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CVE-2024-23759 is a critical insecure deserialization vulnerability in Gambio through version 4.9.2.0. The vulnerability exists in the Parcelshopfinder/AddAddressBookEntry function, specifically in ParcelshopfinderController.inc.php at line 291, where the 'search' parameter is base64-decoded and unserialized without validation. Attackers can supply crafted serialized objects, leveraging the Guzzle library as a gadget chain to achieve arbitrary file write and remote code execution on the server. The vulnerability can be exploited by unauthenticated attackers, as guest user creation is possible without solving a captcha.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module targeting CVE-2024-23759, a critical unauthenticated PHP deserialization vulnerability in Gambio Online Webshop version 4.9.2.0 and lower. The exploit works by first creating a guest user to obtain a valid session, then abusing the deserialization flaw via a crafted POST request to upload a PHP webshell. Once the webshell is in place, the attacker can execute arbitrary commands on the server via HTTP POST requests. The module supports multiple payload types, including direct PHP code execution, Unix command execution, and staged Linux payloads. The exploit is fully weaponized, leveraging Metasploit's payload and session management features. The main endpoints involved are the guest creation and address book entry endpoints, as well as the dynamically named webshell endpoint. The code is well-structured, uses Metasploit's best practices, and is suitable for both proof-of-concept and operational exploitation.
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