WSO2 API Control Plane improper authorization

Summaryinfo

A vulnerability classified as critical was found in WSO2 API Control Plane, API Manager, Carbon OAuth, Identity Server, Identity Server as Key Manager, Open Banking AM, Open Banking IAM, Traffic Manager and Universal Gateway. This affects an unknown function. Such manipulation leads to improper authorization. This vulnerability is referenced as CVE-2024-9517. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in WSO2 API Control Plane, API Manager, Carbon OAuth, Identity Server, Identity Server as Key Manager, Open Banking AM, Open Banking IAM, Traffic Manager and Universal Gateway and classified as critical. Affected by this issue is an unknown function. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The refresh token grant type in WSO2 products fails to re-validate account status before issuing new access tokens. This weakness allows an attacker to obtain valid access tokens for user accounts even after they have been blocked by the user store, bypassing account lockout mechanisms. This vulnerability can lead to unauthorized access to user accounts and their associated resources. Attackers can leverage this to perform actions on behalf of blocked users, potentially leading to privilege escalation or data exfiltration depending on the permissions of the compromised account.

The advisory is shared for download at security.docs.wso2.com. This vulnerability is handled as CVE-2024-9517 since 10/04/2024. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/02/2026). The MITRE ATT&CK project declares the attack technique as T1548.002.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Banking Software

Vendor

• WSO2

Name

• API Control Plane
• API Manager
• Carbon OAuth
• Identity Server
• Identity Server as Key Manager
• Open Banking AM
• Open Banking IAM
• Traffic Manager
• Universal Gateway

License

• commercial

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