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CVE-2019-7256 is an operating system command injection vulnerability in Nice Linear eMerge E3-Series access control systems. A vulnerable card-scan decoding endpoint allows unauthenticated remote attackers to inject operating system commands, potentially achieving remote code execution and full access to the affected system. The vulnerability has been exploited in the wild, including in Ngioweb and ClingSTUN malware campaigns.
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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 targeting CVE-2019-7256, a command injection vulnerability in the Linear eMerge E3-Series Access Controller (versions 1.00-06 and below). The exploit leverages unauthenticated command injection in the 'card_scan_decoder.php' endpoint via the 'No' and 'door' HTTP GET parameters. The module supports two main payload types: direct command execution (e.g., reverse bash shell) and a Linux dropper for deploying a Meterpreter reverse shell (ARMLE architecture). The exploit executes commands as root, requiring the default root password ('davestyle') unless changed. The module includes a check method to verify vulnerability by timing a sleep command. The code is written in Ruby and is structured as a standard Metasploit exploit module, making it weaponized and easily customizable for attackers. The only fingerprintable endpoint is the '/card_scan_decoder.php' path, which is the target of the injection.
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5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A command injection vulnerability in Linear eMerge's card_scan_decoder.php endpoint, used as an entry point for ClingSTUN.
Command injection in Linear eMerge's card_scan_decoder.php endpoint, used to distribute ClingSTUN.
An unauthenticated OS command injection vulnerability in Linear eMerge E3-Series devices that Ngioweb operators actively scan for and exploit to deliver payloads.
A critical OS command injection vulnerability in Nice Linear eMerge E3-Series access control systems that can enable remote code execution and full system access. The report describes active exploitation targeting systems used in commercial and industrial environments worldwide.
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Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.