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CVE-2019-1620 is a critical vulnerability in the web-based management interface of Cisco Data Center Network Manager (DCNM) versions 11.1(1) and below. Due to incorrect permission settings and lack of authentication in the file upload servlet, an unauthenticated remote attacker can upload arbitrary files to the affected device. This includes the ability to upload a malicious WAR file to the Tomcat webapps directory, resulting in remote code execution as root. The vulnerability affects both the virtual appliance and installations on Windows and Red Hat Linux.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module (modules/exploits/multi/http/cisco_dcnm_upload_2019.rb) that exploits multiple vulnerabilities in Cisco Data Center Network Manager (DCNM) to achieve unauthenticated remote code execution. The exploit targets the /fm/fileUpload servlet, allowing an attacker to upload a malicious WAR file to the Tomcat webapps directory. It leverages CVE-2019-1619 for authentication bypass (on versions 10.4(2) and below), CVE-2019-1620 for the file upload, and CVE-2019-1622 for information disclosure to determine the correct upload path. The module supports targeting DCNM versions 10.4(2), 11.0(1), and 11.1(1), with authentication required only for 11.0(1). The exploit is weaponized, allowing the attacker to specify a Metasploit payload (such as a reverse shell) that will be executed as root on the target system. The module interacts with several HTTP endpoints for detection, authentication, log retrieval, and payload deployment. The code is written in Ruby and is structured as a standard Metasploit exploit module.
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