CVE-2019-20436

Severity Score

6.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Se detectó un problema en WSO2 API Manager versión 2.6.0, WSO2 IS as Key Manager versión 5.7.0 y WSO2 Identity Server versión 5.8.0. Si se presenta un dialecto de reclamo configurado con una carga útil XSS en el URI de dialecto, y un usuario recoge el URI de este dialecto y lo agrega como el dialecto de reclamo del proveedor de servicios mientras configura el proveedor de servicios, esa carga es ejecutada. El atacante también necesita contar con privilegios para iniciar sesión en la consola de administración y para agregar y configurar dialectos de reclamo.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-01-27 CVE Reserved
2020-01-27 CVE Published
2023-10-14 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC
https://cybersecurityworks.com/zerodays/cve-2019-20436-wso2.html	2024-08-05
https://github.com/cybersecurityworks/Disclosed/issues/19	2024-08-05

URL	Date	SRC

URL	Date	SRC
https://docs.wso2.com/display/Security/Security+Advisory+WSO2-2019-0634	2022-11-10

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Wso2 Search vendor "Wso2"		Api Manager Search vendor "Wso2" for product "Api Manager"				2.6.0 Search vendor "Wso2" for product "Api Manager" and version "2.6.0"		-		Affected
Wso2 Search vendor "Wso2"		Identity Server Search vendor "Wso2" for product "Identity Server"				5.7.0 Search vendor "Wso2" for product "Identity Server" and version "5.7.0"		-		Affected
Wso2 Search vendor "Wso2"		Identity Server Search vendor "Wso2" for product "Identity Server"				5.8.0 Search vendor "Wso2" for product "Identity Server" and version "5.8.0"		-		Affected