Information Exposure Affecting jetty-webapp package, versions <0:9.0.3-8.amzn2.0.1


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

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

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  • Snyk IDSNYK-AMZN2-JETTYWEBAPP-6149416
  • published10 Jan 2024
  • 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 Amazon-Linux:2 jetty-webapp to version 0:9.0.3-8.amzn2.0.1 or higher.
This issue was patched in ALAS2-2024-2408.

NVD Description

Note: Versions mentioned in the description apply only to the upstream jetty-webapp package and not the jetty-webapp package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 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