XML External Entity Reference in Eclipse Lyo
Date: 2022-07
Affected: maven/org.eclipse.lyo:lyo-parent
Attack vector: other
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2021-41042
CWE: CWE-611
CVSS: 4.2 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L)

In Eclipse Lyo versions 1.0.0 to 4.1.0, a TransformerFactory is initialized with the defaults that do not restrict DTD loading when working with RDF/XML. This allows an attacker to cause an external DTD to be retrieved.


Mitigations:

Architectural layers (MAESTRO):