module

Shopware createInstanceFromNamedArguments PHP Object Instantiation RCE

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Disclosed
2019-05-09
Created
2019-05-18

Description

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 performs whitelist check which can be bypassed to trigger an object injection.

An attacker can leverage this to deserialize an arbitrary payload and write a webshell to
the target system, resulting in remote code execution.

Tested on Shopware git branches 5.6, 5.5, 5.4, 5.3.

Authors

Karim Ouerghemmi
mr_me steven@srcincite.io

Platform

PHP

Architectures

php

References

Module Options

To display the available options, load the module within the Metasploit console and run the commands ‘show options’ or ‘show advanced’:


    msf > use exploit/multi/http/shopware_createinstancefromnamedarguments_rce
    msf exploit(shopware_createinstancefromnamedarguments_rce) > show targets
        ...targets...
    msf exploit(shopware_createinstancefromnamedarguments_rce) > set TARGET < target-id >
    msf exploit(shopware_createinstancefromnamedarguments_rce) > show options
        ...show and set options...
    msf exploit(shopware_createinstancefromnamedarguments_rce) > exploit
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