Information disclosure in NI DIAdem, VeriStand and FlexLogger

1) XML External Entity injection

EUVDB-ID: #VU83207

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-5136

CWE-ID: CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')

Exploit availability: No

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

DIAdem: 2023 Q2

VeriStand: 2023 Q4

FlexLogger: 2023 Q4

External links

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

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.