CVE-2023-40167 Information

Description

Jetty is a Java based web server and servlet engine. Prior to versions 9.4.52 10.0.16 11.0.16 and 12.0.1 Jetty accepts the + character proceeding the content-length value in a HTTP/1 header field. This is more permissive than allowed by the RFC and other servers routinely reject such requests with 400 responses. There is no known exploit scenario but it is conceivable that request smuggling could result if jetty is used in combination with a server that does not close the connection after sending such a 400 response. Versions 9.4.52 10.0.16 11.0.16 and 12.0.1 contain a patch for this issue. There is no workaround as there is no known exploit scenario.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Reference

https://www.rfc-editor.org/rfc/rfc9110#section-8.6 https://github.com/eclipse/jetty.project/security/advisories/GHSA-hmr7-m48g-48f6

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

LOW

Base Score

NONE

Base Severity

5.3