Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS1wdnd4LTNqeDUtMjRyMs4AAoE-

Lack of type validation in agent related REST API in Jenkins

Jenkins 2.286 and earlier, LTS 2.277.1 and earlier does not validate the type of object created after loading the data submitted to the config.xml REST API endpoint of a node.

This allows attackers with Computer/Configure permission to replace a node with one of a different type.

Jenkins 2.287, LTS 2.277.2 validates the type of object created and rejects objects of unexpected types.

Permalink: https://github.com/advisories/GHSA-pvwx-3jx5-24r2
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1wdnd4LTNqeDUtMjRyMs4AAoE-
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: almost 2 years ago
Updated: 4 months ago

CVSS Score: 4.3
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Identifiers: GHSA-pvwx-3jx5-24r2, CVE-2021-21639
References:

• https://nvd.nist.gov/vuln/detail/CVE-2021-21639
• https://www.jenkins.io/security/advisory/2021-04-07/#SECURITY-1721
• http://www.openwall.com/lists/oss-security/2021/04/07/2
• https://github.com/jenkinsci/jenkins/commit/84210baed0c866bdee3e59271f98a767a14a5509
• https://github.com/advisories/GHSA-pvwx-3jx5-24r2

Repository: https://github.com/jenkinsci/jenkins
Blast Radius: 1.0

Affected Packages