CVE-2021-28169

MEDIUM EXPLOITED NUCLEI

Eclipse Jetty ConcatServlet - Information Disclosure

Title source: nuclei

Exploitation Summary

CVE-2021-28169 has been observed exploited in the wild (reported by VulnCheck KEV). A Nuclei detection template is also available.

Description

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.

Nuclei Templates (1)

Eclipse Jetty ConcatServlet - Information Disclosure

MEDIUMby pikpikcu

Shodan: cpe:"cpe:2.3:a:eclipse:jetty"

References (24)

Core 24

Core References

Third Party Advisory x_refsource_confirm

https://github.com/eclipse/jetty.project/security/advisories/GHSA-gwcr-j4wh-j3cq

Mailing List mailing-list x_refsource_mlist

https://lists.apache.org/thread.html/r2721aba31a8562639c4b937150897e24f78f747cdbda8641c0f659fe%40%3Cusers.kafka.apache.org%3E

Mailing List, Third Party Advisory mailing-list x_refsource_mlist

https://lists.debian.org/debian-lts-announce/2021/06/msg00017.html

Mailing List mailing-list x_refsource_mlist

https://lists.apache.org/thread.html/ref1c161a1621504e673f9197b49e6efe5a33ce3f0e6d8f1f804fc695%40%3Cjira.kafka.apache.org%3E

Mailing List mailing-list x_refsource_mlist

https://lists.apache.org/thread.html/r29678972c3f8164b151fd7a5802785d402e530c09870a82ffc7681a4%40%3Cdev.kafka.apache.org%3E

Mailing List mailing-list x_refsource_mlist

https://lists.apache.org/thread.html/r04a4b4553a23aff26f42635a6ae388c3b162aab30a88d12e59d05168%40%3Cjira.kafka.apache.org%3E

Mailing List mailing-list x_refsource_mlist

https://lists.apache.org/thread.html/rd5b52362f5edf98e0dcab6541a381f571cccc05ad9188e793af688f3%40%3Cjira.kafka.apache.org%3E

Mailing List mailing-list x_refsource_mlist

https://lists.apache.org/thread.html/r284de9c5399486dfff12ab9e7323ca720dd7019a9a3e11c8510a7140%40%3Cjira.kafka.apache.org%3E

Mailing List mailing-list x_refsource_mlist

https://lists.apache.org/thread.html/r234f6452297065636356f43654cdacef565b8f9ceb0e0c07ffb8c73b%40%3Cdev.kafka.apache.org%3E

Mailing List mailing-list x_refsource_mlist

https://lists.apache.org/thread.html/r91e34ff61aff8fd25a3f2a21539597c6ef7589a31c199b0a9546477c%40%3Cjira.kafka.apache.org%3E

Mailing List mailing-list x_refsource_mlist

https://lists.apache.org/thread.html/rb1292d30462b9baedea7c5d9594fc75990d9aa0ec223b48054ca9c25%40%3Cjira.kafka.apache.org%3E

Third Party Advisory vendor-advisory x_refsource_debian

https://www.debian.org/security/2021/dsa-4949

Mailing List mailing-list x_refsource_mlist

https://lists.apache.org/thread.html/rfff6ff8ffb31e8a32619c79774def44b6ffbb037c128c5ad3eab7171%40%3Cissues.zookeeper.apache.org%3E

Mailing List mailing-list x_refsource_mlist

https://lists.apache.org/thread.html/r32b0b640ad2be3b858f0af51c68a7d5c5a66a462c8bbb93699825cd3%40%3Cissues.zookeeper.apache.org%3E

Mailing List mailing-list x_refsource_mlist

https://lists.apache.org/thread.html/rf36f1114e84a3379b20587063686148e2d5a39abc0b8a66ff2a9087a%40%3Cissues.zookeeper.apache.org%3E

Mailing List mailing-list x_refsource_mlist

https://lists.apache.org/thread.html/rddbb4f8d5db23265bb63d14ef4b3723b438abc1589f877db11d35450%40%3Cissues.zookeeper.apache.org%3E

Mailing List mailing-list x_refsource_mlist

https://lists.apache.org/thread.html/r33eb06b05afbc7df28d31055cae0cb3fd36cab808c884bf6d680bea5%40%3Cdev.zookeeper.apache.org%3E

Mailing List mailing-list x_refsource_mlist

https://lists.apache.org/thread.html/r67c4f90658fde875521c949448c54c98517beecdc7f618f902c620ec%40%3Cissues.zookeeper.apache.org%3E

Patch, Third Party Advisory x_refsource_misc

https://www.oracle.com/security-alerts/cpuoct2021.html

Mailing List x_refsource_misc

https://lists.apache.org/thread.html/r8a1a332899a1f92c8118b0895b144b27a78e3f25b9d58a34dd5eb084%40%3Cnotifications.zookeeper.apache.org%3E

Mailing List x_refsource_misc

https://lists.apache.org/thread.html/rbefa055282d52d6b58d29a79fbb0be65ab0a38d25f00bd29eaf5e6fd%40%3Cnotifications.zookeeper.apache.org%3E

Third Party Advisory x_refsource_confirm

https://security.netapp.com/advisory/ntap-20210727-0009/

Patch, Third Party Advisory x_refsource_misc

https://www.oracle.com/security-alerts/cpujan2022.html

Patch, Third Party Advisory x_refsource_misc

https://www.oracle.com/security-alerts/cpuapr2022.html

Scores

CVSS v3 5.3

EPSS 0.7848

EPSS Percentile 99.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Details

VulnCheck KEV 2022-08-19

CWE

CWE-200

Status published

Products (10)

debian/debian_linux 9.0

debian/debian_linux 10.0

eclipse/jetty < 9.4.41

netapp/active_iq_unified_manager (2 CPE variants)

netapp/hci

netapp/management_services_for_element_software

netapp/snap_creator_framework

oracle/communications_cloud_native_core_policy 1.14.0

oracle/rest_data_services < 21.3

org.eclipse.jetty/jetty-servlets 0 - 9.4.41Maven

Published Jun 09, 2021

Tracked Since Feb 18, 2026