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Jenkins Token Macro Plugin's recursive token expansion results in information disclosure and DoS

Moderate severity GitHub Reviewed Published May 13, 2022 to the GitHub Advisory Database • Updated Dec 15, 2023

Package

maven org.jenkins-ci.plugins:token-macro (Maven)

Affected versions

<= 2.5

Patched versions

2.6

Description

Jenkins Token Macro Plugin recursively applied token expansion.

This could be used by users able to affect input to token expansion (such as change log messages), to inject additional tokens into the input, which would then be expanded, resulting in information disclosure (for example values of environment variables), or denial of service.

Most tokens have been changed to no longer recursively apply token expansion.

References

Published by the National Vulnerability Database Feb 6, 2019
Published to the GitHub Advisory Database May 13, 2022
Reviewed Oct 25, 2023
Last updated Dec 15, 2023

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
None
Integrity
None
Availability
High

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:N/I:N/A:H

EPSS score

0.244%
(64th percentile)

Weaknesses

CVE ID

CVE-2019-1003011

GHSA ID

GHSA-23h9-m55m-c5jp

Source code

No known source code
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