and Acrobat software. Moreover, Mozilla has fixed 13 security flaws in its latest stable release of Firefox web browser, Firefox 38, including five critical flaws. First from the Microsoft's side: MICROSOFT PATCH TUESDAY Three out of 13 security bulletins issued by the company are rated as 'critical', while the rest are 'important' in severity, with none of these vulnerabilities are actively exploited at this time. The affected products include Internet Explorer (IE), ...

If you are using any supported version of the Windows operating system, stop everything and install the latest security updates from Microsoft immediately. Windows operating system contains four new critical wormable, remote code execution vulnerabilities in Remote Desktop Services, similar to the recently patched ' BlueKeep ' RDP vulnerability. Discovered by Microsoft's security team itself, all four vulnerabilities, CVE-2019-1181 , CVE-2019-1182 , CVE-2019-1222 , and CVE-2019-1226 , can be exploited by unauthenticated, remote attackers to take control of an affected computer system without requiring any user interaction. Just like BlueKeep RDP flaw , all four newly discovered vulnerabilities are also wormable and could be exploited by potential malware to propagate itself from one vulnerable computer to another automatically. "An attacker can get code execution at the system level by sending a specially crafted pre-authentication RDP packet to an affected RD...

For the last Patch Tuesday for this year, Microsoft has released 12 security bulletins, half of which are rated 'critical' as they give attackers remote code execution capabilities on the affected computers. The security bulletins address vulnerabilities in Microsoft's Windows, Office, Internet Explorer and Edge. The first critical security bulletin, MS16-144 , patches a total of 8 security vulnerabilities in Internet Explorer, 3 of which had publicly been disclosed before Microsoft issued patches for them, though the company said they're not being exploited in the wild. The 3 publicly disclosed vulnerabilities include a Microsoft browser information disclosure vulnerability (CVE-2016-7282), a Microsoft browser security feature bypass bug (CVE-2016-7281) and a scripting engine memory corruption vulnerability (CVE-2016-7202) that allow remote code execution on the affected computer. The remaining 5 security flaws include a scripting engine memory corruption b...

Microsoft on Tuesday disclosed that three new security flaws impacting the Windows platform have come under active exploitation as part of its Patch Tuesday update for September 2024. The monthly security release addresses a total of 79 vulnerabilities, of which seven are rated Critical, 71 are rated Important, and one is rated Moderate in severity. This is aside from 26 flaws that the tech giant resolved in its Chromium-based Edge browser since last month's Patch Tuesday release. The three vulnerabilities that have been weaponized in a malicious context are listed below, alongside a bug that Microsoft is treating as exploited - CVE-2024-38014 (CVSS score: 7.8) - Windows Installer Elevation of Privilege Vulnerability CVE-2024-38217 (CVSS score: 5.4) - Windows Mark-of-the-Web (MotW) Security Feature Bypass Vulnerability CVE-2024-38226 (CVSS score: 7.3) - Microsoft Publisher Security Feature Bypass Vulnerability CVE-2024-43491 (CVSS score: 9.8) - Microsoft Windows Updat...

It's time to gear up your systems and software for the latest July 2018 Microsoft security patch updates. Microsoft today released security patch updates for 53 vulnerabilities, affecting Windows, Internet Explorer (IE), Edge, ChakraCore, .NET Framework, ASP.NET, PowerShell, Visual Studio, and Microsoft Office and Office Services, and Adobe Flash Player. Out of 53 vulnerabilities, 17 are rated critical, 34 important, one moderate and one as low in severity. This month there is no critical vulnerability patched in Microsoft Windows operating system and surprisingly, none of the flaw patched by the tech giant this month is listed as publicly known or under active attack. Critical Flaws Patched In Microsoft Products Most of the critical issues are memory corruption flaws in IE, Edge browser and Chakra scripting engine, which if successfully exploited, could allow an unauthenticated, remote attacker to execute arbitrary code on a targeted system in the context of the cur...

