

Security Advisory WSO2-2020-0734

Published: July 01, 2020

Version: 1.0.0

Severity: Medium

CVSS Score: 5.5 (CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:H/A:L)

---

AFFECTED PRODUCTS

• WSO2 API Manager : 3.1.0 , 3.0.0
• WSO2 IS as Key Manager : 5.10.0 , 5.9.0

OVERVIEW

Subscription workflow status of a tenant, can be modified by super tenant credentials via the REST API.

DESCRIPTION

Updating workflow status can be performed by the admin REST API. This api is secured with basic authentication. The vulnerability here is that a workflow reference of a tenant can be modified by executing the REST API with super admin credentials.

IMPACT

This allows cross tenant access for subscription workflow update via REST API.

SOLUTION

If you are using an affected product version, it is highly recommended to migrate to the latest released version to receive security fixes.

Otherwise, you may apply the relevant fixes to the product based on the public fix(s):

• https://github.com/wso2/carbon-apimgt/pull/8393

Info

If you are a WSO2 customer with a support subscription, use WSO2 Update Manager(WUM) updates in order to apply the fix to the affected versions.

CREDITS

WSO2 thanks, {{reporter}} for responsibly reporting the identified issue and working with us as we addressed it.