CVE-2022-29265

Improper Restriction of XML External Entity References in Multiple Components

Description

Multiple components in Apache NiFi 0.0.1 to 1.16.0 do not restrict XML External Entity references in the default configuration. The Standard Content Viewer service attempts to resolve XML External Entity references when viewing formatted XML files. The following Processors attempt to resolve XML External Entity references when configured with default property values: - EvaluateXPath - EvaluateXQuery - ValidateXml Apache NiFi flow configurations that include these Processors are vulnerable to malicious XML documents that contain Document Type Declarations with XML External Entity references. The resolution disables Document Type Declarations in the default configuration for these Processors, and disallows XML External Entity resolution in standard services.

Remediation

Workaround:

  • Disabling the Validate DTD Processor Property in EvaluateXPath and EvaluateXQuery mitigates the vulnerability for those Processors. No mitigation is available for the ValidateXml Processor or the Standard Content Viewer.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.64%
Vendor Advisory apache.org Vendor Advisory apache.org
Affected: Apache Software Foundation Apache NiFi
Published at:
Updated at:

References

Link Tags
https://nifi.apache.org/security.html#CVE-2022-29265 vendor advisory
https://lists.apache.org/thread/47od9kr9n4cyv0mv81jh3pkyx815kyjl mailing list vendor advisory mitigation

Frequently Asked Questions

What is the severity of CVE-2022-29265?
CVE-2022-29265 has been scored as a high severity vulnerability.
How to fix CVE-2022-29265?
As a workaround for remediating CVE-2022-29265: Disabling the Validate DTD Processor Property in EvaluateXPath and EvaluateXQuery mitigates the vulnerability for those Processors. No mitigation is available for the ValidateXml Processor or the Standard Content Viewer.
Is CVE-2022-29265 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-29265 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-29265?
CVE-2022-29265 affects Apache Software Foundation Apache NiFi.
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