SECURITY ADVISORY WSO2-2024-3450/CVE-2024-5848

Published: November 10, 2024

Version: 1.0.0

Severity: Medium

CVSS Score: 6.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

AFFECTED PRODUCTS

  • WSO2 API Manager : 4.3.0, 4.2.0, 4.1.0, 4.0.0, 3.2.1, 3.2.0, 3.1.0
  • WSO2 Open Banking AM : 2.0.0

Info

Please note that this announcement includes only the product versions affected as per our backporting policy.

OVERVIEW

Reflected Cross Site Scripting (XSS) vulnerability.

DESCRIPTION

Due to lack of validation, user supplies data directly pass into the server response of a vulnerable services endpoint, without any sanitization or encoding.

IMPACT

By leveraging the XSS attack, a malicious actor can make the browser get redirected to a malicious website, make changes in the UI of the web page, retrieve information from the browser or harm otherwise. However, since all the session related sensitive cookies are set with httpOnly flag and protected, session hijacking or similar attacks would not be possible. However, if the service endpoint is not permitted at the gateway level, the impact would be further reduced.

SOLUTION

Community Users (Open Source)

Apply the relevant fixes to your product using the public fix(es) provided below.

Commercial Users

Update your product to the specified update level—or a higher update level—to apply the fix.

Info

If you are a WSO2 customer with Support Subscription, please use WSO2 Updates in order to apply the fix.

Product Name Product Version U2 Update Level
wso2-obam 2.0.0 349
wso2am 3.1.0 285
wso2am 3.2.0 375
wso2am 3.2.1 10
wso2am 4.0.0 300
wso2am 4.1.0 160
wso2am 4.2.0 92
wso2am 4.3.0 10

For All Users

If applying the fix or update is not feasible, migrate to the latest unaffected version of the respective WSO2 product(s).

In addition, apply the given configuration below to the _OpenService_.xml file located in <APIM_HOME>/repository/deployment/server/synapse-configs/default/api/ if the file does not contain them after the update.

<inSequence>
    <class name="org.wso2.carbon.apimgt.gateway.mediators BotDetectionMediator"/>
        <property name="messageType" value="text/plain" scope="axis2" type="STRING"/>
        <property name="NO_ENTITY_BODY" value="true" scope="axis2" type="BOOLEAN"/>
    <respond/>
</inSequence>