RHEL 7 / 8 : OpenShift Container Platform 4.7.19 (RHSA-2021:2555)

high Nessus Plugin ID 151426

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Synopsis

The remote Red Hat host is missing one or more security updates for OpenShift Container Platform 4.7.19.

Description

The remote Redhat Enterprise Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:2555 advisory.

Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments.

This advisory contains the RPM packages for Red Hat OpenShift Container Platform 4.7.19. See the following advisory for the container images for this release:

https://access.redhat.com/errata/RHSA-2021:2554

Security Fix(es):

* polkit: local privilege escalation using polkit_system_bus_name_get_creds_sync() (CVE-2021-3560)

* dhcp: stack-based buffer overflow when parsing statements with colon-separated hex digits in config or lease files in dhcpd and dhclient (CVE-2021-25217)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

All OpenShift Container Platform 4.7 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift Console or the CLI oc command. Instructions for upgrading a cluster are available at https://docs.openshift.com/container-platform/4.7/updating/updating-cluster-between- minor.html#understanding-upgrade-channels_updating-cluster-between-minor

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

Solution

Update the RHEL OpenShift Container Platform 4.7.19 packages based on the guidance in RHSA-2021:2555.

Plugin Details

Severity: High

ID: 151426

File Name: redhat-RHSA-2021-2555.nasl

Version: 1.18

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 7/6/2021

Updated: 11/7/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.4

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

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

CVSS Score Source: CVE-2021-3560

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:openshift-clients, p-cpe:/a:redhat:enterprise_linux:dhcp-common, p-cpe:/a:redhat:enterprise_linux:openshift-kuryr, p-cpe:/a:redhat:enterprise_linux:openshift-kuryr-controller, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:polkit, p-cpe:/a:redhat:enterprise_linux:dhcp-libs, p-cpe:/a:redhat:enterprise_linux:openshift-clients-redistributable, p-cpe:/a:redhat:enterprise_linux:openshift-kuryr-common, p-cpe:/a:redhat:enterprise_linux:dhcp-client, p-cpe:/a:redhat:enterprise_linux:openshift-kuryr-cni, p-cpe:/a:redhat:enterprise_linux:python3-kuryr-kubernetes, p-cpe:/a:redhat:enterprise_linux:dhcp, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:polkit-libs, p-cpe:/a:redhat:enterprise_linux:cri-o

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/6/2021

Vulnerability Publication Date: 5/26/2021

CISA Known Exploited Vulnerability Due Dates: 6/2/2023

Exploitable With

Metasploit (Polkit D-Bus Authentication Bypass)

Reference Information

CVE: CVE-2021-25217, CVE-2021-3560

CWE: 119, 754

IAVB: 2021-B-0032-S

RHSA: 2021:2555

Detections

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