Package Instance

Information Exposure
In Eclipse Jetty, the server running on any OS and Jetty version combination will reveal the configured fully qualified directory base resource location on the output of the error for not finding a Context that matches the requested path. The default server behavior on jetty-distribution and jetty-home will include at the end of the Handler tree a `DefaultHandler`, which is responsible for reporting this error, it presents the various configured contexts as HTML for users to click through to. This produced HTML includes output that contains the configured fully qualified directory base resource location for each context.

Eclipse Jetty URI parsing of invalid authority
Eclipse Jetty is a lightweight, highly scalable, Java-based web server and Servlet engine . It includes a utility class, `HttpURI`, for URI/URL parsing.

The `HttpURI` class does insufficient validation on the authority segment of a URI.  However the behaviour of `HttpURI` differs from the common browsers in how it handles a URI that would be considered invalid if fully validated against the RRC.  Specifically `HttpURI` and the browser may differ on the value of the host extracted from an invalid URI and thus a combination of Jetty and a vulnerable browser may be vulnerable to a open redirect attack or to a SSRF attack if the URI is used after passing validation checks.

Creation of Temporary File in Directory with Insecure Permissions
In Eclipse Jetty on Unix like systems, the system's temporary directory is shared between all users on that system. A collocated user can observe the process of creating a temporary sub directory in the shared temporary directory and race to complete the creation of the temporary subdirectory. If the attacker wins the race then they will have read and write permission to the subdirectory used to unpack web applications, including their `WEB-INF/lib` jar files and JSP files. If any code is ever executed out of this temporary directory, this can lead to a local privilege escalation vulnerability.