SB2021121704 - XXE in Apache NiFi

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Main Vulnerability Database SB2021121704

SB2021121704 - XXE in Apache NiFi

Published: December 17, 2021

Security Bulletin ID SB2021121704
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) XML External Entity injection (CVE-ID: CVE-2021-44145)

The vulnerability allows a remote user to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied XML input within the TransformXML processor. A remote user can pass a specially crafted XML code to the affected application and view contents of arbitrary files on the system or initiate requests to external systems.

Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.


Remediation

Install update from vendor's website.

References