Server header exposes version information


The target website returns the Server header and version information of this website. By exposing these values, attackers may attempt to identify if the target software is vulnerable to known vulnerabilities, or catalog known sites running particular versions to exploit in the future when a vulnerability is identified in the particular version.


We recommend that the version information be removed from the Server header.

Apache: For Apache based web sites, set the ServerTokens to Prod in the httpd.conf configuration file.

NGINX: For NGINX based websites, set the server_tokens configuration value to off in the nginx.conf file.

IIS: For IIS-based websites version 10 and later, you can use the removeServerHeader element to the requestFiltering section of the Web.config file.

For all other server types, please consult your product’s documentation on how to redact the version information from the Server header.


ID Aggregated CWE Type Risk
16.2 true 16 Passive Low