CVE-2023-40167

Summary

CVE-2023-40167 is a vulnerability affecting Jetty versions prior to 9.4.52, 10.0.16, 11.0.16, and 12.0.1. This Java-based web server and servlet engine permissively accepts the `+` character before the content-length value in an HTTP/1 header field, contrary to RFC specifications and common server practices. This could potentially lead to request smuggling if Jetty is used in conjunction with a server that does not terminate the connection after sending a 400 response. No known exploits have been reported, and the current versions (9.4.52, 10.0.16, 11.0.16, and 12.0.1) contain a patch for this issue. No workarounds are available since there is no known exploit scenario.

Prevent cyber attacks with Recorded Future by prioritizing and patching critical vulnerabilities being exploited by threat actors targeting your industry. Book your demo to learn more.