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RHCOS 3 : OpenShift Container Platform 3.11.346 (RHSA-2020:5363)
medium Nessus Plugin ID 312464
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Synopsis
The remote Red Hat CoreOS host is missing one or more security updates for OpenShift Container Platform 3.11.346.Description
The remote Red Hat Enterprise Linux CoreOS 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:5363 advisory.- kubernetes: improper validation of URL redirection in the Kubernetes API server allows an attacker- controlled Kubelet to redirect API server requests from streaming endpoints (CVE-2018-1002102)
- kubernetes: compromised node could escalate to cluster level privileges (CVE-2020-8559)
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 RHCOS OpenShift Container Platform 3.11.346 package based on the guidance in RHSA-2020:5363.See Also
https://access.redhat.com/security/updates/classification/#moderate
https://bugzilla.redhat.com/show_bug.cgi?id=1784602
https://bugzilla.redhat.com/show_bug.cgi?id=1851422
https://bugzilla.redhat.com/show_bug.cgi?id=1860906
https://bugzilla.redhat.com/show_bug.cgi?id=1880784
https://bugzilla.redhat.com/show_bug.cgi?id=1895445
https://bugzilla.redhat.com/show_bug.cgi?id=1896696
https://bugzilla.redhat.com/show_bug.cgi?id=1898906
https://bugzilla.redhat.com/show_bug.cgi?id=1899609
https://bugzilla.redhat.com/show_bug.cgi?id=1903524
Plugin Details
Severity: Medium
ID: 312464
File Name: rhcos-RHSA-2020-5363.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: 6.7
Vendor
Vendor Severity: Moderate
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-2020-8559
CVSS v3
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 6.1
Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:atomic-openshift, p-cpe:/a:redhat:enterprise_linux:atomic-openshift-clients, p-cpe:/a:redhat:enterprise_linux:atomic-openshift-clients-redistributable, p-cpe:/a:redhat:enterprise_linux:atomic-openshift-master, p-cpe:/a:redhat:enterprise_linux:atomic-openshift-node, p-cpe:/a:redhat:enterprise_linux:atomic-openshift-pod, p-cpe:/a:redhat:enterprise_linux:atomic-openshift-sdn-ovs, p-cpe:/a:redhat:enterprise_linux:atomic-openshift-tests, p-cpe:/a:redhat:enterprise_linux:atomic-openshift-docker-excluder, p-cpe:/a:redhat:enterprise_linux:atomic-openshift-excluder, p-cpe:/a:redhat:enterprise_linux:atomic-openshift-template-service-broker, p-cpe:/a:redhat:enterprise_linux:atomic-openshift-hyperkube, p-cpe:/a:redhat:enterprise_linux:atomic-openshift-hypershift, cpe:/o:redhat:enterprise_linux:7:coreos
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: 12/16/2020
Vulnerability Publication Date: 9/26/2018