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Ucum-java has an XXE vulnerability in XML parsing

High severity GitHub Reviewed Published Dec 13, 2024 in FHIR/Ucum-java • Updated Dec 13, 2024

Package

maven org.fhir:ucum (Maven)

Affected versions

< 1.0.9

Patched versions

1.0.9

Description

Impact

XML parsing performed by the UcumEssenceService is vulnerable to XML external entity injections. A processed XML file with a malicious DTD tag could produce XML containing data from the host system. This impacts use cases where ucum is being used to within a host where external clients can submit XML.

Patches

Release 1.0.9 of ucum fixes this vulnerability

Workarounds

Ensure that the source xml for instantiating UcumEssenceService is trusted.

References

References

@dotasek dotasek published to FHIR/Ucum-java Dec 13, 2024
Published by the National Vulnerability Database Dec 13, 2024
Published to the GitHub Advisory Database Dec 13, 2024
Reviewed Dec 13, 2024
Last updated Dec 13, 2024

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
None
User interaction
None
Scope
Changed
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:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

EPSS score

0.043%
(11th percentile)

Weaknesses

CVE ID

CVE-2024-55887

GHSA ID

GHSA-w9j7-phm3-f97j

Source code

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