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XML external entity (XXE) attacks in Jenkins Xcode integration Plugin

High severity GitHub Reviewed Published Mar 18, 2022 to the GitHub Advisory Database • Updated Dec 7, 2023

Package

maven org.jenkins-ci.plugins:xcode-plugin (Maven)

Affected versions

< 2.0.15

Patched versions

2.0.15

Description

Jenkins Xcode integration Plugin 2.0.14 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

References

Published by the National Vulnerability Database May 11, 2021
Reviewed May 19, 2021
Published to the GitHub Advisory Database Mar 18, 2022
Last updated Dec 7, 2023

Severity

High

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
Low
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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

EPSS score

0.065%
(30th percentile)

Weaknesses

CVE ID

CVE-2021-21656

GHSA ID

GHSA-wfxp-4qgw-qp3c

Source code

No known source code
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