Puppet Enterprise 2021.7.1 / 2023.0 DoS

medium Nessus Plugin ID 184140


An instance of Puppet Enterprise installed on the remote system is affected by a denial of service vulnerability.


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.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Upgrade to Puppet Enterprise version 2021.7.3, 2023.1, or later.

See Also


Plugin Details

Severity: Medium

ID: 184140

File Name: puppet_enterprise_CVE-2023-1894.nasl

Version: 1.1

Type: local

Agent: unix

Family: Misc.

Published: 11/1/2023

Updated: 11/2/2023

Supported Sensors: Nessus Agent, Nessus

Risk Information


Risk Factor: Low

Score: 1.4


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2023-1894


Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:puppetlabs:puppet_enterprise

Required KB Items: installed_sw/puppet_enterprise_console

Exploit Ease: No known exploits are available

Patch Publication Date: 5/2/2023

Vulnerability Publication Date: 5/2/2023

Reference Information

CVE: CVE-2023-1894