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Linux Distros Unpatched Vulnerability : CVE-2021-28163

low Nessus Plugin ID 223759

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - In Eclipse Jetty 9.4.32 to 9.4.38, 10.0.0.beta2 to 10.0.1, and 11.0.0.beta2 to 11.0.1, if a user uses a webapps directory that is a symlink, the contents of the webapps directory is deployed as a static webapp, inadvertently serving the webapps themselves and anything else that might be in that directory.
 (CVE-2021-28163)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2021-28163

https://ubuntu.com/security/CVE-2021-28163

Plugin Details

Severity: Low

ID: 223759

File Name: unpatched_CVE_2021_28163.nasl

Version: 1.3

Type: local

Agent: unix

Family: Misc.

Published: 3/4/2025

Updated: 9/10/2025

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.2

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3.1

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

CVSS Score Source: CVE-2021-28163

CVSS v3

Risk Factor: Low

Base Score: 2.7

Temporal Score: 2.5

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

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

Vulnerability Information

CPE: p-cpe:/a:centos:centos:jetty-http, p-cpe:/a:redhat:enterprise_linux:jetty-io, cpe:/o:centos:centos:8, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:redhat:enterprise_linux:jetty-util, p-cpe:/a:redhat:enterprise_linux:jetty-server, p-cpe:/a:centos:centos:jetty-security, p-cpe:/a:centos:centos:jetty-util, p-cpe:/a:centos:centos:jetty-io, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:jetty-servlet, p-cpe:/a:centos:centos:jetty-server, p-cpe:/a:canonical:ubuntu_linux:equinox-bundles, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:redhat:enterprise_linux:jetty-http, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:redhat:enterprise_linux:jetty-continuation, p-cpe:/a:centos:centos:jetty-servlet, p-cpe:/a:centos:centos:jetty-continuation, p-cpe:/a:redhat:enterprise_linux:jetty-security

Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 4/1/2021

Reference Information

CVE: CVE-2021-28163