LSV-684: CORS should not work with Portal Session authentication

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 7.2 DXP (7.2.10)
• Fix Version/s: 7.2.X EE
• Component/s: Application Security, Security Vulnerability
• Labels:
  • liferay-dxp-72-sp4
  • liferay-fixpack-dxp-9-7210
  • liferay-fixpack-dxp-dxp-9-7210
• CVE IDs: CVE-2021-33330
• CVSS Base Score: 3.1
• CVSS Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
• 7.2 Fix Pack Version: 9

Liferay DXP 7.2 allows access to Cross-origin resource sharing (CORS) protected resources even if the user is only authenticated using the portal session authentication, which allows remote attackers to obtain sensitive information including the user email address and the current CSRF token.