CVE-2020-7942

Description

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

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.12%
Vendor Advisory puppet.com
Affected: Puppet Puppet
Affected: Puppet Puppet Agent
Published at:
Updated at:

References

Link Tags
https://puppet.com/security/cve/CVE-2020-7942/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-7942?
CVE-2020-7942 has been scored as a medium severity vulnerability.
How to fix CVE-2020-7942?
To fix CVE-2020-7942, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-7942 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-7942 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-7942?
CVE-2020-7942 affects Puppet Puppet, Puppet Puppet Agent.
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