HashiCorp Consul vulnerable to Origin Validation Error
Date: 2022-05
Affected: go/github.com/hashicorp/consul
Attack vector: other
Category: vulnerability-disclosure
Severity: High
CVE: CVE-2019-9764
CWE: CWE-346
CVSS: 7.4 (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)

HashiCorp Consul 1.4.3 lacks server hostname verification for agent-to-agent TLS communication. In other words, the product behaves as if `verify_server_hostname` were set to false, even when it is actually set to true. This is fixed in 1.4.4.


Mitigations:

Architectural layers (MAESTRO):