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Eclipse Jetty Information Disclosure Vulnerability (GHSA-gwcr-j4wh-j3cq)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Eclipse Jetty is prone to an information disclosure vulnerability in the ConcatServlet and WelcomeFilter servlet.
Insight
Insight
Requests to the ConcatServlet and WelcomeFilter are able to access protected resources within the WEB-INF directory. For example a request to the ConcatServlet with a URI of /concat?/%2557EB-INF/web.xml can retrieve the web.xml file. This can reveal sensitive information regarding the implementation of a web application. This occurs because both ConcatServlet and WelcomeFilter decode the supplied path to verify it is not within the WEB-INF or META-INF directories. It then uses this decoded path to call RequestDispatcher which will also do decoding of the path. This double decoding allows paths with a doubly encoded WEB-INF to bypass this security check.
Affected Software
Affected Software
Eclipse Jetty prior to version 9.4.41, 10.x through 10.0.2 and 11.x through 11.0.2.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Update to version 9.4.41, 10.0.3, 11.0.3 or later.