OS Identification : HTTP

info Nessus Plugin ID 25247
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


It was possible to identify the remote operating system based on the response from the remote HTTP server.


Nessus was able to identify the remote operating system type and version by examining the data returned by the remote HTTP server.

Plugin Details

Severity: Info

ID: 25247

File Name: os_fingerprint_http.nasl

Version: 1.200

Type: remote

Family: General

Published: 5/19/2007

Updated: 9/13/2021

Dependencies: find_service1.nasl, distro_guess.nasl

Asset Inventory: true

OS Identification: true