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Improper Authentication in Spring Authorization Server

Moderate severity GitHub Reviewed Published Mar 20, 2024 to the GitHub Advisory Database • Updated Dec 5, 2024

Package

maven org.springframework.security:spring-security-oauth2-authorization-server (Maven)

Affected versions

< 1.1.6
>= 1.2.0, < 1.2.3

Patched versions

1.1.6
1.2.3

Description

Spring Authorization Server versions 1.0.0 - 1.0.5, 1.1.0 - 1.1.5, 1.2.0 - 1.2.2 and older unsupported versions are susceptible to a PKCE Downgrade Attack for Confidential Clients.

Specifically, an application is vulnerable when a Confidential Client uses PKCE for the Authorization Code Grant.

An application is not vulnerable when a Public Client uses PKCE for the Authorization Code Grant.

References

Published by the National Vulnerability Database Mar 20, 2024
Published to the GitHub Advisory Database Mar 20, 2024
Reviewed Mar 20, 2024
Last updated Dec 5, 2024

Severity

Moderate

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
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

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:R/S:C/C:L/I:L/A:N

EPSS score

0.043%
(11th percentile)

Weaknesses

CVE ID

CVE-2024-22258

GHSA ID

GHSA-x637-x8p3-5p22

Source code

github.com/spring-projects/spring-authorization-server
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