CVE-2021-28169

jetty: requests to the ConcatServlet and WelcomeFilter are able to access protected resources within the WEB-INF directory

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Para Eclipse Jetty versiones anteriores a 9.4.40 incluyéndola, versiones anteriores a 10.0.2 incluyéndola, versiones anteriores a 11.0.2 incluyéndola, es posible que las peticiónes al ConcatServlet con una ruta doblemente codificada acceder a recursos protegidos dentro del directorio WEB-INF. Por ejemplo, una petición a "/concat?/%2557EB-INF/web.xml" puede recuperar el archivo web.xml. Esto puede revelar información confidencial sobre la implementación de una aplicación web

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-03-12 CVE Reserved
2021-06-09 CVE Published
2024-04-17 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

CAPEC

References (26)

URL	Tag	Source
https://github.com/eclipse/jetty.project/security/advisories/GHSA-gwcr-j4wh-j3cq	Third Party Advisory
https://lists.apache.org/thread.html/r04a4b4553a23aff26f42635a6ae388c3b162aab30a88d12e59d05168%40%3Cjira.kafka.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r234f6452297065636356f43654cdacef565b8f9ceb0e0c07ffb8c73b%40%3Cdev.kafka.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r2721aba31a8562639c4b937150897e24f78f747cdbda8641c0f659fe%40%3Cusers.kafka.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r284de9c5399486dfff12ab9e7323ca720dd7019a9a3e11c8510a7140%40%3Cjira.kafka.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r29678972c3f8164b151fd7a5802785d402e530c09870a82ffc7681a4%40%3Cdev.kafka.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r32b0b640ad2be3b858f0af51c68a7d5c5a66a462c8bbb93699825cd3%40%3Cissues.zookeeper.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r33eb06b05afbc7df28d31055cae0cb3fd36cab808c884bf6d680bea5%40%3Cdev.zookeeper.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r67c4f90658fde875521c949448c54c98517beecdc7f618f902c620ec%40%3Cissues.zookeeper.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r8a1a332899a1f92c8118b0895b144b27a78e3f25b9d58a34dd5eb084%40%3Cnotifications.zookeeper.apache.org%3E	X_refsource_misc
https://lists.apache.org/thread.html/r91e34ff61aff8fd25a3f2a21539597c6ef7589a31c199b0a9546477c%40%3Cjira.kafka.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rb1292d30462b9baedea7c5d9594fc75990d9aa0ec223b48054ca9c25%40%3Cjira.kafka.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rbefa055282d52d6b58d29a79fbb0be65ab0a38d25f00bd29eaf5e6fd%40%3Cnotifications.zookeeper.apache.org%3E	X_refsource_misc
https://lists.apache.org/thread.html/rd5b52362f5edf98e0dcab6541a381f571cccc05ad9188e793af688f3%40%3Cjira.kafka.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rddbb4f8d5db23265bb63d14ef4b3723b438abc1589f877db11d35450%40%3Cissues.zookeeper.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/ref1c161a1621504e673f9197b49e6efe5a33ce3f0e6d8f1f804fc695%40%3Cjira.kafka.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rf36f1114e84a3379b20587063686148e2d5a39abc0b8a66ff2a9087a%40%3Cissues.zookeeper.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rfff6ff8ffb31e8a32619c79774def44b6ffbb037c128c5ad3eab7171%40%3Cissues.zookeeper.apache.org%3E	Mailing List
https://lists.debian.org/debian-lts-announce/2021/06/msg00017.html	Mailing List
https://security.netapp.com/advisory/ntap-20210727-0009	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://www.oracle.com/security-alerts/cpuapr2022.html	2023-11-07
https://www.oracle.com/security-alerts/cpujan2022.html	2023-11-07
https://www.oracle.com/security-alerts/cpuoct2021.html	2023-11-07

URL	Date	SRC
https://www.debian.org/security/2021/dsa-4949	2023-11-07
https://access.redhat.com/security/cve/CVE-2021-28169	2022-10-27
https://bugzilla.redhat.com/show_bug.cgi?id=1971016	2022-10-27

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Eclipse Search vendor "Eclipse"		Jetty Search vendor "Eclipse" for product "Jetty"				< 9.4.41 Search vendor "Eclipse" for product "Jetty" and version " < 9.4.41"		-		Affected
Eclipse Search vendor "Eclipse"		Jetty Search vendor "Eclipse" for product "Jetty"				>= 10.0.0 < 10.0.3 Search vendor "Eclipse" for product "Jetty" and version " >= 10.0.0 < 10.0.3"		-		Affected
Eclipse Search vendor "Eclipse"		Jetty Search vendor "Eclipse" for product "Jetty"				>= 11.0.0 < 11.0.3 Search vendor "Eclipse" for product "Jetty" and version " >= 11.0.0 < 11.0.3"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected
Oracle Search vendor "Oracle"		Communications Cloud Native Core Policy Search vendor "Oracle" for product "Communications Cloud Native Core Policy"				1.14.0 Search vendor "Oracle" for product "Communications Cloud Native Core Policy" and version "1.14.0"		-		Affected
Oracle Search vendor "Oracle"		Rest Data Services Search vendor "Oracle" for product "Rest Data Services"				< 21.3 Search vendor "Oracle" for product "Rest Data Services" and version " < 21.3"		-		Affected
Netapp Search vendor "Netapp"		Active Iq Unified Manager Search vendor "Netapp" for product "Active Iq Unified Manager"				-		linux		Affected
Netapp Search vendor "Netapp"		Active Iq Unified Manager Search vendor "Netapp" for product "Active Iq Unified Manager"				-		windows		Affected
Netapp Search vendor "Netapp"		Hci Search vendor "Netapp" for product "Hci"				-		-		Affected
Netapp Search vendor "Netapp"		Management Services For Element Software Search vendor "Netapp" for product "Management Services For Element Software"				-		-		Affected
Netapp Search vendor "Netapp"		Snap Creator Framework Search vendor "Netapp" for product "Snap Creator Framework"				-		-		Affected