CVEvulnerability
CVE-2021-36213
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-07-17
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:P/A:N
Description
HashiCorp Consul and Consul Enterprise 1.9.0 through 1.10.0 default deny policy with a single L7 application-aware intention deny action cancels out, causing the intention to incorrectly fail open, allowing L4 traffic. Fixed in 1.9.8 and 1.10.1.
Affected configurations
• hashicorp consul (>= 1.9.0 < 1.9.8)
• hashicorp consul (>= 1.10.0 < 1.10.1)
References
- https://discuss.hashicorp.com/t/hcsec-2021-16-consul-s-application-aware-intentions-deny-action-fails-open-when-combined-with-default-deny-policy/26855 Vendor Advisory
- https://github.com/hashicorp/consul/releases/tag/v1.10.1 Release Notes, Third Party Advisory
- https://security.gentoo.org/glsa/202208-09 Third Party Advisory
- https://www.hashicorp.com/blog/category/consul Product, Vendor Advisory
- https://discuss.hashicorp.com/t/hcsec-2021-16-consul-s-application-aware-intentions-deny-action-fails-open-when-combined-with-default-deny-policy/26855 Vendor Advisory
- https://github.com/hashicorp/consul/releases/tag/v1.10.1 Release Notes, Third Party Advisory
- https://security.gentoo.org/glsa/202208-09 Third Party Advisory
- https://www.hashicorp.com/blog/category/consul Product, Vendor Advisory