Upstream information

CVE-2020-7942 at MITRE

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

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 4
Vector AV:N/AC:L/Au:S/C:P/I:N/A:N
Access Vector Network
Access Complexity Low
Authentication Single
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 6.5 6.5
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network Network
Attack Complexity Low Low
Privileges Required Low Low
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High High
Integrity Impact None None
Availability Impact None None
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1167645 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Module for Advanced Systems Management 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server 12 SP3
SUSE Linux Enterprise Server 12 SP4
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server for SAP Applications 12 SP3
SUSE Linux Enterprise Server for SAP Applications 12 SP4
SUSE Linux Enterprise Server for SAP Applications 12 SP5
  • puppet >= 3.8.5-15.12.1
  • puppet-server >= 3.8.5-15.12.1
Patchnames:
SUSE-SLE-Module-Adv-Systems-Management-12-2020-1057


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise High Performance Computing 12 puppet Released
SUSE Linux Enterprise Module for Advanced Systems Management 12 puppet Released
SUSE Linux Enterprise Server 12 SP5 puppet Released
SUSE Linux Enterprise Server for SAP Applications 12 SP5 puppet Released
Products past their end of life and not receiving proactive updates anymore.
SUSE Linux Enterprise Desktop 12 puppet Affected
SUSE Linux Enterprise Desktop 12 SP1 puppet Affected
SUSE Linux Enterprise Desktop 12 SP2 puppet Affected
SUSE Linux Enterprise Desktop 12 SP3 puppet Affected
SUSE Linux Enterprise Desktop 12 SP4 puppet Affected
SUSE Linux Enterprise Point of Service 11 SP3 puppet Unsupported
SUSE Linux Enterprise Server 11 SP3 puppet Affected
SUSE Linux Enterprise Server 11 SP3-LTSS puppet Affected
SUSE Linux Enterprise Server 11 SP4 puppet Affected
SUSE Linux Enterprise Server 11 SP4 LTSS puppet Affected
SUSE Linux Enterprise Server 11 SP4-LTSS puppet Affected
SUSE Linux Enterprise Server 12 puppet Released
SUSE Linux Enterprise Server 12 SP3 puppet Released
SUSE Linux Enterprise Server 12 SP4 puppet Released
SUSE Linux Enterprise Server for SAP Applications 12 puppet Released
SUSE Linux Enterprise Server for SAP Applications 12 SP3 puppet Released
SUSE Linux Enterprise Server for SAP Applications 12 SP4 puppet Released


SUSE Timeline for this CVE

CVE page created: Thu Feb 20 16:18:49 2020
CVE page last modified: Fri Oct 13 20:46:31 2023