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Improper Neutralization of Special Elements Used in a Template Engine

CVE-2023-2017

High
8.8/10

Summary

Server-side Template Injection (SSTI) in shopware/core versions 6.4.18.1 through 6.4.20.0, 6.5.0.0-rc1 through 6.5.0.0-rc4, and 6.5.99.99 and shopware/platform versions 6.4.18.1 through 6.4.20.0, 6.5.0.0-rc1 through 6.5.0.0-rc4, 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. This is a bypass of CVE-2023-22731.

  • LOW
  • NETWORK
  • HIGH
  • UNCHANGED
  • NONE
  • LOW
  • HIGH
  • HIGH

CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine

The product uses a template engine to insert or process externally-influenced input, but it does not neutralize or incorrectly neutralizes special elements or syntax that can be interpreted as template expressions or other code directives when processed by the engine.

References

Advisory Timeline

  • Published