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Exposure of Sensitive Information to an Unauthorized Actor

CVE-2021-28169

Medium
5.3/10

Summary

For Eclipse Jetty versions through 9.4.40, 10.0.0 through 10.0.2, 11.0.0 through 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.

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • NONE
  • NONE
  • LOW
  • NONE

CWE-200 - Information Exposure

An information exposure vulnerability is categorized as an information flow (IF) weakness, which can potentially allow unauthorized access to otherwise classified information in the application, such as confidential personal information (demographics, financials, health records, etc.), business secrets, and the application's internal environment.

References

Advisory Timeline

  • Published