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CVE-2020-3243 is a critical remote code execution vulnerability in Cisco UCS Director's Cloupia Script Interpreter, specifically affecting version 6.7.3.0 for VMware. The vulnerability arises from improper authentication checks and directory traversal flaws in the REST API endpoints, particularly in the com.cloupia.client.web.auth.urlfilter.RESTUrlRewriteFilter and com.cloupia.client.web.RestAPI classes. An unauthenticated attacker can exploit these weaknesses to create arbitrary directories, leak the admin REST API key from log files, and ultimately execute arbitrary code as root on the target system via the generalActions endpoint. The exploit chain does not require prior authentication due to flaws in the isEnableRestKeyAccessCheckForUser logic.
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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 file) that exploits multiple vulnerabilities in Cisco UCS Director versions prior to 6.7.4.0. The exploit leverages an authentication bypass (CVE-2020-3243) and directory traversal (CVE-2020-3250) to leak the administrator's REST API key and then execute arbitrary commands as root via the Cloupia script interpreter. The module supports both command execution and staged payloads (reverse shell, Meterpreter) and is highly weaponized, allowing for easy payload customization through Metasploit. The main attack vector is network-based, targeting the HTTPS management interface of Cisco UCS Director. The module interacts with several HTTP endpoints and manipulates file paths on the target system to achieve code execution. The repository is structured as a single exploit file, typical for Metasploit modules, and is intended for use within the Metasploit Framework.
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