Title

Session only-based cookies must be enabled. (Cat II impact)

Discussion

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.

Check Content

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

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'".

Additional Identifiers

Rule ID: SV-260467r951025_rule

Vulnerability ID: V-260467

Group Title: SRG-APP-000080

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.