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CVE-2014-8686 describes a vulnerability in CodeIgniter before 2.2.0, used in Seagate Business Storage 2-Bay NAS devices (firmware ≤2014.00319), where session cookies are encrypted using a weak, custom XOR-based scheme if the PHP Mcrypt extension is unavailable. Combined with a static session key (CVE-2014-8687), this allows attackers to decrypt, manipulate, and forge session cookies, bypassing authentication and escalating privileges to admin. The web application does not maintain server-side session state, relying solely on client-side cookies, further compounding the risk.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module (Ruby) that exploits unauthenticated remote command execution vulnerabilities (CVE-2014-8684, CVE-2014-8686, CVE-2014-8687) in Seagate Business NAS devices, specifically tested on the STBN300 model. The exploit leverages a local file inclusion vulnerability in the handling of the 'language' parameter within a CodeIgniter session cookie. By decrypting, modifying, and re-encrypting the session cookie using a known static XOR key, the attacker can escalate privileges and execute arbitrary PHP code on the device without authentication. The module is fully weaponized, supporting arbitrary payloads via the Metasploit framework, and targets the NAS web interface over HTTP. The main fingerprintable endpoints are the root web path (/) and the 'ci_session' cookie. The code is structured as a typical Metasploit exploit module, with methods for checking vulnerability, exploiting the target, and handling the custom session cookie encoding/decoding required for the attack.
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