Related Vulnerabilities: CVE-2020-25201  

HashiCorp Consul Enterprise version 1.7.0 up to 1.8.4 allowed operators with service:write ACL permissions to write a malicious config entry that causes infinite raft writes due to issues with the namespace replication logic. This can lead to an operator with access to one namespace to be able to temporarily delete a doppelgänger configuration in another namespace they should not have access to modify.

Severity Medium

Remote Yes

Type Denial of service

Description

HashiCorp Consul Enterprise version 1.7.0 up to 1.8.4 allowed operators with service:write ACL permissions to write a malicious config entry that causes infinite raft writes due to issues with the namespace replication logic. This can lead to an operator with access to one namespace to be able to temporarily delete a doppelgänger configuration in another namespace they should not have access to modify.

AVG-1295 consul 1.7.0-1 1.8.4-1 Medium Not affected

https://github.com/hashicorp/consul/blob/master/CHANGELOG.md#185-october-23-2020
https://github.com/hashicorp/consul/pull/9024
https://github.com/hashicorp/consul/commit/58387fef0a8240d0457001bb2bac075796775e11