Puppet Enterprise before 3.0.1 does not use a session timeout, which makes it easier for attackers to gain privileges by leveraging an unattended workstation.

Puppet Enterprise before 3.0.1 uses HTTP responses that contain sensitive information without the "no-cache" setting, which might allow local users to obtain sensitive information such as (1) host name, (2) MAC address, and (3) SSH keys via the web browser cache.

Puppet Enterprise before 3.0.1 includes version information for the Apache and Phusion Passenger products in its HTTP response headers, which allows remote attackers to obtain sensitive information.

The reset password page in Puppet Enterprise before 3.0.1 does not force entry of the current password, which allows attackers to modify user passwords by leveraging session hijacking, an unattended workstation, or other vectors.

Puppet Enterprise before 3.0.1 does not set the secure flag for the session cookie in an https session, which makes it easier for remote attackers to capture this cookie by intercepting its transmission within an http session.

Puppet Enterprise before 3.1.0 does not properly restrict the number of authentication attempts by a console account, which makes it easier for remote attackers to bypass intended access restrictions via a brute-force attack.

Puppet Enterprise before 3.0.1 allows remote attackers to obtain the database password via vectors related to how the password is "seeded as a console parameter," External Node Classifiers, and the lack of access control for /nodes.

puppet: Puppet Server ReDoS

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.

Broken Session Management in Puppet Enterprise

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

A flaw was divered in Puppet Enterprise and other Puppet products where sensitive plan parameters may be logged

puppet: silent configuration failure in agent

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'.

puppet: unsafe HTTP redirect

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: SQL injection

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.

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

PuppetDB logging included potentially sensitive system information.

puppet: puppet server and puppetDB may leak sensitive information via metrics API

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

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.

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.