SID 1:64412

Rule Category

SERVER-WEBAPP -- Snort has detected traffic exploiting vulnerabilities in web based applications on servers.

Alert Message

SERVER-WEBAPP NUUO NVRMini arbitrary file upload attempt

Rule Explanation

This rule looks for requests to upload arbitrary files via the "/handle_import_user.php" endpoint on NVRMini 2 devices. Attackers can utilize this endpoint to achieve remote command execution as root.

What To Look For

This rule fires on attempts to upload arbitrary files on NVRMini web servers using the "/handle_import_user.php" endpoint.

Known Usage

Attacks/Scans seen in the wild

False Positives

Known false positives, with the described conditions

This rule will fire on all attempts to upload files via the "/handle_import_user.php" endpoint on NVRMini 2 devices.

Contributors

Cisco Talos Intelligence Group

Rule Groups

Rule Categories::Server::Web Applications

MITRE::ATT&CK Framework::Enterprise::Initial Access::Exploit Public-Facing Application

Adversaries may attempt to take advantage of a weakness in an Internet-facing computer or program using software, data, or commands in order to cause unintended or unanticipated behavior. The weakness in the system can be a bug, a glitch, or a design vulnerability. These applications are often websites, but can include databases (like SQL), standard services (like SMB or SSH), network device administration and management protocols (like SNMP and Smart Install), and any other applications with Internet accessible open sockets, such as web servers and related services.

CVE

CVE-2022-23227

Additional Links

github.com/pedrib/PoC/blob/master/advisories/NUUO/nuuo_nvrmini_round2.mkd

Rule Vulnerability

N/A

Not Applicable

CVE Additional Information

This product uses data from the NVD API but is not endorsed or certified by the NVD.

CVE-2022-23227

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