Vulnerabilities

A user with specific node group editing permissions and a specially crafted class parameter could be used to execute commands as root on the primary host. It affects Puppet Enterprise versions 2018.1.8 through 2023.8.3 and 2025.3 and has been resolved in versions 2023.8.4 and 2025.4.0.

Versions of Puppet Enterprise prior to 2021.7.6 and 2023.5 contain a flaw which results in broken session management for SAML implementations.

In Puppet Bolt versions prior to 3.27.4, a path to escalate privileges was identified.

For certificates that utilize the auto-renew feature in Puppet Server, a flaw exists which prevents the certificates from being revoked.

A privilege escalation allowing remote code execution was discovered in the orchestration service.

A Regular Expression Denial of Service (ReDoS) issue was discovered in Puppet Server 7.9.2 certificate validation. An issue related to specifically crafted certificate names significantly slowed down server operations.

Command injection is possible in the puppetlabs-apt module prior to version 9.0.0. A malicious actor is able to exploit this vulnerability only if they are able to provide unsanitized input to the module. This condition is rare in most deployments of Puppet and Puppet Enterprise.

In certain situations it is possible for an unmanaged rule to exist on the target system that has the same comment as the rule specified in the manifest. This could allow for unmanaged rules to exist on the target system and leave the system in an unsafe state.

A flaw was discovered in Puppet Agent where the agent may silently ignore Augeas settings or may be vulnerable to a Denial of Service condition prior to the first 'pluginsync'.

A flaw was discovered in Continuous Delivery for Puppet Enterprise (CD4PE) that results in a user with lower privileges being able to access a Puppet Enterprise API token. This issue is resolved in CD4PE 4.10.0

A flaw was discovered in Puppet Agent and Puppet Server that may result in a leak of HTTP credentials when following HTTP redirects to a different host. This is similar to CVE-2018-1000007

A flaw was discovered in bolt-server and ace where running a task with sensitive parameters results in those sensitive parameters being logged when they should not be. This issue only affects SSH/WinRM nodes (inventory service nodes).

Puppet Enterprise presented a security risk by not sanitizing user input when doing a CSV export.

The mechanism which performs certificate validation was discovered to have a flaw that resulted in certificates signed by an internal certificate authority to not be properly validated. This issue only affects clients that are configured to utilize Tenable.sc as the vulnerability data source.

A flaw was discovered in Puppet DB, this flaw results in an escalation of privileges which allows the user to delete tables via an SQL query.

Local registry credentials were included directly in the CD4PE deployment definition, which could expose these credentials to users who should not have access to them. This is resolved in Continuous Delivery for Puppet Enterprise 4.0.1.

In Continuous Delivery for Puppet Enterprise (CD4PE) before 3.4.0, changes to resources or classes containing Sensitive parameters can result in the Sensitive parameters ending up in the impact analysis report.

Puppet Server and PuppetDB provide useful performance and debugging information via their metrics API endpoints. For PuppetDB this may contain things like hostnames. Puppet Server reports resource names and titles for defined types (which may contain sensitive information) as well as function names and class names. Previously, these endpoints were open to the local network. PE 2018.1.13 & 2019.5.0, Puppet Server 6.9.2 & 5.3.12, and PuppetDB 6.9.1 & 5.2.13 disable trapperkeeper-metrics /v1 metrics API and only allows /v2 access on localhost by default. This affects software versions: Puppet Enterprise 2018.1.x stream prior to 2018.1.13 Puppet Enterprise prior to 2019.5.0 Puppet Server prior to 6.9.2 Puppet Server prior to 5.3.12 PuppetDB prior to 6.9.1 PuppetDB prior to 5.2.13 Resolved in: Puppet Enterprise 2018.1.13 Puppet Enterprise 2019.5.0 Puppet Server 6.9.2 Puppet Server 5.3.12 PuppetDB 6.9.1 PuppetDB 5.2.13

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

Previous versions of Puppet Agent didn't verify the peer in the SSL connection prior to downloading the CRL. This issue is resolved in Puppet Agent 6.4.0.

When using the cd4pe::root_configuration task to configure a Continuous Delivery for PE installation, the root user’s username and password were exposed in the job’s Job Details pane in the PE console. These issues have been resolved in version 1.2.1 of the puppetlabs/cd4pe module.

The express install, which is the suggested way to install Puppet Enterprise, gives the user a URL at the end of the install to set the admin password. If they do not use that URL, there is an overlooked default password for the admin user. This was resolved in Puppet Enterprise 2019.0.3 and 2018.1.9.

Prior to version 0.3.0, chloride's use of net-ssh resulted in host fingerprints for previously unknown hosts getting added to the user's known_hosts file without confirmation. In version 0.3.0 this is updated so that the user's known_hosts file is not updated by chloride.

