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WinRAR flaw lets hackers run programs when you open RAR archives (www.bleepingcomputer.com)

submitted 1 year ago by TheOneWithTheHair@lemmy.world to c/technology@lemmy.world

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[–] db2@sopuli.xyz 268 points 1 year ago (37 children)

Well now I'm definitely not buying it.

[–] NateNate60@lemmy.ml 93 points 1 year ago (33 children)

I never understood the appeal of paid programs. 7-Zip works equally well and is free and open source software. It integrates much nicer into File Explorer as well.

[+] Valmond@lemmy.mindoki.com -8 points 1 year ago (6 children)

WinRar decompresses directly to destination. All other I have tried does it to like c:/tmp (can probably change that though) then copy it over, which is impractical or even impossible with really large files.

That's about it though IMO.

[–] pijon@lemdro.id 8 points 1 year ago (2 children)

You can decompress directly to the destination with 7zip as well. You just need to use the "extract" button instead of doing a drag and drop.

[–] Tick_Dracy@lemmy.world 6 points 1 year ago

This is the right answer! Since I never used drag and drop I wasn't ever aware that this was an issue.

According to the FAQ:

Why does drag-and-drop archive extraction from 7-Zip to Explorer use temp files?

7-Zip doesn't know folder path of drop target. Only Windows Explorer knows exact drop target. And Windows Explorer needs files (drag >source) as decompressed files on disk. So 7-Zip extracts files from archive to temp folder and then 7-Zip notifies Windows Explorer about >paths of these temp files. Then Windows Explorer copies these files to drop target folder.

To avoid temp file usage, you can use Extract command of 7-Zip or drag-and-drop from 7-Zip to 7-Zip.

[–] Valmond@lemmy.mindoki.com 0 points 1 year ago

Cool thanks for the info, I did it by script but then trere is maybe some option I didn't find...

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