Security Advisory WSO2-2020-0728
- Former user (Deleted)
- Former user (Deleted)
Published: 17th August 2020
Version: 1.0.0
Severity: Medium
CVSS Score: 6.5 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H)
AFFECTED PRODUCTS
WSO2 API Manager : 3.0.0 or earlier
WSO2 API Manager Analytics : 2.5.0, 2.2.0
WSO2 API Microgateway : 2.2.0
WSO2 Enterprise Integrator : 6.3.0, 6.2.0
WSO2 Identity Server Analytics : 5.6.0 or earlier
OVERVIEW
It has identified that Management Console is vulnarable to a XXE attack when updating a EventReceiver.
DESCRIPTION
In event-receiver component, secure processing feature has not been enabled for XML parsers to prevent XXE attacks.
IMPACT
The XXE attacks can affect any trusted system respective to the machine where the parser is located. This attack may result in disclosing local files, denial of service, server-side request forgery, port scanning and other system impacts on affected systems.
SOLUTION
If you are using an affected product version, it is highly recommended to migrate to the latest released version to receive security fixes.
You may also apply the relevant fixes based on the changes from the public fix: https://github.com/wso2/carbon-analytics-common/pull/743
Note: If you are a WSO2 customer with Support Subscription, please use WSO2 Update Manager (WUM) updates in order to apply the fix.
CREDITS
WSO2 thanks, Krzysztof Przybylski for responsibly reporting the identified issue and working with us as we addressed it.