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Files from Karim Ouerghemmi

Shopware createInstanceFromNamedArguments PHP Object Instantiation

Posted May 22, 2019

Authored by mr_me, Karim Ouerghemmi | Site metasploit.com

This Metasploit module exploits a php object instantiation vulnerability that can lead to remote code execution 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.

tags | exploit, remote, arbitrary, php, code execution

advisories | CVE-2017-18357

SHA-256 | 663b17e7e771b4cd3b76f4e9be53f77eb788f99d74c6047ec270aeb991f94fd8

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