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Improper Limitation of a Pathname to a Restricted Directory in Jenkins

Moderate severity GitHub Reviewed Published May 13, 2022 to the GitHub Advisory Database • Updated Mar 1, 2024

Package

maven org.jenkins-ci.main:jenkins-core (Maven)

Affected versions

< 2.89.4
>= 2.90, < 2.107

Patched versions

2.89.4
2.107

Description

Jenkins before 2.107 and Jenkins LTS before 2.89.4 did not properly prevent specifying relative paths that escape a base directory for URLs accessing plugin resource files. This allowed users with Overall/Read permission to download files from the Jenkins master they should not have access to. On Windows, any file accessible to the Jenkins master process could be downloaded. On other operating systems, any file within the Jenkins home directory accessible to the Jenkins master process could be downloaded.

References

Published by the National Vulnerability Database Feb 20, 2018
Published to the GitHub Advisory Database May 13, 2022
Reviewed Jun 28, 2022
Last updated Mar 1, 2024

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS score

28.819%
(97th percentile)

Weaknesses

CVE ID

CVE-2018-6356

GHSA ID

GHSA-5p59-v5wm-77v4

Source code

Credits

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