Jetty < 9.4.39 Multiple Vulnerabilities

high Web Application Scanning Plugin ID 112993
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Jetty < 9.4.39 Multiple Vulnerabilities


According to its self-reported version number, the instance of Jetty hosted on the remote web server is prior to 9.4.39, 10.0.x prior to 10.0.2 or 11.0.x prior to 11.0.2. It is, therefore, affected by multiple vulnerabilities:

- An issue where CPU usage can reach 100% with a large invalid TLS frame. (CVE-2021-28165)

- A issue with permitting access to protected resources within the WEB-INF directory when accessed with encoded paths. (CVE-2021-28164)

- An issue when a symlinked webapps directory is used, the contents of the webapps directory is deployed as a static webapp. (CVE-2021-28163)

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.


Upgrade to Jetty version 9.4.39 or later.

See Also

Plugin Details

Severity: High

ID: 112993

Type: remote

Published: 10/4/2021

Updated: 10/7/2021

Scan Template: scan, pci

Risk Information

CVSS Score Source: CVE-2021-28165


Risk Factor: High

Base Score: 7.8

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C


Risk Factor: High

Base Score: 7.5

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

Vulnerability Information

CPE: cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:*

Exploit Ease: No known exploits are available

Patch Publication Date: 4/20/2021

Vulnerability Publication Date: 4/1/2021

Reference Information

CVE: CVE-2021-28165, CVE-2021-28164, CVE-2021-28163