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#!/usr/bin/env bash
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if [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
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cat << 'EOF'
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Usage: clickjacking url [outfile]
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The script will use a headless version of firefox to screenshot a page containing the provided url in an iframe
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This script will create a firefox profile called headless to create the screenshot with
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EOF
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exit 0
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fi
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# Name of firefox binary
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firefox="firefox"
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# If firefox developer edition is installed, use that instead
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type "firefox-developer-edition" 2>&1 >/dev/null && firefox="firefox-developer-edition"
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die(){
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echo "$@"
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exit 1
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}
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# Name of firefox profile to use
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# This will need to be a profile that isn't currently open
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# I suggest making one for headless use
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# go to about:profiles in firefox to create one
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profile="headless"
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# Url of site to put in iframe
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url="$1"
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[ -z "$url" ] && die "You need to provide a url"
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# Name of image to make
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output="${2:-screenshot.png}"
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$firefox -CreateProfile "$profile" -no-remote 2>&1 >/dev/null
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source="
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset='UTF-8' />
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<meta name='viewport' content='width=device-width' />
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<title>Clickjacking example</title>
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<style type='text/css' media='screen'>
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body{
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width: 100vw;
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height: 100vh;
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border: 2px solid black;
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}
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iframe{
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border: 3px solid black;
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width: 80%;
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height: 80%;
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margin: 20px auto;
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display: block;
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}
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h1, p{
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text-align: center;
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}
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</style>
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</head>
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<body>
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<h1>Clickjacking example</h1>
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<iframe src='$url'>
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</iframe>
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<p>If content is rendered above, the site is vulnerable to clickjacking</p>
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</body>
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</html>
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"
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$firefox -P "$profile" --screenshot "$output" "data:text/html;base64,$(echo "$source" | base64 -w 0)"
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