XML External Entity injection in National Instruments products - CVE-2023-5136

Detailed vulnerability description

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

The vulnerability exists due to insufficient validation of user-supplied input within the processing of GPX files. A remote attacker 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.

How to mitigate CVE-2023-5136

Sources

• https://www.ni.com/en/support/documentation/supplemental/23/incorrect-permission-assignment-in-the-topografix-dataplug-for-gpx.html
• https://www.zerodayinitiative.com/advisories/ZDI-23-1622/