CVEvulnerability

CVE-2021-4314

5.3 MEDIUM Published 2023-01-18 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-01-18
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weaknesses
CWE-269, CWE-287

Description

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.

Affected configurations

• linuxfoundation zowe api mediation layer (>= 1.16.0 < 1.19.0)

Related

Weakness · CWE (2)

  • CWE-269 Improper Privilege Management weakness
  • CWE-287 Improper Authentication weakness

References