Information Exposure Affecting jetty9 package, versions <9.4.16-0+deb10u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.62% (80th percentile)

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  • Snyk IDSNYK-DEBIAN10-JETTY9-1303160
  • published11 Jun 2021
  • disclosed9 Jun 2021

Introduced: 9 Jun 2021

CVE-2021-28169  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Debian:10 jetty9 to version 9.4.16-0+deb10u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream jetty9 package and not the jetty9 package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

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.

References

CVSS Scores

version 3.1