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CVE-2021-28164: Information Exposure

April 1, 2021 (updated November 7, 2023)

In Eclipse Jetty the default compliance mode allows requests with URIs that contain %2e or %2e%2e segments to access protected resources within the WEB-INF directory. For example a request to /context/%2e/WEB-INF/web.xml can retrieve the web.xml file. This can reveal sensitive information regarding the implementation of a web application.

References

  • nvd.nist.gov/vuln/detail/CVE-2021-28164

Code Behaviors & Features

Detect and mitigate CVE-2021-28164 with GitLab Dependency Scanning

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Affected versions

All versions starting from 9.4.37 up to 9.4.38

Fixed versions

  • 9.4.38.v20210224

Solution

Upgrade to version 9.4.38.v20210224 or above.

Impact 5.3 MEDIUM

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

Learn more about CVSS

Source file

maven/org.eclipse.jetty/jetty-server/CVE-2021-28164.yml

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