PKCE Downgrade Attack for Confidential Clients
CVE-2024-22258

6.1MEDIUM

Key Information:

Vendor

Spring

Status
Spring
Vendor
CVE Published:
20 March 2024

What is CVE-2024-22258?

The vulnerability in Spring Authorization Server allows for a PKCE Downgrade Attack that specifically affects versions 1.0.0 through 1.2.2. This occurs when a Confidential Client utilizes PKCE (Proof Key for Code Exchange) during the Authorization Code Grant process. In such cases, an attacker could exploit the vulnerability to compromise the confidentiality and integrity of the authorization flow, making it crucial for organizations to apply security measures and updates to mitigate the risks associated with this vulnerability.

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Affected Version(s)

Spring 1.0.x

Spring 1.0.x < 1.0.6

Spring 1.1.x < 1.1.6

References

https://spring.io/security/cve-2024-22258

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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