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HowToHunt
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  • Summary:
  • Steps to reproduce:
  • Reports (Hackerone)
  • Author
  1. EXIF Geo Data Not Stripped

EXIF Geo Data Not Stripped

Summary:

When a user uploads an image in example.com, the uploaded image’s EXIF Geolocation Data does not gets stripped. As a result, anyone can get sensitive information of example.com users like their Geolocation, their Device information like Device Name, Version, Software & Software version used etc.

Steps to reproduce:

  1. Got to Github ( https://github.com/ianare/exif-samples/tree/master/jpg)

  2. There are lot of images having resolutions (i.e 1280 * 720 ) , and also whith different MB’s .

  3. Go to Upload option on the website

  4. Upload the image

  5. see the path of uploaded image ( Either by right click on image then copy image address OR right click, inspect the image, the URL will come in the inspect , edit it as html )</br>

  6. open it (http://exif.regex.info/exif.cgi)</br>

  7. See wheather is that still showing exif data , if it is then Report it.

Reports (Hackerone)

  • IDOR with Geolocation data not stripped from images

Author

  • @0xd3vil

  • @klaus

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Last updated 4 years ago