Operation Cronos: FBI & Co. seized infrastructure of the Lockbit ransomware gang

Posted on 2024-02-20 by guenni

Sicherheit (Pexels, allgemeine Nutzung)[German]It has been known for a few hours that law enforcement officers have seized some of the Lockbit ransomware gang's infrastructure servers in an internationally coordinated operation (FBI, Europool, etc.) and taken control of them. Official information on "Operation Cronos" is not yet available, and it looks as if there are still servants of the group online. Here is a first overview. Addendum 1: The press releases from law enforcement are online: Two suspects have been arrested, 200 cryptocurrency accounts have been frozen, and free decryption tools for lockbit victims are provided on No More Ransome. Addendum 2: It's not over yet.

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New Teams 2.0 client doesn't ask for password for re-login

Posted on 2024-02-19 by guenni

Teams[German]A reader has pointed out to me that there is a behavior that should make it possible to bypass authentication with the user account on the client. Specifically, a third party can log in to the account again without entering a password, after a user logs out. It's a problem of single sign on. I'll put the reader's information up for discussion.

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OneDrive trap: Some folder names can prevent synchronization

Posted on 2024-02-18 by guenni

[German]In OneDrive is lurking a trap when choosing names for files and folders. With the wrong names, the synchronization of files between OneDrive storage and the system's local storage fails. The whole thing doesn't seem to have been properly documented by Microsoft either.

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Edge 121.0.2277.128

Posted on 2024-02-17 by guenni

Edge[German]Microsoft has released another update of the Edge (Chromium) browser with version 121.0.2277.128 in the stable channel on February 15, 2024. It is an update that closes vulnerabilities (from the Chromium browser) and fixes an import error. Continue reading →

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Follow-up on CU 14 for Exchange 2019 and vulnerability CVE-2024-21410 (Feb. 2024)

Posted on 2024-02-16 by guenni

Exchange Logo[German]On February 13, 2024, a critical vulnerability CVE-2024-21410 in Microsoft Exchange Server became public. The Elevation of Privilege vulnerability has a CVEv3 score of 9.8 and is likely to be exploited (soon). Security authorities are warning about this vulnerability. However, there was confusion among the blog readership because as of February 13, there was only CU 14 for Exchange Server 2019, which does not explicitly close the vulnerability. What about Exchange Server 2016 and what do I need to do to be protected against CVE-2024-21410? Here is a review with a rough outline.

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Why ISL Online: Critical factors when choosing a remote desktop solution

[Sponsored Post]In the rapidly evolving IT world, choosing the right remote desktop software is critical for organizations that value security, ease of use and reliability. One provider of secure remote access that has been on the market since 2001 is ISL Online, which presents some considerations for choosing such software below. More ...

Windows 10: Update KB5034441 fails again with error 0x80070643 in February 2024

Posted on 2024-02-15 by guenni

Windows[German]Brief question to the readership, I have received initial reports that there are also installation problems in February 2024, around the patchday on February 13, 2024. The Win RE update KB5034441 for Windows 10 fails with the installation error 0x80070643. This error has already driven hordes of users to despair in January 2024. Here is a brief overview of what I have encountered so far.

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Microsoft Office Updates (February 13, 2024)

Posted on 2024-02-15 by guenni

Update[German]On February 13, 2024 (second Tuesday of the month, Microsoft Patchday), Microsoft released several security-related updates for Microsoft Office 2016 and other products. A critical vulnerability in Outlook will be closed in February 2024. Below you will find an overview of the available updates.
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Warning about critical Outlook RCE vulnerability CVE-2024-21413

Posted on 2024-02-15 by guenni

[German]I'll pull it out again separately: In Microsoft Outlook, a CVE-2024-21413 classified as critical has been disclosed, which will be closed with the February 2024 security updates. The remote code execution vulnerability is almost trivial to exploit. Here is some more information.

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Microsoft BUILD on May 21 – 23, 2024

Posted on 2024-02-15 by guenni

Microsoft plans to hold this year's BUILD developer conference from May 21-23, 2024 in Seattle at the Seattle Convention Center. The company announced this yesterday.

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Google Chrome 122.0.6261.39/49; 121.0.6167.184 / .185

Posted on 2024-02-15 by guenni

Chrome[German]Google released updates to the Google Chrome browser (branch 121) in the stable channel on February 13 and 14, 2024. There were also updates for the 122 and 120 development branches. The Android and iOS app of the Chrome browser were also updated. Some of the updates contain security fixes. Here is an overview of these updates.
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