CVE-2019-12799 : In createInstanceFromNamedArguments in Shopware through 5.6.x, a crafted web req

In createInstanceFromNamedArguments in Shopware through 5.6.x, 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.

Published 2019-06-13 20:29:00

Updated 2024-01-09 02:24:49

Source MITRE

View at NVD, CVE.org

Vulnerability category: Execute code

Products affected by CVE-2019-12799

Shopware » Shopware
Versions up to, including, (<=) 5.6.0
cpe:2.3:a:shopware:shopware:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2019-12799

EPSS FAQ

30.02%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 96 %

Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2019-12799

Shopware createInstanceFromNamedArguments PHP Object Instantiation RCE

Disclosure Date: 2019-05-09

First seen: 2020-04-26

exploit/multi/http/shopware_createinstancefromnamedarguments_rce

This module exploits a php object instantiation vulnerability that can lead to RCE in Shopware. An authenticated backend user could exploit the vulnerability. The vulnerability exists in the createInstanceFromNamedArguments function, where the code insufficiently pe

More information

CVSS scores for CVE-2019-12799

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
6.5	MEDIUM	AV:N/AC:L/Au:S/C:P/I:P/A:P	8.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
6.5	MEDIUM	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	2.8	3.6	MITRE
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: None
8.8	HIGH	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	2.8	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
8.8	HIGH	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	2.8	5.9	NIST	2024-01-09
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2019-12799

CWE-502 Deserialization of Untrusted Data

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2019-12799

https://github.com/rapid7/metasploit-framework/pull/11828

Added CVE-2017 18357 - Shopware createInstanceFromNamedArguments PHP Object Instantiation by stevenseeley · Pull Request #11828 · rapid7/metasploit-framework · GitHub
Issue Tracking;Patch;Third Party Advisory

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