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CVE-2021-3122 is a remote command injection vulnerability in CMCAgent in NCR Command Center Agent 16.3 deployed on Aloha POS/BOH servers. The vulnerable component accepts an XML document sent to TCP port 8089 containing a runCommand parameter. An attacker can supply an arbitrary command through this parameter and cause the agent to execute it. The execution context is SYSTEM, making this a high-impact unauthenticated remote code execution issue. The available description indicates the flaw was exploited in the wild in 2020 and/or 2021. NCR stated that exploitation requires a certain misconfiguration, but the specific misconfiguration details are not provided in the supplied content.
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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 (Ruby file) that exploits a remote code execution (RCE) vulnerability (CVE-2021-3122) in NCR Command Center Agent (CMCAgent) version 16.3, typically deployed on Aloha POS/BOH servers. The exploit targets the service listening on TCP port 8089 and abuses the 'runCommand' parameter in an XML document to execute arbitrary commands as SYSTEM, without authentication, due to a misconfiguration. The module is fully integrated with Metasploit, allowing the use of customizable payloads (defaulting to a Meterpreter reverse shell via PowerShell). The code includes a check method to detect the presence of the vulnerable service and an exploit method that crafts and sends the malicious XML payload. The repository is weaponized, operational, and intended for use within the Metasploit framework.
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