RHCOS 4 : OpenShift Container Platform 4.3.25 openshift (RHSA-2020:2440)

medium Nessus Plugin ID 312466

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Synopsis

The remote Red Hat CoreOS host is missing a security update for OpenShift Container Platform 4.3.25 openshift.

Description

The remote Red Hat Enterprise Linux CoreOS 4 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2020:2440 advisory.

- kubernetes: Server side request forgery (SSRF) in kube-controller-manager allows users to leak secret information (CVE-2020-8555)

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

Solution

Update the RHCOS OpenShift Container Platform 4.3.25 openshift package based on the guidance in RHSA-2020:2440.

Plugin Details

Severity: Medium

ID: 312466

File Name: rhcos-RHSA-2020-2440.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 5/6/2026

Updated: 5/6/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Low

Base Score: 3.5

Temporal Score: 2.6

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

CVSS Score Source: CVE-2020-8555

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:openshift, p-cpe:/a:redhat:enterprise_linux:openshift-hyperkube, cpe:/o:redhat:enterprise_linux:8:coreos, cpe:/o:redhat:enterprise_linux:7:coreos

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/17/2020

Vulnerability Publication Date: 6/1/2020

Reference Information

CVE: CVE-2020-8555

CWE: 200

RHSA: 2020:2440

Detections

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