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Improper Control of Generation of Code in Twig rendered views

High severity GitHub Reviewed Published Apr 17, 2023 in shopware/shopware • Updated Apr 28, 2023

Package

composer shopware/core (Composer)

Affected versions

<= 6.4.20.0

Patched versions

6.4.20.1
composer shopware/platform (Composer)
<= 6.4.20.0
6.4.20.1

Description

Impact

We fixed with CVE-2023-22731 Twig filters to only be executed with allowed functions. It is possible to pass PHP Closures as string or an array and array crafted PHP Closures was not checked against allow list

Patches

The problem has been fixed with 6.4.20.1 with an improved override.

Workarounds

For older versions of 6.1, 6.2, and 6.3, corresponding security measures are also available via a plugin. For the full range of functions, we recommend updating to the latest Shopware version.

References

https://docs.shopware.com/en/shopware-6-en/security-updates/security-update-04-2023?category=security-updates

References

@shyim shyim published to shopware/shopware Apr 17, 2023
Published by the National Vulnerability Database Apr 17, 2023
Published to the GitHub Advisory Database Apr 18, 2023
Reviewed Apr 18, 2023
Last updated Apr 28, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS score

1.301%
(86th percentile)

Weaknesses

CVE ID

CVE-2023-2017

GHSA ID

GHSA-7v2v-9rm4-7m8f

Source code

Credits

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