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Windows Notepad App Remote Code Execution Vulnerability

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Re: Windows Notepad App Remote Code Execution Vulnerability

#71

I'd now like to see a RCE in MS Paint or Calculator, if the exploit finder is reading this.

Up next: forgotten Piet[1] autorun feature discovered in MS Paint. Customers complain after removal, insist they have existing legacy applications depending on it.

[1] https://en.wikipedia.org/wiki/Esoteric_programming_language#...

Re: Windows Notepad App Remote Code Execution Vulnerability

#72
post #48
post #39

Earlier quoted context omitted.

Strictly, no. But it was a vulnerability in the design of Notepad++, key elements here being the featureset that requires frequent updates and the lack of integrity checks during the upgrade process. This has prompted me to move on from Notepad++ - it's sad, because I've used it for many years, but this is too much.

> in the design of Notepad++ One could argue it's an issue with windows where you can't just pull updates using a package manager/app store.

Pretty sure winget does let you do that.

Re: Windows Notepad App Remote Code Execution Vulnerability

#73
post #37

A few days ago, Notepad++ got compromised—apparently by a state actor (or a proxy). And now, today, Windows’ built-in Notepad has a fresh CVE. What a life. At this point, what am I supposed to do other than uninstall Windows completely? No real sandboxing, a mountain of legacy…

we still need a mouse icon rce until we reach peak

Re: Windows Notepad App Remote Code Execution Vulnerability

#74

We have officially reached the logical conclusion of the feature-bloat-to-vulnerability pipeline. For nearly thirty years, notepad.exe was the gold standard for a "dumb" utility which was a simple, win32-backed buffer for strings that did exactly one thing...display text. An 8.8 CVSS on a utility meant for viewing data is a fundamental failure of the principle of least privilege. At some point, they need to stop aski…

Unfortunately, code execution in text editors aren't a new thing. Vim had one published in 2019: https://github.com/numirias/security/blob/master/doc/2019-06...

Another in 2004: https://www.cve.org/CVERecord?id=CVE-2002-1377

Neither vim nor Notepad are purely for displaying text though.

Re: Windows Notepad App Remote Code Execution Vulnerability

#75

I found a copy of the win98 (I believe) notepad.exe a while back, and it works perfectly on windows 11 (though the "about notepad" dialog shows the windows 11 version for some reason??). I can write text into it, save it, and load text again. What more does notepad need? And it has a very nostalgic font too

Win9x Notepad in particular can only load files up to 64KB in size (edit: and supports only ANSI encoding, no Unicode). There were some actually useful additions to it up until Windows 10 or so - for example being able to handle LF (in addition to CRLF) line endings. But yeah, everything added in Windows 11 is just pure bloat.

I find notepad useful for sanitising clipboard content.

No bold text, italics, bullet points, invisible html.. Just get the text and can copy it to paste again somewhere else.

Ala Cmd+Shift+V on Mac

Re: Windows Notepad App Remote Code Execution Vulnerability

#78

Earlier quoted context omitted.

Win9x Notepad in particular can only load files up to 64KB in size (edit: and supports only ANSI encoding, no Unicode). There were some actually useful additions to it up until Windows 10 or so - for example being able to handle LF (in addition to CRLF) line endings. But yeah, everything added in Windows 11 is just pure bloat.

I find notepad useful for sanitising clipboard content. No bold text, italics, bullet points, invisible html.. Just get the text and can copy it to paste again somewhere else. Ala Cmd+Shift+V on Mac

You can Ctrl+shift+v to paste plain text in windows.

Re: Windows Notepad App Remote Code Execution Vulnerability

#79

We have officially reached the logical conclusion of the feature-bloat-to-vulnerability pipeline. For nearly thirty years, notepad.exe was the gold standard for a "dumb" utility which was a simple, win32-backed buffer for strings that did exactly one thing...display text. An 8.8 CVSS on a utility meant for viewing data is a fundamental failure of the principle of least privilege. At some point, they need to stop aski…

tell this to level N-1 managers that want to get promoted by the only way of "launching features"

Re: Windows Notepad App Remote Code Execution Vulnerability

#80

We have officially reached the logical conclusion of the feature-bloat-to-vulnerability pipeline. For nearly thirty years, notepad.exe was the gold standard for a "dumb" utility which was a simple, win32-backed buffer for strings that did exactly one thing...display text. An 8.8 CVSS on a utility meant for viewing data is a fundamental failure of the principle of least privilege. At some point, they need to stop aski…

"For nearly thirty years, notepad.exe was the gold standard for a "dumb" utility which was a simple, win32-backed buffer for strings that did exactly one thing...display text." Well, except that this did not prevent it from having embarrassing bugs. Google "Bush hid the facts" for an example. I'm serious, you won't be disappointed. I think complexity is relative. At the time of the "Bush hid the facts" bug, nailing d…

Fascinating reading about that bug, thanks for sharing
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