Vulnerability Details : CVE-2021-36213
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.
Products affected by CVE-2021-36213
- cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:*
- cpe:2.3:a:hashicorp:consul:*:*:*:*:-:*:*:*
- cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:*
- cpe:2.3:a:hashicorp:consul:*:*:*:*:-:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-36213
1.71%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 81 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-36213
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
3.9
|
3.6
|
NIST |
References for CVE-2021-36213
-
https://security.gentoo.org/glsa/202208-09
HashiCorp Consul: Multiple Vulnerabilities (GLSA 202208-09) — Gentoo securityThird Party Advisory
-
https://www.hashicorp.com/blog/category/consul
HashiCorp Blog: ConsulProduct;Vendor Advisory
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https://discuss.hashicorp.com/t/hcsec-2021-16-consul-s-application-aware-intentions-deny-action-fails-open-when-combined-with-default-deny-policy/26855
HCSEC-2021-16 Consul’s Application-Aware Intentions Deny Action Fails Open When Combined With Default Deny Policy - Security - HashiCorp DiscussVendor Advisory
-
https://github.com/hashicorp/consul/releases/tag/v1.10.1
Release v1.10.1 · hashicorp/consul · GitHubRelease Notes;Third Party Advisory
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