CVE-2021-43998
First published: Tue Nov 30 2021(Updated: )
HashiCorp Vault and Vault Enterprise 0.11.0 up to 1.7.5 and 1.8.4 templated ACL policies would always match the first-created entity alias if multiple entity aliases exist for a specified entity and mount combination, potentially resulting in incorrect policy enforcement. Fixed in Vault and Vault Enterprise 1.7.6, 1.8.5, and 1.9.0.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| HashiCorp Vault | >=0.11.0<=1.7.5 | |
| HashiCorp Vault | >=0.11.0<=1.7.5 | |
| HashiCorp Vault | =1.8.4 | |
| HashiCorp Vault | =1.8.4 | |
| redhat/Vault | <1.7.6 | 1.7.6 |
| redhat/Vault | <1.8.5 | 1.8.5 |
| redhat/Vault | <1.9.0 | 1.9.0 |
| >=0.11.0<=1.7.5 | ||
| >=0.11.0<=1.7.5 | ||
| =1.8.4 | ||
| =1.8.4 |
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Reference Links
- https://discuss.hashicorp.com/t/hcsec-2021-30-vaults-templated-acl-policies-matched-first-created-alias-per-entity-and-auth-backend/32132
- https://security.gentoo.org/glsa/202207-01
- https://access.redhat.com/errata/RHSA-2023:2138
- https://access.redhat.com/security/cve/cve-2021-43998
- https://access.redhat.com/errata/RHSA-2023:3742
- https://bugzilla.redhat.com/show_bug.cgi?id=2028193
Frequently Asked Questions
What is the severity of CVE-2021-43998?
The severity of CVE-2021-43998 is rated as medium, indicating potential policy enforcement issues that require attention.
How do I fix CVE-2021-43998?
To fix CVE-2021-43998, upgrade HashiCorp Vault to version 1.7.6 or later, or 1.8.5 and above.
What versions of HashiCorp Vault are affected by CVE-2021-43998?
CVE-2021-43998 affects HashiCorp Vault versions from 0.11.0 to 1.7.5 and specifically version 1.8.4.
What is the impact of CVE-2021-43998?
The impact of CVE-2021-43998 may lead to incorrect policy enforcement due to template ACL policies incorrectly matching entity aliases.
Is there a workaround for CVE-2021-43998?
There is no official workaround for CVE-2021-43998, so upgrading to a patched version is recommended.
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