Category Archives: Vulristics

Microsoft Patch Tuesday September 2020: Zerologon and other exploits, RCEs in SharePoint and Exchange

I would like to start this post by talking about Microsoft vulnerabilities, which recently turned out to be much more serious than it seemed at first glance.

Older Vulnerabilities with exploits

“Zerologon” Netlogon RCE (CVE-2020-1472)

One of them is, of course, the Netlogon vulnerability from the August 2020 Patch Tuesday. It’s called “Zerologon”. I would not say that Vulnerability Management vendors completely ignored it. But none of them (well, maybe only ZDI) emphasized in their reports that this vulnerability would be a real disaster.

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Microsoft Patch Tuesday July 2020: my new open source project Vulristics, DNS SIGRed, RDP Client and SharePoint

I am doing this episode about July vulnerabilities already in August. There are 2 reasons for this. First of all, July Microsoft Patch Tuesday was published in the middle of the month, as late as possible. Secondly, in the second half of July I spent my free time mostly on coding. And I would like to talk more about this.

Microsoft Patch Tuesday July 2020: my new open source project Vulristics, DNS SIGRed, RDP Client and SharePoint

Vulristics

I decided to release my Microsoft Patch Tuesday reporting tool as part of a larger open source project (github). I named it Vulristics (from “Vulnerability” and “Heuristics”). I want this to be an extensible framework for analyzing publicly available information about vulnerabilities.

Let’s say we have a vulnerability ID (CVE ID) and we need to decide whether it is really critical or not. We will probably go to some vulnerability databases (NVD, CVE page on the Microsoft website, Vulners.com, etc.) and somehow analyze the descriptions and parameters. Right? Such analysis can be quite complex and not so obvious. My idea is to formalize it and make it shareable. It may not be the most efficient way to process data, but it should reflect real human experience, the things that real vulnerability analysts do. This is the main goal.

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