Discover and read the best of Twitter Threads about #crashdump

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[#thread 🧵] Last week in #Microsoft #PatchTuesday, a critical vulnerability was patched that theoretically allows attackers to achieve Remote Code Execution on a target #IIS server (CVE-2022-21907). I'll explain how it works in this thread ⬇️ Image
[#thread 🧵(2/9)] A bit of History !

First of all, it is important to know that this vulnerability is a sibling of CVE-2021-31166 disclosed in May of last year. These two vulnerabilities occur in the parsing of HTTP headers of an incoming request, within the http.sys driver. Image
[#thread 🧵(3/9)] But what happens exactly 🤔 ?

To understand what happens in a kernel driver crash, It's important to analyze the kernel #crashdump generated at the moment of the blue screen! Let's open it in #WinDbg and analyze it! Image
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