Session-only-based cookies must be enabled.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-272631 | CYLN-OP-000115 | SV-272631r1112743_rule | CCI-000166 | medium |
| Description | ||||
| Cookies must only be allowed per session and only for approved URLs, as permanently stored cookies can be used for malicious intent. Approved URLs may be allowlisted via the "CookiesAllowedForUrls" or "SaveCookiesOnExit" policy settings, but these are not requirements. | ||||
| STIG | Date | |||
| Arctic Wolf CylanceON-PREM Security Technical Implementation Guide | 2025-06-11 | |||
Details
Check Text (C-272631r1112743_chk)
Verify the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Content settings/Configure cookies" is set to "Enabled" with the option value set to "Keep cookies for the duration of the session, except ones listed in 'SaveCookiesOnExit'".
Use the Windows Registry Editor to navigate to the following key:
HKLM\SOFTWARE\Policies\Microsoft\Edge
If the value for "DefaultCookiesSetting" is not set to "REG_DWORD = 4", this is a finding.
Fix Text (F-76617r1112742_fix)
Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Content settings/Configure cookies" to "Enabled" with the option value set to "Keep cookies for the duration of the session, except ones listed in 'SaveCookiesOnExit'".