BIT-jenkins-2023-43498

2024-03-0610:54:16

Google

osv.dev

jenkins

lts

versions

security vulnerability

file upload

temporary files

default permissions

attackers

controller file system

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

Confidence

Low

EPSS

0.001

Percentile

21.4%

JSON

In Jenkins 2.423 and earlier, LTS 2.414.1 and earlier, processing file uploads using MultipartFormDataParser creates temporary files in the default system temporary directory with the default permissions for newly created files, potentially allowing attackers with access to the Jenkins controller file system to read and write the files before they are used.