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.

Published: Jul 17, 2021
Updated: May 9, 2024
CVE: CVE-2021-36213
GHSA: GHSA-8h2g-r292-j8xh
Severity: High
Exploit:

CVSS v3:

Severity: High
Score: 7.5
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS v2:

Severity: Medium
Score: 5
AV:N/AC:L/Au:N/C:N/I:P/A:N

No CWE or OWASP classifications available.

Affected Software
References

Software	From	Fixed in
hashicorp / consul	1.10.0	1.10.1
hashicorp / consul	1.9.0	1.9.8
github.com/hashicorp/consul	-	1.10.1

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

Vulnerability Database

CVE-2021-36213

Deep Security Visibility Without the Complexity