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Oracle Linux 7 : kubernetes / kubeadm-ha-setup / kubernetes-cni / kubernetes-cni-plugins (ELSA-2020-5725)

medium Nessus Plugin ID 180943

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Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-5725 advisory.

 - CVE-2020-10749: IPv4 only clusters susceptible to MitM attacks via IPv6 rogue router advertisements
 - CVE-2020-8555: Half-Blind SSRF in kube-controller-manager

 kubeadm-ha-setup
 - Enhance image tag read to depend on kubeadm-registry.sh for CVE release CVE-2020-10749: IPv4 only clusters susceptible to MitM attacks via IPv6 rogue router advertisements CVE-2020-8555: Half-Blind SSRF in kube-controller-manager

 kubernetes-cni

Tenable has extracted the preceding description block directly from the Oracle 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 affected packages.

See Also

https://linux.oracle.com/errata/ELSA-2020-5725.html

Plugin Details

Severity: Medium

ID: 180943

File Name: oraclelinux_ELSA-2020-5725.nasl

Version: 1.1

Type: local

Agent: unix

Published: 9/7/2023

Updated: 10/23/2024

Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

CVSS v2

Risk Factor: Medium

Base Score: 6

Temporal Score: 4.7

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

CVSS Score Source: CVE-2020-10749

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.7

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

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

CVSS Score Source: CVE-2020-8555

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:kubernetes-cni-plugins, cpe:/o:oracle:linux:7, p-cpe:/a:oracle:linux:kubernetes-cni, p-cpe:/a:oracle:linux:kubelet, p-cpe:/a:oracle:linux:kubectl, p-cpe:/a:oracle:linux:kubeadm, p-cpe:/a:oracle:linux:kubeadm-ha-setup

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/12/2020

Vulnerability Publication Date: 6/1/2020

Reference Information

CVE: CVE-2020-10749, CVE-2020-8555