CVE Vulnerability

CVE-2019-20437

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. When a custom claim dialect with an XSS payload is configured in the identity provider basic claim configuration, that payload gets executed, if a user picks up that dialect's URI as the provisioning claim in the advanced claim configuration of the same Identity Provider. The attacker also needs to have privileges to log in to the management console, and to add and update identity provider configurations.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

6.1 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://github.com/cybersecurityworks/Disclosed/issues/20 Exploit Third Party Advisory
https://docs.wso2.com/display/Security/Security+Advisory+WSO2-2019-0635 Vendor Advisory
https://cybersecurityworks.com/zerodays/cve-2019-20437-wso2.html Exploit Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:wso2:api_manager:2.6.0:*:*:*:*:*:*:*
cpe:2.3:a:wso2:identity_server:5.7.0:*:*:*:*:*:*:*
cpe:2.3:a:wso2:identity_server:5.8.0:*:*:*:*:*:*:*
Information

Published : 2020-01-28 01:15

Updated : 2022-11-10 04:48

NVD link : CVE-2019-20437

Mitre link : CVE-2019-20437

Products Affected
No products.
CWE
CWE-79