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
{
"cpe": [
"cpe:2.3:a:puppet:puppet:*:*:*:*:*:*:*:*",
"cpe:2.3:a:puppet:puppet_agent:*:*:*:*:*:*:*:*"
],
"extracted_events": [
{
"introduced": "5.5.0"
},
{
"fixed": "5.5.19"
},
{
"introduced": "6.0.0"
},
{
"fixed": "6.13.0"
}
],
"source": "CPE_RANGE"
}