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CVE-2020-8518 is a critical remote code execution vulnerability in Horde Groupware Webmail Edition 5.2.22, specifically in the Data library's CSV import functionality. The vulnerability arises from the unsafe use of PHP's create_function with user-supplied input, allowing authenticated users to inject arbitrary PHP code via the 'quote' parameter during CSV import. This affects multiple Horde applications, including Turba, Mnemo, Nag, and Kronolith, and enables code execution as the web server user.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).
This repository contains a single Metasploit module (modules/exploits/multi/http/horde_csv_rce.rb) that exploits CVE-2020-8518, a remote code execution vulnerability in the Horde Groupware web application (version 5.2.22 and earlier) via the Horde_Data module (version 2.1.4 and earlier). The exploit requires valid user credentials and works by uploading a specially crafted CSV file and then triggering PHP code execution through a manipulated import process. The module is written in Ruby and leverages Metasploit's payload system to inject arbitrary PHP code, providing the attacker with remote code execution capabilities. The main endpoints targeted are /login.php for authentication and /mnemo/data.php for both file upload and code execution. The exploit is weaponized, as it is fully integrated into the Metasploit framework and supports customizable payloads.
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