Detections
Analytics
RHCOS 4 : OpenShift Container Platform 4.6.17 (RHSA-2021:0423)
high Nessus Plugin ID 312439
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Synopsis
The remote Red Hat CoreOS host is missing one or more security updates.Description
The remote Red Hat Enterprise Linux CoreOS 4 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:0423 advisory.- ant: insecure temporary file vulnerability (CVE-2020-1945)
- ant: insecure temporary file (CVE-2020-11979)
- jenkins: Arbitrary file read vulnerability in workspace browsers (CVE-2021-21602)
- jenkins: XSS vulnerability in notification bar (CVE-2021-21603)
- jenkins: Improper handling of REST API XML deserialization errors (CVE-2021-21604)
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 jenkins package.See Also
https://bugzilla.redhat.com/show_bug.cgi?id=1925145
https://bugzilla.redhat.com/show_bug.cgi?id=1925151
https://bugzilla.redhat.com/show_bug.cgi?id=1925156
https://bugzilla.redhat.com/show_bug.cgi?id=1925157
https://bugzilla.redhat.com/show_bug.cgi?id=1925159
https://bugzilla.redhat.com/show_bug.cgi?id=1925160
https://bugzilla.redhat.com/show_bug.cgi?id=1925161
https://bugzilla.redhat.com/show_bug.cgi?id=1925674
http://www.nessus.org/u?0e17de55
https://access.redhat.com/errata/RHSA-2021:0423
https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=1837444
https://bugzilla.redhat.com/show_bug.cgi?id=1903702
https://bugzilla.redhat.com/show_bug.cgi?id=1921322
https://bugzilla.redhat.com/show_bug.cgi?id=1925140
Plugin Details
Severity: High
ID: 312439
File Name: rhcos-RHSA-2021-0423.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: 6.0
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: Medium
Base Score: 6
Temporal Score: 4.4
Vector: CVSS2#AV:N/AC:M/Au:S/C:P/I:P/A:P
CVSS Score Source: CVE-2021-21605
CVSS v3
Risk Factor: High
Base Score: 8
Temporal Score: 7
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:jenkins, cpe:/o:redhat:enterprise_linux:8: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: 2/17/2021
Vulnerability Publication Date: 5/14/2020
Reference Information
CVE: CVE-2020-11979, CVE-2020-1945, CVE-2021-21602, CVE-2021-21603, CVE-2021-21604, CVE-2021-21605, CVE-2021-21606, CVE-2021-21607, CVE-2021-21608, CVE-2021-21609, CVE-2021-21610, CVE-2021-21611, CVE-2021-21615