(Pwn2Own) Triangle MicroWorks SCADA Data Gateway Use of Hard-coded Credentials Authentication Bypass Vulnerability

August 4th, 2023
ZDI-23-1026 ZDI-CAN-20509

CVE ID

CVE-2023-39458

CVSS Score

5.3 AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Vendors

Triangle MicroWorks

Affected Products

SCADA Data Gateway

Vulnerability Details

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of Triangle MicroWorks SCADA Data Gateway. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of certificates. The service uses a hard-coded default SSL certificate. An attacker can leverage this vulnerability to bypass authentication on the system.

Additional Details

Triangle MicroWorks has issued an update to correct this vulnerability. More details can be found at:
https://www.trianglemicroworks.com/products/scada-data-gateway/what's-new

Disclosure Timeline

  • 2023-02-24 - Vulnerability reported to vendor
  • 2023-08-04 - Coordinated public release of advisory

Credit

Team ECQ

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