CVE-2021-41230 MEDIUM

CVE-2021-41230: OIDC claims not updated from Identity Provider in Pomerium

Vendor Pomerium
Product pomerium
Weakness CWE-863 · Incorrect authorization
Published November 5, 2021
Last update August 4, 2024

CVSS base score

5.3/10
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

What the vulnerability does

01Description

Pomerium is an open source identity-aware access proxy. In affected versions changes to the OIDC claims of a user after initial login are not reflected in policy evaluation when using `allowed_idp_claims` as part of policy. If using `allowed_idp_claims` and a user's claims are changed, Pomerium can make incorrect authorization decisions. This issue has been resolved in v0.15.6. For users unable to upgrade clear data on `databroker` service by clearing redis or restarting the in-memory databroker to force claims to be updated.

Key dates

02Disclosure timeline

November 5, 2021 CVE published
August 4, 2024 Record updated