Headline
GHSA-jjxq-ff2g-95vh: Twig has unguarded calls to `__isset()` and to array-accesses when the sandbox is enabled
Description
In a sandbox, and attacker can access attributes of Array-like objects as they were not checked by the security policy.
They are now checked via the property policy and the __isset() method is now called after the security check.
This is a BC break.
Resolution
The sandbox mode now ensures access to array-like’s properties is allowed.
The patch for this issue is available here for branch 3.11.x.
Credits
We would like to thank Jamie Schouten for reporting the issue and Nicolas Grekas for providing the fix.
- GitHub Advisory Database
- GitHub Reviewed
- CVE-2024-51755
Twig has unguarded calls to `__isset()` and to array-accesses when the sandbox is enabled
Low severity GitHub Reviewed Published Nov 6, 2024 in twigphp/Twig
Package
Affected versions
< 3.11.2
>= 3.12, < 3.14.1
Patched versions
3.11.2
3.14.1
Description
In a sandbox, and attacker can access attributes of Array-like objects as they were not checked by the security policy.
They are now checked via the property policy and the __isset() method is now called after the security check.
This is a BC break.
Resolution
The sandbox mode now ensures access to array-like’s properties is allowed.
The patch for this issue is available here for branch 3.11.x.
Credits
We would like to thank Jamie Schouten for reporting the issue and Nicolas Grekas for providing the fix.
References
- GHSA-jjxq-ff2g-95vh
- twigphp/Twig@831c148
Published to the GitHub Advisory Database
Nov 6, 2024