CVE-2023-27903

Medium

Description

Jenkins 2.393 and earlier, LTS 2.375.3 and earlier creates a temporary file in the default temporary directory with the default permissions for newly created files when uploading a file parameter through the CLI, potentially allowing attackers with access to the Jenkins controller file system to read and write the file before it is used.

SeverityMedium

CVSS4.4

Exploit probability—

Product

Jenkins

PublishedMar 10, 2023

First seenMar 10, 2023

Weakness typeCWE-863Incorrect authorization

How to fix

Update

jenkins jenkins2.375.4, 2.394 or later
org.jenkins-ci.main:jenkins-core2.387.1, 2.375.4, 2.394 or later

Vendor advisories

jenkins.io/security/advisory/2023-03-08/#SECURITY-3058

Affected products

Product	Affected versions	Fixed in
jenkins jenkins	v < 2.375.4, v < 2.394	2.375.4, 2.394
org.jenkins-ci.main:jenkins-coreMaven	2.376 ≤ v < 2.387.1, v < 2.375.4, 2.388 ≤ v < 2.394	2.387.1, 2.375.4, 2.394

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