Subnet Solutions PowerSYSTEM Center Out-of-Bounds Read
Subnet Solutions PowerSYSTEM Center's SMTPS notification service can be affected by importing an EC certificate with crafted F2m parameters, which can lead to excessive CPU consumption during the evaluation of the curve parameters.
Subnet Solutions Inc. recommends users update PowerSYSTEM Center (PSC) to the latest versions:
* PSC 2020 Update 25
* PSC 2024
For assistance with updating PSC, reach out directly to Subnet Solutions.
Configurations
Workarounds
If updating PSC is not possible, Subnet Solutions Inc recommends users apply the following mitigations to help reduce risk:
* Disable Notification Service, Email Dispatch Service, or the outgoing email server in Notifications/Settings.
* Configure PowerSYSTEM Center DCS network firewall to only allow connections to an approved and authorized email server.
* Manage administrator access to PowerSYSTEM Center DCS operating system.
* Monitor user activity records to ensure users are following acceptable usage policies of the application.
Exploits
Credits
finder
Subnet Solutions Inc. reported this vulnerability to CISA.