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In an April 2019 blog by Mike Fortin, Corporate Vice President, Windows, Microsoft described how it is using natural language processing (NLP) and machine learning (ML) to identify high-severity issues. Users now have much more agency over precisely which updates they install, and when they do it.īut as this incident shows, there’s still huge scope for improvement. Microsoft made a number of significant changes to how users update, from Version 1903, after customers reacted with fury to forced updates, many of which came with a host of attendant bugs.
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Microsoft said: “To help a sub-set of affected devices, the standalone security update has been removed and will not re-offered from Windows Update, Windows Server Update Services (WSUS) or Microsoft Update Catalog.” See also: Microsoft Admits That Windows 10 Update 1903 is Knocking Out Wi-Fi
#Kaspersky rescue disk 18 software
I tried flushing the Software Distribution cache but get the same results.” Again freezes hard requiring a hard re-set.
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On a third “Check for updates, the same (KB4524244) update attempted to download but freezes the system at 94% on the download.
I rebooted a couple more times but no updates attempted to install. I was able to get those repaired and reboot into the system. On the reboot, my Secure Boot flagged me that the keys were corrupted. “After about 15 mins I finally forced the system down. Windows 10 Update Issues: A Typical Experience…Īs one typical comment on Microsoft’s user forum described their experience: “KB4524244 downloaded and installed but on the reboot, it rebooted the first time but froze hard on the second re-boot with Step 2 information and a frozen spinner on my screen, no keyboard or any access.
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KB4524244 was available for a wide range of both client and service platforms: from Windows 8.1 through to Windvia Windows Server 2012 through to Windows Server 1909 and Windows Server 2019. Here's Silent UEFIinSecureBoot Disk on rutracker then: Neither UEFI Forum nor Kaspersky revoked vulnerable UEFI bootloader which allows to bypass Secure Boot with default configuration (with stock Microsoft keys) for unknown reason. “I assume that Kaspersky bootloader signature certificate will not live long, and it will be added to global UEFI certificate revocation list, which will be installed on computers running Windows 10 via Windows Update, breaking Kaspersky Rescue Disk 18 and Silent UEFIinSecureBoot Disk. These files can be used both for good deeds (for booting from USB flash drives) and for evil ones (for installing bootkits without computer owner consent). efi files with Secure Boot enabled, without the need to add a certificate to UEFI db or shim MOK. ValdikSS wrote: “Using signed Kaspersky Rescue Disk files, we achieved a silent boot of any untrusted.
In a detailed write-up, they noted at the time how they were able to exploit Microsoft’s signing of Kaspersky Rescue Disk 18, which they then leveraged to boot untrusted files even with Secure Boot enabled. Windows update KB4524244 revokes the digital signature of Kaspersky file to prevent it from being executed, but unfortunately causes issues on some HP motherboards…” He added: “ vulnerable bootloader which I found on Kaspersky Rescue Disk could be used to bypass physical presence requirement, which allows the remote attacker to replace OS bootloader files from the operating system itself with malicious ones, and the computer will still boot. “Secure Boot does not restrict user rights, it could be always disabled or reconfigured to include your own signing key, but this could be done only with physical presence: you need to go to UEFI setup to do this, but not from the OS. This includes Windows, various Linux distributions, HDD OS copying software, bootable anti-viruses, recovery disks, etc, but not arbitrary or malicious files which don’t get Microsoft approval. When Secure Boot is enabled, only files digitally signed by Microsoft are allowed to run. He told Computer Business Review: “T his Kaspesky bootloader allows to circumvent Secure Boot - the technology created to protect from viruses and trojans which could run very early in a computer boot stage, before the operating system.
This vulnerability was reportedly first flagged to Microsoft over 10 months ago Russian security researcher ValdikSS first detailing the issue in April 2019.
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