March 28, 2023
Good morning, everyone!
This week’s critical vulnerabilities:
Patch All the Things! |
Introducing aCropalypse
Security folks are really hung up on catchy names for bugs they find, aren't they? This is one that all Android & Windows folks need to be aware of. A bug in Google Pixel's Markup app allows edited images to be restored to their original form. Google has fixed the bug in the app (in Android 13) for future images, but all images edited in the older version of the app (for the last six years or so) are vulnerable to reversion to original state.
In reading some commentary on this, I was reminded of a good practice that I had forgotten about: edit your image, then take a screen capture of the edited image and share that. It not only eliminates vulnerabilities in editing, it cleans out the metadata. You can also use an app to scrub metadata from your images before sharing (I do this every time). This will erase things like geolocation data that you probably don't want shared.
Turns out that aCropalypse also affects Windows 11 Snipping Tool and Windows 10 Snip & Sketch tool.
What's the answer to this one? Screenshotting as described above, or using an actual image editing tool when you need one. Bugs like this often crop up when new features are added to basic tools that weren't originally designed to do the new stuff. Using a tool (from a reliable developer) that was actually designed to do this very thing is always going to be the better option.
Happy cropping!
Glenda R. Snodgrass
grs@theneteffect.com
(251) 433-0196 x107
https://www.theneteffect.com
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