PT-2023-1845 · B&R · B&R Aprol

Published 2023-02-08 · Updated 2023-02-18 · CVE-2022-43765

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions B&R APROL versions prior to R 4.2-07

Description The issue is related to incorrect checking of the return value of a method or function in the Tbase database server of the B&R APROL software solution for monitoring industrial systems. This can be exploited by a remote attacker to cause a denial of service. The vulnerability is triggered by specially formatted data packages sent to port 55502/tcp.

Recommendations For versions prior to R 4.2-07, update to version R 4.2-07 or later to resolve the issue. As a temporary workaround, consider restricting access to port 55502/tcp to minimize the risk of exploitation.

Fix

Unchecked Return Value

Weakness Enumeration

CWE-252

Related Identifiers

BDU:2023-01443

CVE-2022-43765

Affected Products

B&R Aprol

References · 5

• https://br-automation.com/downloads_br_productcatalogue/assets/1674823095245-en-original-1.0.pdf · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-01443 · Security Note
• https://osv.dev/vulnerability/CVE-2022-43765 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-43765 · Security Note
• https://t.me/cibsecurity/57763 · Telegram Post