CVE-2021-36213

July 29, 2021

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.

Summary:

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.

Reference Links(if available):

  • https://www.hashicorp.com/blog/category/consul
  • https://github.com/hashicorp/consul/releases/tag/v1.10.1
  • https://discuss.hashicorp.com/t/hcsec-2021-16-consul-s-application-aware-intentions-deny-action-fails-open-when-combined-with-default-deny-policy/26855

  • CVSS Score (if available)

    v2: / MEDIUM

    v3: /

    Links to Exploits(if available)

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