CVE-2023-2816: Consul Envoy Extension Downsteam Proxy Configuration By Upstream Service Owner
Consul and Consul Enterprise allowed any user with service:write permissions to use Envoy extensions configured via service-defaults to patch remote proxy instances that target the configured service, regardless of whether the user has permission to modify the service(s) corresponding to those modified proxies.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2023-2816?
CVE-2023-2816 is a vulnerability in Consul and Consul Enterprise that allowed any user with service:write permissions to use Envoy extensions to patch remote proxy instances targeting a configured service, regardless of their permission to modify the service.
What is the severity of CVE-2023-2816?
The severity of CVE-2023-2816 is rated as high, with a severity value of 6.5.
What software versions are affected by CVE-2023-2816?
CVE-2023-2816 affects HashiCorp Consul versions between 1.15.0 and 1.15.3, including both the open-source version and Enterprise edition.
How can I fix CVE-2023-2816?
To fix CVE-2023-2816, update to a version of HashiCorp Consul that is not vulnerable (version 1.15.4 or newer).
Where can I find more information about CVE-2023-2816?
You can find more information about CVE-2023-2816 on the HashiCorp discussion forum: <a href='https://discuss.hashicorp.com/t/hcsec-2023-16-consul-envoy-extension-downstream-proxy-configuration-by-upstream-service-owner/54525'>https://discuss.hashicorp.com/t/hcsec-2023-16-consul-envoy-extension-downstream-proxy-configuration-by-upstream-service-owner/54525</a>.