cve/2023/CVE-2023-2017.md

### [CVE-2023-2017](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2017)
![](https://img.shields.io/static/v1?label=Product&message=Shopware%206&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=0%3C%3D%206.4.20.0%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-1336%20Improper%20Neutralization%20of%20Special%20Elements%20Used%20in%20a%20Template%20Engine&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-184%20Incomplete%20List%20of%20Disallowed%20Inputs&color=brighgreen)

### Description

Server-side Template Injection (SSTI) in Shopware 6 (<= v6.4.20.0, v6.5.0.0-rc1 <= v6.5.0.0-rc4), affecting both shopware/core and shopware/platform GitHub repositories, allows remote attackers with access to a Twig environment without the Sandbox extension to bypass the validation checks in `Shopware\Core\Framework\Adapter\Twig\SecurityExtension` and call any arbitrary PHP function and thus execute arbitrary code/commands via usage of fully-qualified names, supplied as array of strings, when referencing callables. Users are advised to upgrade to v6.4.20.1 to resolve this issue. This is a bypass of CVE-2023-22731.

### POC

#### Reference
- https://starlabs.sg/advisories/23/23-2017/

#### Github
No PoCs found on GitHub currently.