CVE-2023-43498

2023-09-2211:55:05

redhat.com

access.redhat.com

jenkins

file uploads

security bypass

local authenticated attacker

multipartformdataparser

cve-2023-43498

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

EPSS

0.001

Percentile

21.4%

JSON

A flaw was found in Jenkins weekly and LTS due to an issue when processing file uploads using the MultipartFormDataParser. By sending a specially crafted request, a local authenticated attacker could bypass security restrictions and access the Jenkins controller file system to read and write the files before they are used.