Deserialization of Untrusted Data Affecting shopware/shopware package, versions <5.3.4


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.32% (72nd percentile)

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  • Snyk IDSNYK-PHP-SHOPWARESHOPWARE-5813987
  • published2 Aug 2023
  • disclosed24 May 2022
  • creditKarim El Ouerghemmi

Introduced: 24 May 2022

CVE-2019-12799  (opens in a new tab)
CWE-502  (opens in a new tab)

How to fix?

Upgrade shopware/shopware to version 5.3.4 or higher.

Overview

shopware/shopware is an open source e-commerce software made in Germany

Affected versions of this package are vulnerable to Deserialization of Untrusted Data. A crafted web request can trigger a PHP object instantiation vulnerability, which can result in an arbitrary deserialization if the right class is instantiated. An attacker can leverage this deserialization to achieve remote code execution.

Note:

This issue is a bypass for a CVE-2017-18357 whitelist patch.

Details

Serialization is a process of converting an object into a sequence of bytes which can be persisted to a disk or database or can be sent through streams. The reverse process of creating object from sequence of bytes is called deserialization. Serialization is commonly used for communication (sharing objects between multiple hosts) and persistence (store the object state in a file or a database). It is an integral part of popular protocols like Remote Method Invocation (RMI), Java Management Extension (JMX), Java Messaging System (JMS), Action Message Format (AMF), Java Server Faces (JSF) ViewState, etc.

Deserialization of untrusted data (CWE-502) is when the application deserializes untrusted data without sufficiently verifying that the resulting data will be valid, thus allowing the attacker to control the state or the flow of the execution.

References

CVSS Scores

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