CVE-2019-20436 Information

Description

An issue was discovered in WSO2 API Manager 2.6.0 WSO2 IS as Key Manager 5.7.0 and WSO2 Identity Server 5.8.0. If there is a claim dialect configured with an XSS payload in the dialect URI and a user picks up this dialect’s URI and adds it as the service provider claim dialect while configuring the service provider that payload gets executed. The attacker also needs to have privileges to log in to the management console and to add and configure claim dialects.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Reference

https://cybersecurityworks.com/zerodays/cve-2019-20436-wso2.html https://docs.wso2.com/display/Security/Security+Advisory+WSO2-2019-0634 https://github.com/cybersecurityworks/Disclosed/issues/19

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

6.1