[German]After the update to Microsoft Edge 103.0.1264.44 has been released on June 30, 2022, I got reports from users, increasingly noticing that temporary download remnants (.crdownload files) remain in the download folder after downloads (e.g. of .exe and .msi files, but also other files). But I found first reports for Edge 100 too.
[German]In recent months, a number of vulnerabilities and attack mechanisms have become known that could be used to siphon off credentials (NTLM/Kerberos). Not all vulnerabilities are easily exploitable, not everything has been fully patched by Microsoft. ACROS Security has now decided to close all known and exploitable Windows NTLM/Kerberos vulnerabilities by means of micropatches. ACROS Security has also completed the DFSCoerce forced authentication issue micropatch.
[German]Microsoft has updated the Edge browser in the stable channel to version 103.0.1264.44 as of June 30, 2022. It is a maintenance update that fixes the Elevation of Privilege vulnerability CVE-2022-33680, which is rated as critical. And this build fixes group policy issues, some administrators are facing. But I got reports about a download bug.
[German]Security researcher Naveen Sunkavally of Horizon3.ai recently discovered vulnerability CVE-2022-28219. This allows remote code execution without further authentication by the attacker and affects Zoho ManageEngine ADAudit Plus. This is a compliance tool used by enterprises to monitor changes to Active Directory. The vulnerability involves several issues: untrusted Java deserialization, path traversal and a blind XML External Entities (XXE) injection. The vulnerabilities have since been fixed.
[German]Security vendor Kaspersky has come across a little-known backdoor, undetected by antivirus solutions, that leaves malware on Microsoft Exchange servers in the IIS module. There are infections of the so-called SessionManager backdoor in Exchange systems worldwide. The SessionManager backdoor enables a wide range of malicious activities, from collecting emails to taking complete control over the victim's infrastructure. The newly discovered backdoor was first deployed in late March 2021 and has hit government and non-government organizations in Africa, South Asia, Europe and the Middle East. Most of the organizations attacked remain compromised to this day.
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[German]Security researchers from Palo Alto Networks have encountered a container escape vulnerability in Microsoft's Service Fabric, which they then named FabricScape. The vulnerability allowed container escapes in Microsoft's Service Fabric, which is commonly used with Azure. Palo Alto Networks has partnered with Microsoft to address this vulnerability.
[German]The manufacturer Knauf (gypsum, Plaster, building materials) fell victim to a cyber attack on June 29, 2022. The company's IT systems are affected worldwide and had to be shut down. Too much information in terms of details is unfortunately not yet known – the company hopes to have isolated the incident after the security system struck, but is still engaged in analysis. Addendum: Black Basta gang claims responsibility and has leaked data.
[German]I'm going to pull out an issue that may be of concern to administrators among of my blog readers. Since the release of Microsoft Edge Stable 103.0.1264.37, I got reports, that group policies no longer work. This night I came across more reports at Microsoft. So I'll briefly summarize the state of affairs here for your information. A fix is in the work (at Chromium and Edge developer teams).
[German]In addition to Firefox developers who have provided updates to the Firefox browser (see Firefox 102.0 and ESR, as well as 91.11esr released), new versions of the Thunderbird email client were also released on June 28, 2022. At the same time, security vulnerabilities – also in the the version 91.11.0 were closed. Thanks to the reader for the tip.
[German]Are Microsoft Exchange servers on the current patch level still vulnerable via the remote code execution vulnerability CVE-2022-23277? Some fragments of information have just come to my attention that at least raise questions. In any case, the disclosure of the details that led to the vulnerability is interesting. I'll try to summarize the information as best as I can.
MVP:
2013 – 2016
WIMVP:
2017 – 2020
