// For flags

CVE-2021-4314

 

Severity Score

5.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

It is possible to manipulate the JWT token without the knowledge of the JWT secret and authenticate without valid JWT token as any user. This is happening only in the situation when zOSMF doesn’t have the APAR PH12143 applied. This issue affects: 1.16 versions to 1.19. What happens is that the services using the ZAAS client or the API ML API to query will be deceived into believing the information in the JWT token is valid when it isn’t. It’s possible to use this to persuade the southbound service that different user is authenticated.

Es posible manipular el token JWT sin conocer el secreto de JWT y autenticarse sin un token JWT válido como cualquier usuario. Esto sucede sólo en la situación en la que zOSMF no tiene aplicado el APAR PH12143. Este problema afecta: versiones 1.16 a 1.19. Lo que sucede es que los servicios que utilizan el cliente ZAAS o la API API ML para realizar consultas serán engañados haciéndoles creer que la información en el token JWT es válida cuando no lo es. Es posible utilizar esto para persuadir al servicio en dirección sur de que un usuario diferente está autenticado.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-01-18 CVE Reserved
  • 2023-01-18 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-08-10 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-269: Improper Privilege Management
  • CWE-287: Improper Authentication
CAPEC
References (1)
URL Tag Source
https://github.com/zowe/api-layer Product
URL Date SRC
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linuxfoundation
Search vendor "Linuxfoundation"
 Zowe Api Mediation Layer
Search vendor "Linuxfoundation" for product "Zowe Api Mediation Layer"
 >= 1.16 <= 1.19
Search vendor "Linuxfoundation" for product "Zowe Api Mediation Layer" and version " >= 1.16 <= 1.19"
-
Affected