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diff --git a/doc/user/application_security/dast/checks/16.2.md b/doc/user/application_security/dast/checks/16.2.md new file mode 100644 index 00000000000..95461e8677d --- /dev/null +++ b/doc/user/application_security/dast/checks/16.2.md @@ -0,0 +1,44 @@ +--- +stage: Secure +group: Dynamic Analysis +info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments +--- + +# Server header exposes version information + +## Description + +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. + +## Remediation + +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 above 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. + +## Details + +| ID | Aggregated | CWE | Type | Risk | +|:---|:--------|:--------|:--------|:--------| +| 16.2 | true | 16 | Passive | Low | + +## Links + +- [cwe](https://cwe.mitre.org/data/definitions/16.html) +- [Apache ServerTokens](https://blog.mozilla.org/security/2016/08/26/mitigating-mime-confusion-attacks-in-firefox/) +- [NGINX server_tokens](https://nginx.org/en/docs/http/ngx_http_core_module.html#server_tokens) +- [IIS 10 Remove Server Header](https://docs.microsoft.com/en-us/iis/configuration/system.webserver/security/requestfiltering/#attributes) |