Previously, Puppet operated on a model that a node with a valid certificate was entitled to all information in the system and that a compromised certificate allowed access to everything in the infrastructure. When a node's catalog falls back to the `default` node, the catalog can be retrieved for a different node by modifying facts for the Puppet run. This issue can be mitigated by setting `strict_hostname_checking = true` in `puppet.conf` on your Puppet master. Puppet 6.13.0 and 5.5.19 changes the default behavior for strict_hostname_checking from false to true. It is recommended that Puppet Open Source and Puppet Enterprise users that are not upgrading still set strict_hostname_checking to true to ensure secure behavior. Affected software versions: Puppet 6.x prior to 6.13.0 Puppet Agent 6.x prior to 6.13.0 Puppet 5.5.x prior to 5.5.19 Puppet Agent 5.5.x prior to 5.5.19 Resolved in: Puppet 6.13.0 Puppet Agent 6.13.0 Puppet 5.5.19 Puppet Agent 5.5.19
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: puppet

Published: 2020-02-19T20:52:03

Updated: 2024-08-04T09:48:24.553Z

Reserved: 2020-01-23T00:00:00

Link: CVE-2020-7942

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2020-02-19T21:15:11.747

Modified: 2021-12-30T13:33:51.290

Link: CVE-2020-7942

cve-icon Redhat

Severity : Moderate

Publid Date: 2020-02-18T00:00:00Z

Links: CVE-2020-7942 - Bugzilla