CVE-2021-28169 Affecting jetty-server package, versions <9.4.42-3.9.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.69% (80th percentile)

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  • Snyk IDSNYK-SLES153-JETTYSERVER-2674765
  • published14 Apr 2022
  • disclosed17 Jun 2021

Introduced: 17 Jun 2021

CVE-2021-28169  (opens in a new tab)

How to fix?

Upgrade SLES:15.3 jetty-server to version 9.4.42-3.9.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream jetty-server package and not the jetty-server package as distributed by SLES. See How to fix? for SLES:15.3 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