#VU67060 Improper access control in TMW IEC 61850 Software Library and TMW IEC 60870-6 (ICCP/TASE.2) Software Library - CVE-2022-38138

Vulnerability identifier: #VU67060

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-38138

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
TMW IEC 61850 Software Library
Universal components / Libraries / Libraries used by multiple products
TMW IEC 60870-6 (ICCP/TASE.2) Software Library
Universal components / Libraries / Libraries used by multiple products

Vendor: Triangle MicroWorks, Inc.

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to access given to a small number of uninitialized pointers within their code. A remote attacker can bypass implemented security restrictions and perform a denial of service (DoS) attack. on the system.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

TMW IEC 61850 Software Library: 5.0.1 - 11.2.0

TMW IEC 60870-6 (ICCP/TASE.2) Software Library: 4.4.3

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External links
https://ics-cert.us-cert.gov/advisories/icsa-22-249-01

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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.