It's Patch Tuesday once again…time for another round of security updates for the Windows operating system and other Microsoft products. This month Windows users and system administrators need to immediately take care of a total of 63 security vulnerabilities, of which 12 are rated critical, 49 important and one moderate and one low in severity. Two of the vulnerabilities patched by the tech giant this month are listed as publicly known at the time of release, and one flaw is reported as being actively exploited in the wild by multiple cybercriminal groups. Zero-Day Vulnerability Being Exploited by Cyber Criminals The zero-day vulnerability, tracked as CVE-2018-8589 , which is being exploited in the wild by multiple advanced persistent threat groups was first spotted and reported by security researchers from Kaspersky Labs. The flaw resides in the Win32k component (win32k.sys), which if exploited successfully, could allow a malicious program to execute arbitrary code...

Adobe has released security updates to fix seven vulnerabilities in its Flash and Air platforms and one in its Reader and Acrobat which, according to the company, is being exploited by attackers in wild " ...in limited, isolated attacks targeting Adobe Reader users on Windows. " The vulnerabilities could allow an attacker to " take control of affected systems " marked critical by the company. A new, out-of-band patch addresses a zero-day vulnerability (CVE-2014-0546) in Adobe Reader and Acrobat that offers an attacker the possibility to bypass sandbox protection and has been leveraged in "limited, isolated attacks" against Windows users. " These updates resolve a sandbox bypass vulnerability that could be exploited to run native code with escalated privileges on Windows, " Adobe warned. The lone vulnerability in Adobe Acrobat and Reader was reported by Kaspersky Lab Global Research and Analysis Team director Costin Raiu and V...

Microsoft formally released fixes for 112 newly discovered security vulnerabilities as part of its  November 2020 Patch Tuesday , including an actively exploited zero-day flaw disclosed by Google's security team last week. The rollout addresses flaws, 17 of which are rated as Critical, 93 are rated as Important, and two are rated Low in severity, once again bringing the patch count over 110 after a drop last month. The security updates encompass a range of software, including Microsoft Windows, Office and Office Services and Web Apps, Internet Explorer, Edge, ChakraCore, Exchange Server, Microsoft Dynamics, Windows Codecs Library, Azure Sphere, Windows Defender, Microsoft Teams, and Visual Studio. Chief among those fixed is  CVE-2020-17087  (CVSS score 7.8), a buffer overflow flaw in Windows Kernel Cryptography Driver ("cng.sys") that was  disclosed on October 30  by the Google Project Zero team as being used in conjunction with a Chrome zero-day to co...

Among several vulnerabilities, Microsoft on Tuesday patched a critical vulnerability that could be exploited by hackers to bypass security measures on all versions of Windows operating systems from XP to Windows 10, just by modifying a single bit. The local privilege escalation vulnerability ( CVE-2015-0057 ) could give attackers total control of the victims' machines, explains Udi Yavo, the chief technology officer at the security firm enSilo. " A threat actor that gains access to a Windows machine can exploit this vulnerability to bypass all Windows security measures, defeating mitigation measures such as sandboxing, kernel segregation and memory randomization ," said Yavo. INTERESTING PART OF THE FLAW Yavo continued, " Interestingly, the exploit requires modifying only a single bit of the Windows operating system. " The flaw existed in the graphical user interface (GUI) component of the Win32k.sys module within the Windows Kernel which, amon...

As part of its "October Patch Tuesday," Microsoft has today released a large batch of security updates to patch a total of 62 vulnerabilities in its products, including a severe MS office zero-day flaw that has been exploited in the wild. Security updates also include patches for Microsoft Windows operating systems, Internet Explorer, Microsoft Edge, Skype, Microsoft Lync and Microsoft SharePoint Server. Besides the MS Office vulnerability, the company has also addressed two other publicly disclosed (but not yet targeted in the wild) vulnerabilities that affect the SharePoint Server and the Windows Subsystem for Linux. October patch Tuesday also fixes a critical Windows DNS vulnerability that could be exploited by a malicious DNS server to execute arbitrary code on the targeted system. Below you can find a brief technical explanation of all above mentioned critical and important vulnerabilities. Microsoft Office Memory Corruption Vulnerability (CVE-2017-11826) T...