Microsoft fixes reversible screenshot vulnerability on Windows


The safety flaw may let hackers revert the edited parts of screenshots, doubtlessly revealing non-public info that somebody tried to crop or scribble out.

An image showing the Windows logo on an orange background

Microsoft has pushed an update to repair a screenshot enhancing vulnerability in Home windows 10 and 11, as spotted earlier by Bleeping Computer. The safety flaw, dubbed the “aCropalypse,” may let unhealthy actors get better the edited parts of screenshots, doubtlessly revealing private info that had been cropped out or hid.

In accordance with Microsoft, the problem (CVE-2023-28303) impacts each the Snip & Sketch app on Home windows 10 and the Snipping Software on Home windows 11. Nevertheless, it solely applies to photographs created in a really particular set of steps. That features these which have been taken, saved, edited, after which saved over the unique file, in addition to those opened within the Snipping Software, edited, after which saved to the identical location. It doesn’t have any impact on the screenshots modified earlier than saving them and in addition doesn’t impression screenshots that had been copied and pasted to, say, the physique of an e mail or doc.

Microsoft first realized of the problem earlier this week. That’s when Chris Blume, the chair of the working group for the PNG picture format, introduced it to the eye of David Buchanan and Simon Aarons — the identical safety researchers who found the aCropalypse vulnerability affecting the Google Pixel’s Markup tool. This, equally, lets hackers reverse the modifications made to screenshots, making it doable to disclose the non-public info in a picture that somebody thought they had been hiding, whether or not by cropping it out or scribbling over it.

You’ll be able to obtain the newest updates for the affected apps on Home windows by heading to the Microsoft Retailer, clicking Library, after which selecting Get updates. When you have computerized updates enabled, it is best to discover that the Snipping Software needs to be set to model 10.2008.3001.0, whereas the Snip & Sketch device will likely be model 11.2302.20.0. Similar to the patch Google issued, Microsoft’s change received’t replace the edited screenshots that had already been posted on-line, although, which may doubtlessly depart hundreds of screenshots on the net that unhealthy actors can exploit.


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