Detections
Analytics
RHCOS 4 : OpenShift Container Platform 4.5.27 (RHSA-2021:0034)
medium Nessus Plugin ID 312479
Language:
Synopsis
The remote Red Hat CoreOS host is missing one or more security updates for OpenShift Container Platform 4.5.27.Description
The remote Red Hat Enterprise Linux CoreOS 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:0034 advisory.- jenkins-2-plugins/subversion: XML parser is not preventing XML external entity (XXE) attacks (CVE-2020-2304)
- jenkins-2-plugins/mercurial: XML parser is not preventing XML external entity (XXE) attacks (CVE-2020-2305)
- jenkins-2-plugins/mercurial: Missing permission check in an HTTP endpoint could result in information disclosure (CVE-2020-2306)
- jenkins-2-plugins/kubernetes: Jenkins controller environment variables are accessible in Kubernetes Plugin (CVE-2020-2307)
- jenkins-2-plugins/kubernetes: Missing permission check in Kubernetes Plugin allows listing pod templates (CVE-2020-2308)
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 4.5.27 packages based on the guidance in RHSA-2021:0034.See Also
https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=1883632
https://bugzilla.redhat.com/show_bug.cgi?id=1895939
https://bugzilla.redhat.com/show_bug.cgi?id=1895940
https://bugzilla.redhat.com/show_bug.cgi?id=1895941
https://bugzilla.redhat.com/show_bug.cgi?id=1895945
https://bugzilla.redhat.com/show_bug.cgi?id=1895946
https://bugzilla.redhat.com/show_bug.cgi?id=1895947
https://bugzilla.redhat.com/show_bug.cgi?id=1913121
Plugin Details
Severity: Medium
ID: 312479
File Name: rhcos-RHSA-2021-0034.nasl
Version: 1.1
Type: Local
Agent: unix
Family: Red Hat Local Security Checks
Published: 5/6/2026
Updated: 5/6/2026
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 4.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N
CVSS Score Source: CVE-2020-26137
CVSS v3
Risk Factor: Medium
Base Score: 6.5
Temporal Score: 5.7
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: Medium
Base Score: 6.9
Threat Score: 2.7
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:python-urllib3, p-cpe:/a:redhat:enterprise_linux:jenkins-2-plugins, p-cpe:/a:redhat:enterprise_linux:python2-urllib3, 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: 1/20/2021
Vulnerability Publication Date: 9/29/2020
Reference Information
CVE: CVE-2020-2304, CVE-2020-2305, CVE-2020-2306, CVE-2020-2307, CVE-2020-2308, CVE-2020-2309, CVE-2020-26137