Security News
November 2022 Patch Tuesday is here, with fixes for many vulnerabilities actively exploited in the wild, including CVE-2022-41091, a Windows Mark of the Web bypass flaw, and the ProxyNotShell MS Exchange vulnerabilities. "In all cases an attacker would have no way to force a user to view attacker-controlled content. Instead, an attacker would have to convince a user to take action. For example, an attacker could entice a user to either click a link that directs the user to the attacker's site or send a malicious attachment," Microsoft says, but as security researcher Kevin Beaumont recently noted, it has been successfully exploited by different attackers in the wild for months.
Microsoft has reminded customers today that all editions of Windows 10 21H1 are reaching the end of service next month. Windows customers should upgrade to the latest release as soon as possible to avoid exposing their devices to attacks exploiting unpatched security vulnerabilities since Windows 10 21H1 will no longer receive security updates.
Microsoft has released security updates to address two high-severity Microsoft Exchange zero-day vulnerabilities collectively known as ProxyNotShell and exploited in the wild. Microsoft confirmed they were actively abused in attacks on September 30, saying it was "Aware of limited targeted attacks using the two vulnerabilities to get into users' systems."
Today is Microsoft's November 2022 Patch Tuesday, and with it comes fixes for six actively exploited Windows vulnerabilities and a total of 68 flaws. This month's Patch Tuesday fixes six actively exploited zero-day vulnerabilities, with one being publicly disclosed.
Microsoft is now promoting some of its products in the sign-out flyout menu that shows up when clicking the user icon in the Windows 11 start menu. Redmond has pushed ads within the user interface of Microsoft Office apps or other Windows apps before.
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At its Ignite 2022 event last month, Microsoft announced general availability of Azure Active Director certificate-based authentication, addressing a component the Biden Administration's executive order last year to strengthen the US's cybersecurity. Microsoft is now offering a public preview of Azure AD CBA on devices running Apple's iOS and Android that uses certificates on Yubico's YubiKey hardware security key.
Microsoft has asserted that China's offensive cyber capabilities have improved, thanks to a law that has allowed Beijing to create an arsenal of unreported software vulnerabilities. China's 2021 law required organizations to report security vulnerabilities to local authorities before disclosing them to any other entity.
Programmer and lawyer Matthew Butterick has sued Microsoft, GitHub, and OpenAI, alleging that GitHub's Copilot violates the terms of open-source licenses and infringes the rights of programmers. GitHub Copilot, released in June 2022, is an AI-based programming aid that uses OpenAI Codex to generate real-time source code and function recommendations in Visual Studio.
Microsoft is warning of an uptick in the nation-state and criminal actors increasingly leveraging publicly-disclosed zero-day vulnerabilities for breaching target environments. The tech giant, in its 114-page Digital Defense Report, said it has "Observed a reduction in the time between the announcement of a vulnerability and the commoditization of that vulnerability," making it imperative that organizations patch such exploits in a timely manner.