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-206437r961632_rule | CCI-002418 | 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. | ||||
| STIG | Date | |||
| Web Server Security Requirements Guide | 2025-02-12 | |||
Details
Check Text (C-206437r961632_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.