ICS Advisories

Risk evaluation

ABB is aware of a vulnerability in the product versions listed as affected in the advisory. An attacker who successfully exploited this vulnerability could cause the product to stop or make the product inaccessible.

Mitigation summary

ABB recommends using Freelance Extended User Management instead of Security Lock. Freelance Extended User Management is based on Windows user accounts and is available for Freelance 2019 or higher. For Freelance 2016 and earlier, please refer to chapter “General Security Information”. A fix for Freelance Security Lock is in preparation and will be announced in this updated document. Refer to section “General security recommendations” for further advise on how to keep your system secure. To reduce the likelihood of exploitation via keyboard shortcuts: - disable unnecessary accessibility features - use hardened OS configurations that suppress system-level shortcuts - implement BIOS/UEFI-level restrictions on keyboard input during runtime.

Risk evaluation

ABB became aware of vulnerability in the products versions listed as affected in the advisory. An update is available that resolves the reported vulnerabilities. An attacker who successfully exploited any of these vulnerabilities could potentially compromise the system in different ways.

Mitigation summary

ABB has investigated these vulnerabilities to provide adequate protection to customers. The problem is corrected in the following product versions: T-MAC Plus version 4.0-25 ABB recommends that customers apply the update at earliest convenience.

Risk evaluation

ABB is aware of public reports of vulnerabilities in 7-Zip version 18.5 and Microsoft Azure Data Studio version 1.32 included in the product versions listed as affected in the advisory. The vulnerability in 7-Zip can be exploited if attacker gains control over the system and extracts a malicious file using this version of 7-Zip. Otherwise, the attacker must force the user to visit malicious websites or click links and extract the package through 7-zip. Microsoft Azure Data Studio gets installed along with SQL Server Management Studio. An attacker who successfully exploits vulnerability in Microsoft Azure Data studio may compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. if the Authentication, Authorization and Accountability is not configured properly in the system. However, none of the products listed above uses Microsoft Azure Data Studio. Microsoft Azure Data Studio is automatically removed from the system from System 800xA 7.0 onwards. These vulnerabilities may appear when the product media is scanned. However, they can only be ex-ploited if the vulnerable software is installed on the system. For this reason, it is strongly advised to uninstall outdated or vulnerable versions of third-party software immediately.

Mitigation summary

Workarounds are specific measures that a user can take to help block an attack, for example, temporarily disabling the vulnerable feature may remove the exposure with well-known impact on functionality. There are no workarounds. Uninstalling the affected third-party software fully eliminates the risk of vulnerabilities. Refer to the section ‘Recommended immediate actions’.

Risk evaluation

ABB became aware of vulnerabilities in AC500 V2 listed as affected in the advisory. An attacker who successfully exploited this vulnerability could access fragments of Modbus telegrams that have been sent earlier by that PLC

Mitigation summary

The vulnerabilities have been resolved in the following product versions: AC500 V2 firmware version 2.5.3 (released in 2016) and later