CVE-2021-41230
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.86%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.86% probability · 56th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-863
- Affected
- pomerium/pomerium
- Source
- security-advisories@github.com
References
- https://github.com/pomerium/pomerium/pull/2724Patch, Third Party Advisory
- https://github.com/pomerium/pomerium/security/advisories/GHSA-j6wp-3859-vxfgThird Party Advisory
- https://github.com/pomerium/pomerium/pull/2724Patch, Third Party Advisory
- https://github.com/pomerium/pomerium/security/advisories/GHSA-j6wp-3859-vxfgThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.