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Potential session hijack in Apache CXF

Critical severity GitHub Reviewed Published Nov 8, 2019 to the GitHub Advisory Database • Updated Feb 1, 2023

Package

maven org.apache.cxf:cxf (Maven)

Affected versions

< 3.2.11
>= 3.3.0, < 3.3.4

Patched versions

3.2.11
3.3.4

Description

Apache CXF before 3.3.4 and 3.2.11 provides all of the components that are required to build a fully fledged OpenId Connect service. There is a vulnerability in the access token services, where it does not validate that the authenticated principal is equal to that of the supplied clientId parameter in the request. If a malicious client was able to somehow steal an authorization code issued to another client, then they could exploit this vulnerability to obtain an access token for the other client.

References

Published by the National Vulnerability Database Nov 6, 2019
Reviewed Nov 7, 2019
Published to the GitHub Advisory Database Nov 8, 2019
Last updated Feb 1, 2023

Severity

Critical

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS score

1.539%
(87th percentile)

Weaknesses

CVE ID

CVE-2019-12419

GHSA ID

GHSA-cw6w-q88j-6mqf

Source code

No known source code
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