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CVE-2021-26914 is a critical remote code execution vulnerability in NetMotion Mobility Server (prior to 11.73 and 12.x before 12.02), specifically in the MvcUtil class. The vulnerability arises from unsafe Java deserialization in the valueStringToObject method, which processes user-supplied data without proper validation. This allows unauthenticated remote attackers to send crafted serialized objects, leading to arbitrary code execution as SYSTEM on the affected server.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module targeting an unauthenticated Java deserialization vulnerability (CVE-2021-26914) in NetMotion Mobility Server (versions 11.x before 11.73 and 12.x before 12.02) on Windows. The exploit abuses the /mobility/Menu/isLoggedOn HTTP(S) endpoint to send a malicious serialized Java object, resulting in remote code execution as SYSTEM. The module supports multiple payload types, including command execution, dropper, and PowerShell stager, and can deliver Meterpreter or reverse shell sessions. The exploit is weaponized, highly reliable, and does not require authentication. Artifacts may be left in the NetMotion Server logs or on disk. The code is written in Ruby and is structured as a standard Metasploit exploit module.
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