CVE-2021-41230: OIDC claims not updated from Identity Provider in Pomerium
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 allowedidpclaims as part of policy. If using allowedidpclaims 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.
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is CVE-2021-41230?
CVE-2021-41230 is a vulnerability in Pomerium, an open source identity-aware access proxy, that allows changes to the OIDC claims of a user after initial login to not be reflected in policy evaluation when using allowed_idp_claims as part of policy.
How does CVE-2021-41230 affect Pomerium?
CVE-2021-41230 affects Pomerium by causing changes to the OIDC claims of a user to not be considered during policy evaluation when using allowed_idp_claims.
What is the severity of CVE-2021-41230?
The severity of CVE-2021-41230 is rated as high with a severity value of 8.8.
How can I mitigate CVE-2021-41230?
To mitigate CVE-2021-41230, ensure you are using Pomerium version 0.15.6 or above, as the vulnerability is fixed in this version.
Where can I find more information about CVE-2021-41230?
You can find more information about CVE-2021-41230 in the Pomerium GitHub repository and the Pomerium security advisories page.