Vulnerability · Published Mar 8, 2023 · Assigned by jenkins

CVE-2023-27903

Medium 4.4

In plain English

A medium-severity incorrect authorization in Jenkins from Jenkins Project. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.4Medium

Exploit odds (30 days)0.2%top 84.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Maven	org.jenkins-ci.main:jenkins-core	2.387.1	GHSA-584m-7r4m-8j6v
Maven	org.jenkins-ci.main:jenkins-core	2.375.4	GHSA-584m-7r4m-8j6v
Maven	org.jenkins-ci.main:jenkins-core	2.394	GHSA-584m-7r4m-8j6v

Affected products (as reported)

Vendor	Product	Versions
Jenkins Project	Jenkins	see references

Weakness: CWE-863 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References

Jenkins Security Advisory 2023-03-08 vendor-advisory