CVE-2018-19653

MEDIUM5.9EPSS 0.43%

HashiCorp Consul can use cleartext agent-to-agent RPC communication

Published: 5/14/2022Modified: 2/4/2026

Also known as:GHSA-4qvx-qq5w-695pCGA-5cjc-7rw6-42pvDEBIAN-CVE-2018-19653GO-2023-1850

Description

HashiCorp Consul 0.5.1 through 1.4.0 can use cleartext agent-to-agent RPC communication because the `verify_outgoing` setting is improperly documented. NOTE: the vendor has provided reconfiguration steps that do not require a software upgrade.

Affected packages (3)

Debian/consulfrom 0, < 1.4.4~dfsg1-1
Go/github.com/hashicorp/consul>= 0.5.1, < 1.4.1
Go/github.com/hashicorp/consul>= 0.5.1, < 1.4.1

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	MEDIUM5.9	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

References (7)

ADVISORYhttps://github.com/advisories/GHSA-4qvx-qq5w-695p
ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2018-19653
ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2018-19653
PATCHhttps://github.com/hashicorp/consul
WEBhttps://github.com/hashicorp/consul/commit/b64e8b262f80397eab4f39c6ae7e14683cb9f55c
WEBhttps://github.com/hashicorp/consul/pull/5069
WEBhttps://groups.google.com/forum/#!topic/consul-tool/7TCw06oio0I