XML External Entity (XXE) Injection Affecting apache-ivy package, versions *


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.37% (73rd percentile)

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  • Snyk IDSNYK-RHEL8-APACHEIVY-5852553
  • published23 Aug 2023
  • disclosed20 Aug 2023

Introduced: 20 Aug 2023

CVE-2022-46751  (opens in a new tab)
CWE-611  (opens in a new tab)
CWE-91  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:8 apache-ivy.

NVD Description

Note: Versions mentioned in the description apply only to the upstream apache-ivy package and not the apache-ivy package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

Improper Restriction of XML External Entity Reference, XML Injection (aka Blind XPath Injection) vulnerability in Apache Software Foundation Apache Ivy.This issue affects any version of Apache Ivy prior to 2.5.2.

When Apache Ivy prior to 2.5.2 parses XML files - either its own configuration, Ivy files or Apache Maven POMs - it will allow downloading external document type definitions and expand any entity references contained therein when used.

This can be used to exfiltrate data, access resources only the machine running Ivy has access to or disturb the execution of Ivy in different ways.

Starting with Ivy 2.5.2 DTD processing is disabled by default except when parsing Maven POMs where the default is to allow DTD processing but only to include a DTD snippet shipping with Ivy that is needed to deal with existing Maven POMs that are not valid XML files but are nevertheless accepted by Maven. Access can be be made more lenient via newly introduced system properties where needed.

Users of Ivy prior to version 2.5.2 can use Java system properties to restrict processing of external DTDs, see the section about "JAXP Properties for External Access restrictions" inside Oracle's "Java API for XML Processing (JAXP) Security Guide".

CVSS Base Scores

version 3.1