Severity
Details
- CVSS score
- 7.4
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- CWE ID
Overview
About vulnerability
Description (as reported)
A security vulnerability has been identified in Jetty’s JaspiAuthenticator.java.
The root cause is a failure to consistently clear authentication metadata stored in ThreadLocal during certain error or incomplete authentication flows.
Specifically, after a GroupPrincipalCallback is persisted into the ThreadLocal, the authentication process may exit prematurely — before the ThreadLocal storage is cleared — if a mandatory CallerPrincipalCallback is missing or an exception occurs.
This allows a subsequent, unprivileged user processed by the same worker thread to inherit these residual security roles, leading to Broken Access Control and Privilege Escalation.
See also attached PDF.
Impact
An unauthenticated user may gain ungrated privileges from a previous request (privilege escalation).
Patches
No patches yet.
Workarounds
Do not use Jetty’s JASPI.
Details
- Affected product:
- Apache CXF , Apache Hive , Apache Kafka , Apache Lucene , Apache Solr , Apache Spark , Eclipse Jetty , Spring , activemq , agepredictor , avro , htmlunit , tika
- Affected packages:
- jetty.project @ 11.0.27 (+8256 more)