Previously, Puppet Discovery was shipped with a default generated TLS certificate in the nginx container. In version 1.4.0, a unique certificate will be generated on installation or the user will be able to provide their own TLS certificate for ingress.

Previous releases of the Puppet cisco_ios module output SSH session debug information including login credentials to a world readable file on every run. These issues have been resolved in the 0.4.0 release.

Previous releases of the Puppet cisco_ios module did not validate a host's identity before starting a SSH connection. As of the 0.4.0 release of cisco_ios, host key checking is enabled by default.

Previous releases of the Puppet device_manager module creates configuration files containing credentials that are world readable. This issue has been resolved as of device_manager 2.7.0.

When users are configured to use startTLS with RBAC LDAP, at login time, the user's credentials are sent via plaintext to the LDAP server. This affects Puppet Enterprise 2018.1.3, 2017.3.9, and 2016.4.14, and is fixed in Puppet Enterprise 2018.1.4, 2017.3.10, and 2016.4.15. It scored an 8.5 CVSS score.

In Puppet Discovery prior to 1.2.0, when running Discovery against Windows hosts, WinRM connections can fall back to using basic auth over insecure channels if a HTTPS server is not available. This can expose the login credentials being used by Puppet Discovery.

On Windows only, with a specifically crafted configuration file an attacker could get Puppet PE client tools (aka pe-client-tools) 16.4.x prior to 16.4.6, 17.3.x prior to 17.3.6, and 18.1.x prior to 18.1.2 to load arbitrary code with privilege escalation.

Puppet Enterprise 2016.4.x prior to 2016.4.12, Puppet Enterprise 2017.3.x prior to 2017.3.7, Puppet Enterprise 2018.1.x prior to 2018.1.1, Puppet Agent 1.10.x prior to 1.10.13, Puppet Agent 5.3.x prior to 5.3.7, and Puppet Agent 5.5.x prior to 5.5.2, were vulnerable to an attack where an unprivileged user on Windows agents could write custom facts that can escalate privileges on the next puppet run. This was possible through the loading of shared libraries from untrusted paths.

The previous version of Puppet Enterprise 2018.1 is vulnerable to unsafe code execution when upgrading pe-razor-server. Affected releases are Puppet Enterprise: 2018.1.x versions prior to 2018.1.1 and razor-server and pe-razor-server prior to 1.9.0.0.

A cross-site scripting vulnerability in Puppet Enterprise Console of Puppet Enterprise allows a user to inject scripts into the Puppet Enterprise Console when using the Puppet Enterprise Console. Affected releases are Puppet Puppet Enterprise: 2017.3.x versions prior to 2017.3.6.

Puppet Enterprise 2017.3.x prior to 2017.3.3 are vulnerable to a remote execution bug when a specially crafted string was passed into the facter_task or puppet_conf tasks. This vulnerability only affects tasks in the affected modules, if you are not using puppet tasks you are not affected by this vulnerability.

In previous versions of Puppet Agent it was possible for the agent to retrieve facts from an environment that it was not classified to retrieve from. This was resolved in Puppet Agent 5.3.4, included in Puppet Enterprise 2017.3.4

Puppet Enterprise versions prior to 2016.4.5 and 2017.2.1 did not correctly authenticate users before returning labeled RBAC access tokens. This issue has been fixed in Puppet Enterprise 2016.4.5 and 2017.2.1. This only affects users with labeled tokens, which is not the default for tokens.

Versions of Puppet Agent prior to 1.6.0 included a version of the Puppet Execution Protocol (PXP) agent that passed environment variables through to Puppet runs. This could allow unauthorized code to be loaded. This bug was first introduced in Puppet Agent 1.3.0.

Puppet Enterprise 2015.3.3 and 2016.x before 2016.4.0, and Puppet Agent 1.3.6 through 1.7.0 allow remote attackers to bypass a host whitelist protection mechanism and execute arbitrary code on Puppet nodes via vectors related to command validation, aka "Puppet Execution Protocol (PXP) Command Whitelist Validation Vulnerability."

Versions of the puppetlabs-apache module prior to 1.11.1 and 2.1.0 make it very easy to accidentally misconfigure TLS trust. If you specify the `ssl_ca` parameter but do not specify the `ssl_certs_dir` parameter, a default will be provided for the `ssl_certs_dir` that will trust certificates from any of the system-trusted certificate authorities. This did not affect FreeBSD.

The console in Puppet Enterprise 2015.x and 2016.x prior to 2016.4.0 includes unsafe string reads that potentially allows for remote code execution on the console node.

Nginx versions since 0.5.6 up to and including 1.13.2 are vulnerable to integer overflow vulnerability in nginx range filter module resulting into leak of potentially sensitive information triggered by specially crafted request.