Bug 1971016 (CVE-2021-28169) - CVE-2021-28169 jetty: requests to the ConcatServlet and WelcomeFilter are able to access protected resources within the WEB-INF directory
Summary: CVE-2021-28169 jetty: requests to the ConcatServlet and WelcomeFilter are abl...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-28169
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1976851 1971017 1972083 1972084 1972088 1972361
Blocks: 1971019
TreeView+ depends on / blocked
 
Reported: 2021-06-11 16:43 UTC by Guilherme de Almeida Suckevicz
Modified: 2022-10-27 18:13 UTC (History)
45 users (show)

Fixed In Version: jetty 9.4.41, jetty 10.0.3, jetty 11.0.3
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-08-19 09:35:05 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:3225 0 None None None 2021-08-19 07:18:08 UTC
Red Hat Product Errata RHSA-2021:3700 0 None None None 2021-09-30 09:58:13 UTC
Red Hat Product Errata RHSA-2021:3758 0 None None None 2021-10-18 16:51:49 UTC
Red Hat Product Errata RHSA-2021:4767 0 None None None 2021-11-23 10:35:42 UTC
Red Hat Product Errata RHSA-2021:5134 0 None None None 2021-12-14 21:35:29 UTC
Red Hat Product Errata RHSA-2022:7257 0 None None None 2022-10-27 18:13:19 UTC

Description Guilherme de Almeida Suckevicz 2021-06-11 16:43:51 UTC 
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.

Reference:
https://github.com/eclipse/jetty.project/security/advisories/GHSA-gwcr-j4wh-j3cq
Comment 1 Guilherme de Almeida Suckevicz 2021-06-11 16:44:18 UTC 
Created jetty tracking bugs for this issue:

Affects: fedora-all [bug 1971017]
Comment 2 Jonathan Christison 2021-06-14 12:21:49 UTC 
This vulnerability is out of security support scope for the following products:

 * Red Hat JBoss Fuse 6
 * Red Hat JBoss A-MQ 6

Please refer to https://access.redhat.com/support/policy/updates/jboss_notes for more details.
Comment 3 Jonathan Christison 2021-06-14 13:07:47 UTC 
Marking Red Hat Integration Camel K and Red Hat Integration Service Registry as having a low impact, although Camel K distributes jetty artifacts through camel-jetty, camel-jetty itself is not available for use by the application developer, http functionality is provided by camel-k default runtime, Quarkus.

Red Hat Integration Service Registry distributes Jetty as part of Kafka Connect component which is not available in the productised release meaning jetty is also not available for use by the end application developer.
Comment 7 Jonathan Christison 2021-06-16 15:33:21 UTC 
Upstream Fixes:

9.4.x https://github.com/eclipse/jetty.project/commit/1c05b0bcb181c759e98b060bded0b9376976b055
10.x https://github.com/eclipse/jetty.project/commit/f58dbedcd05b2aee43c8faa709ba2deaa4361036
Comment 10 Summer Long 2021-06-21 00:53:07 UTC 
github advisory: https://github.com/eclipse/jetty.project/security/advisories/GHSA-gwcr-j4wh-j3cq
Comment 17 errata-xmlrpc 2021-08-19 07:18:05 UTC 
This issue has been addressed in the following products:

  Red Hat AMQ Streams 1.8.0

Via RHSA-2021:3225 https://access.redhat.com/errata/RHSA-2021:3225
Comment 18 Product Security DevOps Team 2021-08-19 09:35:05 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-28169
Comment 19 errata-xmlrpc 2021-09-30 09:58:11 UTC 
This issue has been addressed in the following products:

  Red Hat AMQ 7.9.0

Via RHSA-2021:3700 https://access.redhat.com/errata/RHSA-2021:3700
Comment 20 errata-xmlrpc 2021-10-18 16:51:45 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.9

Via RHSA-2021:3758 https://access.redhat.com/errata/RHSA-2021:3758
Comment 21 errata-xmlrpc 2021-11-23 10:35:39 UTC 
This issue has been addressed in the following products:

  Red Hat Integration

Via RHSA-2021:4767 https://access.redhat.com/errata/RHSA-2021:4767
Comment 22 errata-xmlrpc 2021-12-14 21:35:26 UTC 
This issue has been addressed in the following products:

  Red Hat Fuse 7.10

Via RHSA-2021:5134 https://access.redhat.com/errata/RHSA-2021:5134
Comment 23 errata-xmlrpc 2022-10-27 18:13:15 UTC 
This issue has been addressed in the following products:

  RHINT Camel-K 1.8.1

Via RHSA-2022:7257 https://access.redhat.com/errata/RHSA-2022:7257
Note You need to log in before you can comment on or make changes to this bug.