Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS02cTRnLTg0ZjMtbXc3NM4AAqOq

Improper handling of equivalent directory names on Windows in Jenkins

Jenkins stores jobs and other entities on disk using their name shown on the UI as file and folder names.

On Windows, when specifying a file or folder with a trailing dot character (example.), the file or folder will be treated as if that character was not present (example). As both are legal names for jobs and other entities in Jenkins 2.314 and earlier, LTS 2.303.1 and earlier, this could allow users with the appropriate permissions to change or replace configurations of jobs and other entities.

Jenkins 2.315, LTS 2.303.2 does not allow names of jobs and other entities to end with a dot character.

Permalink: https://github.com/advisories/GHSA-6q4g-84f3-mw74
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS02cTRnLTg0ZjMtbXc3NM4AAqOq
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: almost 2 years ago
Updated: 4 months ago

CVSS Score: 6.3
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Identifiers: GHSA-6q4g-84f3-mw74, CVE-2021-21682
References:

• https://nvd.nist.gov/vuln/detail/CVE-2021-21682
• https://www.jenkins.io/security/advisory/2021-10-06/#SECURITY-2424
• http://www.openwall.com/lists/oss-security/2021/10/06/1
• https://github.com/jenkinsci/jenkins/commit/c2c2b59071265aea07f88d5e95297c0a433921c3
• https://github.com/advisories/GHSA-6q4g-84f3-mw74

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

Affected Packages