CVE-2022-27201

Description

Jenkins Semantic Versioning Plugin defines a controller/agent message that processes a given file as XML and returns version information. The XML parser is not configured to prevent XML external entity (XXE) attacks, which is only a problem if XML documents are parsed on the Jenkins controller. Jenkins Semantic Versioning Plugin 1.13 and earlier does not restrict execution of a controller/agent message to agents, and implements no limitations about the file path that can be parsed, allowing attackers able to control agent processes to have Jenkins parse a crafted file that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery. This vulnerability is only exploitable in Jenkins 2.318 and earlier, LTS 2.303.2 and earlier. See the [LTS upgrade guide](https://www.jenkins.io/doc/upgrade-guide/2.303/#upgrading-to-jenkins-lts-2-303-3).

How to fix CVE-2022-27201

To remediate CVE-2022-27201, upgrade the affected package to a fixed version below.

• —upgrade to 1.14 or later

Is CVE-2022-27201 being exploited?

Low — EPSS is 1.3%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• from 0, < 1.14

CVSS scores

References (4)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2022-27201
• PATCHgithub.com/jenkinsci/semantic-versioning-plugin
• WEBwww.jenkins.io/security/advisory/2022-03-15/#SECURITY-2124
• WEBwww.openwall.com/lists/oss-security/2022/03/15/2