GHSA-6j75-5wfj-gh66: Twig has a possible sandbox bypass

1. GitHub Advisory Database
2. GitHub Reviewed
3. CVE-2024-45411

Twig has a possible sandbox bypass

High severity GitHub Reviewed Published Sep 9, 2024 in twigphp/Twig • Updated Sep 9, 2024

Package

Affected versions

>= 1.0.0, < 1.44.8

>= 2.0.0, < 2.16.1

>= 3.0.0, < 3.14.0

Patched versions

1.44.8

2.16.1

3.14.0

Description

Under some circumstances, the sandbox security checks are not run which allows user-contributed templates to bypass the sandbox restrictions.

The security issue happens when all these conditions are met:

• The sandbox is disabled globally;
• The sandbox is enabled via a sandboxed include() function which references a template name (like included.twig) and not a Template or TemplateWrapper instance;
• The included template has been loaded before the include() call but in a non-sandbox context (possible as the sandbox has been globally disabled).

Resolution

The patch ensures that the sandbox security checks are always run at runtime.

Credits

We would like to thank Fabien Potencier for reporting and fixing the issue.

References

• GHSA-6j75-5wfj-gh66
• twigphp/Twig@11f68e2
• twigphp/Twig@2102dd1
• twigphp/Twig@7afa198

Published to the GitHub Advisory Database

Sep 9, 2024