CVE-2023-43496

High

Description

Jenkins 2.423 and earlier, LTS 2.414.1 and earlier creates a temporary file in the system temporary directory with the default permissions for newly created files when installing a plugin from a URL, potentially allowing attackers with access to the system temporary directory to replace the file before it is installed in Jenkins, potentially resulting in arbitrary code execution.

SeverityHigh

CVSS8.8

Exploit probability—

Product

Jenkins

PublishedSep 20, 2023

First seenSep 20, 2023

Weakness typeCWE-276CWE-276

How to fix

Update

jenkins jenkins2.414.2, 2.424 or later
org.jenkins-ci.main:jenkins-core2.414.2, 2.424 or later

Vendor advisories

jenkins.io/security/advisory/2023-09-20/#SECURITY-3072

Affected products

Product	Affected versions	Fixed in
jenkins jenkins	v < 2.414.2, v < 2.424	2.414.2, 2.424
org.jenkins-ci.main:jenkins-coreMaven	2.50 ≤ v < 2.414.2, 2.415 ≤ v < 2.424	2.414.2, 2.424

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