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Access Control Bypass in Spring Security

Critical severity GitHub Reviewed Published Jul 19, 2023 to the GitHub Advisory Database • Updated Oct 28, 2024

Package

maven org.springframework.security:spring-security-config (Maven)

Affected versions

>= 5.6.0, < 5.6.12
>= 5.7.0, < 5.7.10
>= 5.8.0, < 5.8.5
>= 6.0.0, < 6.0.5
>= 6.1.0, < 6.1.2

Patched versions

5.6.12
5.7.10
5.8.5
6.0.5
6.1.2

Description

Using "**" as a pattern in Spring Security configuration for WebFlux creates a mismatch in pattern matching between Spring Security and Spring WebFlux, and the potential for a security bypass.

References

Published by the National Vulnerability Database Jul 19, 2023
Published to the GitHub Advisory Database Jul 19, 2023
Reviewed Jul 31, 2023
Last updated Oct 28, 2024

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
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:N/S:U/C:H/I:H/A:N

EPSS score

0.283%
(69th percentile)

Weaknesses

CVE ID

CVE-2023-34034

GHSA ID

GHSA-3h6f-g5f3-gc4w

Source code

No known source code

Credits

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