medium
5.3
CWE
200
Advisory Published
CVE Published
Updated

CVE-2021-28169: Infoleak

First published: Tue Jun 08 2021(Updated: )

Eclipse Jetty could allow a remote attacker to obtain sensitive information, caused by a flaw in the ConcatServlet. By sending a specially-crafted request using a doubly encoded path, an attacker could exploit this vulnerability to obtain sensitive information from protected resources within the WEB-INF directory, and use this information to launch further attacks against the affected system.

Credit: emo@eclipse.org

Affected SoftwareAffected VersionHow to fix
redhat/jenkins<0:2.289.3.1630554997-1.el8
0:2.289.3.1630554997-1.el8
debian/jetty9
9.4.16-0+deb10u1
9.4.50-4+deb10u1
9.4.39-3+deb11u2
9.4.50-4+deb11u1
9.4.50-4+deb12u2
9.4.53-1
redhat/jetty<9.4.41
9.4.41
redhat/jetty<10.0.3
10.0.3
redhat/jetty<11.0.3
11.0.3
Eclipse Jetty<9.4.41
Eclipse Jetty>=10.0.0<10.0.3
Eclipse Jetty>=11.0.0<11.0.3
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Oracle Communications Cloud Native Core Policy=1.14.0
Oracle REST Data Services<21.3
Netapp Active Iq Unified Manager Linux
Netapp Active Iq Unified Manager Windows
Netapp Hci
Netapp Management Services For Element Software
NetApp Snap Creator Framework
IBM Cognos Analytics<=12.0.0-12.0.3
IBM Cognos Analytics<=11.2.0-11.2.4 FP3

Remedy

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

Remedy

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

Remedy

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

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2021-28169?

    CVE-2021-28169 is a vulnerability in Eclipse Jetty versions <= 9.4.40 <= 10.0.2 <= 11.0.2 that allows a remote attacker to obtain sensitive information from protected resources within the web application.

  • What is the severity of CVE-2021-28169?

    The severity of CVE-2021-28169 is medium, with a CVSS score of 5.3.

  • How can an attacker exploit CVE-2021-28169?

    An attacker can exploit CVE-2021-28169 by sending a specially-crafted request using a doubly encoded path.

  • Which versions of Eclipse Jetty are affected by CVE-2021-28169?

    Eclipse Jetty versions <= 9.4.40, <= 10.0.2, and <= 11.0.2 are affected by CVE-2021-28169.

  • How can I mitigate CVE-2021-28169?

    To mitigate CVE-2021-28169, update Jetty to version 9.4.41, 10.0.3, or 11.0.3.

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