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CVE-2021-28169

Published: 9 June 2021

For Eclipse Jetty versions <= 9.4.40, <= 10.0.2, <= 11.0.2, it is possible for requests to the ConcatServlet with a doubly encoded path to access protected resources within the WEB-INF directory. For example a request to `/concat?/%2557EB-INF/web.xml` can retrieve the web.xml file. This can reveal sensitive information regarding the implementation of a web application.

Priority

Medium

Cvss 3 Severity Score

5.3

Score breakdown

Status

Package Release Status
jetty
Launchpad, Ubuntu, Debian
impish Does not exist

lunar Does not exist

bionic Does not exist

focal Does not exist

groovy Does not exist

trusty Needs triage

hirsute Does not exist

upstream Needs triage

xenial Needs triage

jammy Does not exist

kinetic Does not exist

mantic Does not exist

jetty8
Launchpad, Ubuntu, Debian
impish Does not exist

lunar Does not exist

bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

trusty Needs triage

upstream Needs triage

xenial Needs triage

jammy Does not exist

kinetic Does not exist

mantic Does not exist

jetty9
Launchpad, Ubuntu, Debian
hirsute Ignored
(end of life)
lunar Ignored
(end of life, was needs-triage)
trusty Does not exist

bionic Needs triage

focal Needs triage

upstream Needs triage

groovy Ignored
(end of life)
kinetic Ignored
(end of life, was needs-triage)
jammy Needs triage

impish Ignored
(end of life)
xenial Needs triage

mantic Needs triage

Severity score breakdown

Parameter Value
Base score 5.3
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality Low
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N