Cookies exchanged between the web server and the client, such as session cookies, must have cookie properties set to prohibit client-side scripts from reading the cookie data.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-206437	SRG-APP-000439-WSR-000154	SV-206437r879810_rule		Medium

Description
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.

Description

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.

STIG	Date
Web Server Security Requirements Guide	2023-09-13

Details

Check Text ( C-6698r377903_chk )
Review the web server documentation and deployed configuration to determine how to disable client-side scripts from reading cookies. If the web server is not configured to disallow client-side scripts from reading cookies, this is a finding.

Fix Text (F-6698r377904_fix)
Configure the web server to disallow client-side scripts the capability of reading cookie information.