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CVE-2023-27253 is a command injection vulnerability in Netgate pfSense v2.7.0, specifically in the restore_rrddata() function. Authenticated attackers can exploit this by manipulating the contents of an XML file (config.xml) supplied to the component, leading to arbitrary command execution on the system.
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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/unix/http/pfsense_config_data_exec.rb) that exploits an authenticated command injection vulnerability (CVE-2023-27253) in pfSense firewalls prior to version 2.7.0. The exploit targets the 'restore_rrddata()' function accessible via the web interface's backup/restore feature. An attacker with valid credentials and the appropriate privilege can execute arbitrary commands as root by abusing the configuration restore process. The module handles authentication, CSRF token extraction, version detection, and payload delivery via crafted multipart POST requests to the /diag_backup.php endpoint. The exploit leverages Metasploit's command stager to deliver payloads such as reverse shells. The code is operational and provides root command execution on vulnerable pfSense systems. The only endpoints involved are the pfSense web interface's /index.php (for login and version check) and /diag_backup.php (for exploitation).
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