Tag Archives: Network

News about the Windows SMBv3 vulnerability SMBGhost

[German]A brief update to the SMBGhost vulnerability CVE-2020-0796 in the SMBv3 protocol in Windows 10 version 190x and Windows Server 2019, although Microsoft has released an update to close the vulnerability. However, this update causes installation errors on some systems. … Continue reading

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A Scanner for Windows SMBv3 Vulnerability CVE-2020-0796

[German]A short tip note for administrators on enterprise networks who want to verify that Windows servers are vulnerable to the unpatched SMBv3 vulnerability CVE-2020-0796. There is a Pyton script for this purpose. Advertising

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How to find weak passwords in Active Directory and eliminate them with PowerShell

[Sponsored Post]Weak or compromised passwords are a known gateway for attackers. If you are able to identify which users in Active Directory (AD) are threatened by this, then PowerShell can help to remedy it. However, PowerShell scripts cannot eliminate basic AD deficits, other tools are needed for this. More ...

Windows SMBv3 0-day vulnerability CVE-2020-0796

[German]There is a serious but unpatched vulnerability in the SMBv3 network protocol in Windows. This could allow the spread of worms, but is not currently exploited. Microsoft provided the information in a security advisory yesterday. Advertising

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Microsoft recommends disabling SMBv1 on Exchange

[German]Microsoft recommends that administrators of Exchange Servers disable the SMBv1 protocol on these machines for security reasons. Here are a few details about that recommendation. Advertising

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Confidence in SD-WAN Shaken by Digital Transformation

Advertising SD-WAN is set for strong growth in 2020 – as buyers migrate from MPLS to a more agile and affordable alternative. Survey findings from Cato Networks suggest focusing on SD-WAN for MPLS replacement and failing to fully consider digital … Continue reading

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PoC for Citrix ADC/Netscaler vulnerability CVE-2019-19781

[German]There is an unpatched vulnerability CVE-2019-19781 in Citrix ADC (Application Delivery Controller, formerly Netscaler) and proof of concept (PoC) exploits have been available for a few days to exploit the vulnerability – and honeypots are already under attack. I got … Continue reading

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Fix for issues on Windows share from macOS

[German]Since Microsoft released update KB4503276 of June 2019, users of macOS have had problems accessing shares on Windows machines (clients and servers). SMB1 and LTLM are causing problems. Apple has now published a KB article on this topic. Advertising

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Assign network level authentication w/o Group Policies

[German]How to assure, that authentication at network level is on in Windows, if no Group Policies are available (for instance in all Windows Home editions)? Here is a short advise. Advertising

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Windows 10 Network bug in all versions, fix are planned

[German]Microsoft's January 2019 updates are causing a network issue in all supported Windows 10 versions. A patch to correct the problem is expected in February 2019 or later. Here is some information about what is going on. Advertising

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Fix for the Windows 7 SMB network bug caused by Update KB4480970/KB4480960

[German]On January 12, 2019, Microsoft released a fix for affected Windows 7 systems to fix the issue caused by the January 2019 update when accessing network shares.  Advertising

Posted in issue, Update, Windows | Tagged , , , | 7 Comments