CVE-2024-6763

Public Exploit
Jetty URI parsing of invalid authority

Description

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.

Remediation

Workaround:

  • The attacks outlined above rely on decoded user data being passed to the HttpURI class. Application should not pass decoded user data as an encoded URI to any URI class/method, including HttpURI. Such applications are likely to be vulnerable in other ways. The immediate solution is to upgrade to a version of the class that will fully validate the characters of the URI authority. Ultimately, Jetty will deprecate and remove support for user info in the authority per RFC9110 Section 4.2.4 https://datatracker.ietf.org/doc/html/rfc9110#section-4.2.4 . Note that the Chrome (and other browsers) parse the invalid user info section improperly as well (due to flawed WhatWG URL parsing rules that do not apply outside of a Web Browser).

Category

3.7
CVSS
Severity: Low
CVSS 3.1 •
EPSS 0.11%
Vendor Advisory github.com Vendor Advisory eclipse.org
Affected: Eclipse Foundation Jetty
Published at:
Updated at:

References

Link Tags
https://github.com/jetty/jetty.project/security/advisories/GHSA-qh8g-58pp-2wxh mitigation vendor advisory exploit
https://gitlab.eclipse.org/security/cve-assignement/-/issues/25 vendor advisory
https://github.com/jetty/jetty.project/pull/12012 patch
https://security.netapp.com/advisory/ntap-20250306-0005/

Frequently Asked Questions

What is the severity of CVE-2024-6763?
CVE-2024-6763 has been scored as a low severity vulnerability.
How to fix CVE-2024-6763?
As a workaround for remediating CVE-2024-6763: The attacks outlined above rely on decoded user data being passed to the HttpURI class. Application should not pass decoded user data as an encoded URI to any URI class/method, including HttpURI. Such applications are likely to be vulnerable in other ways. The immediate solution is to upgrade to a version of the class that will fully validate the characters of the URI authority. Ultimately, Jetty will deprecate and remove support for user info in the authority per RFC9110 Section 4.2.4 https://datatracker.ietf.org/doc/html/rfc9110#section-4.2.4 . Note that the Chrome (and other browsers) parse the invalid user info section improperly as well (due to flawed WhatWG URL parsing rules that do not apply outside of a Web Browser).
Is CVE-2024-6763 being actively exploited in the wild?
It is possible that CVE-2024-6763 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-6763?
CVE-2024-6763 affects Eclipse Foundation Jetty.
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