4 ms·
It's recursive, but not XXE. It is 20 layers of nested SVG groups, where the first group contains 10 blue circles, and every subsequent group contains 10 of the
by nneonneo 1y ago
It's recursive, but not XXE. It is 20 layers of nested SVG groups, where the first group contains 10 blue circles, and every subsequent group contains 10 of the previous group. This would render as around 10^20 blue circles.
- pcthrowaway 1y agoSVG is XML-based, unlike HTML which follows the SGML spec From curling the malicious page you can also see: <?xml version="1.0" encoding="UTF-8"?> <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1000" height="1000">
- nneonneo 1y agoYes, SVGs are XML-based and may be vulnerable to generic XML-based XML external entity (XXE) or exponential entity expansion attacks, but this particular malicious SVG is using SVG-specific features to create the resource exhaustion.