IIST-SI-000246 - Cookies exchanged between the IIS 10.0 website and the client must have cookie properties set to prohibit client-side scripts from reading the cookie data - compressionEnabled

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A cookie can be read by client-side scripts easily if cookie properties are not set properly. By allowing cookies to be read by the client-side scripts, information such as session identifiers could be compromised and used by an attacker who intercepts the cookie. Setting cookie properties (i.e., HttpOnly property) to disallow client-side scripts from reading cookies better protects the information inside the cookie.

Satisfies: SRG-APP-000439-WSR-000154, SRG-APP-000439-SSR-000155, SRG-APP-000439-WSR-000153


Note: If the server being reviewed is a public IIS 10.0 web server, this is Not Applicable.

Follow the procedures below for each site hosted on the IIS 10.0 web server:

Access the IIS 10.0 Manager.
Under 'Management' section, double-click the 'Configuration Editor' icon.
From the 'Section:' drop-down list, select 'system.web/httpCookies'.
Set the 'require SSL' to 'True'.

From the 'Section:' drop-down list, select 'system.web/sessionState'.
Set the 'compressionEnabled' to 'False'.

Select 'Apply' from the 'Actions' pane.

See Also


Item Details

References: CAT|II, CCI|CCI-002418, Rule-ID|SV-218770r558649_rule, STIG-ID|IIST-SI-000246, STIG-Legacy|SV-109365, STIG-Legacy|V-100261, Vuln-ID|V-218770

Plugin: Windows

Control ID: deba925bb2d3e4662d4259199efe50fa18f7862ed100b8412b9b5cc0710754e6