CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NCVE-2021-36213
High (7.5) in hashicorp consul. EPSS 1.7% chance of exploitation in the next 30 days. Fixed in github.com/hashicorp/consul 1.10.1.
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.
Severity
- EPSS
- 1.7% chance of exploitation in the next 30 days; higher than 77% of CVEs (scores of 2026-10-31)
- Published
- Modified
- Record from
- the NVD, synced
Affected
- hashicorp:consul
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-8h2g-r292-j8xh | Go | github.com/hashicorp/consul | <1.10.1 | 1.10.1 |
| GO-2022-0895 | Go | github.com/hashicorp/consul | <1.10.1 | 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
- https://github.com/hashicorp/consul/releases/tag/v1.10.1
- https://security.gentoo.org/glsa/202208-09
- https://www.hashicorp.com/blog/category/consul
- https://discuss.hashicorp.com/t/hcsec-2021-16-consul-s-application-aware-intentions-deny-action-fails-open-when-combined-with-default-deny-policy/26855