CVE-2023-2017 Improper Control of Generation of Code in Twig Rendered Views in Shopware

High 8.8 Published Updated

Remote attackers with Twig access can bypass validation to execute arbitrary PHP code in Shopware 6.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2023-2017?

CVE-2023-2017 is a high-severity code injection vulnerability in Shopware Shopware, published on 17 Apr 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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.

Weakness: CWE-94, CWE-184, CWE-1336

Which versions are affected by CVE-2023-2017?

4 open source packages ship an affected version, including shopware/core and shopware/platform. It affects 1 product.

PackageAffectedFixed in
shopware/core PackagistAll versions6.4.20.1
shopware/core PackagistAll versions6.4.20.1
shopware/platform PackagistAll versions6.4.20.1
shopware/platform PackagistAll versions6.4.20.1

Products include Shopware Shopware.

How do I fix CVE-2023-2017?

Upgrade shopware/core to 6.4.20.1 or later.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2023-2017 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-2017 exists.

All Shopware Shopware vulnerabilities

Sources

Also known as GHSA-7v2v-9rm4-7m8f.

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