CVE-2021-21693 Information

Description

When creating temporary files agent-to-controller access to create those files is only checked after they’ve been created in Jenkins 2.318 and earlier LTS 2.303.2 and earlier.

CVSS Vector

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

Reference

https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8