OSIsoft PI Vision

Risk Summary

Successful exploitation of these vulnerabilities may allow disclosure of sensitive information and limit the availability of the system.

CVEs (4)

Remediations

• OSIsoft recommends users upgrade to PI Vision 2019 to resolve these issues.
• CVE-2019-18275: If upgrade is not an option, administrators should regularly audit the AF hierarchy to ensure that there are no unexpected or unknown elements/attributes. It is recommended that security on elements in AF be configured and enforced in addition to configuring PI point security.
• Potential unauthorized viewing of PI System data due to this issue is limited to permissions granted to the PI Vision Application Pool Identity. Configure a dedicated identity mapping for PI Vision servers and manage permissions in accordance with a data classification policy.
• Similarly, which data items are available to PI Vision is controlled by the PI Vision Administrators through the Administrative site. Only add data sources to PI Vision that you can verify as legitimate with appropriate access control configured.
• To limit exposure if a standard domain account is used to run PI Vision AppPools, remove the password entry from the setup log files immediately. The vulnerable log file is %pihome%\dat\SetupPIVision.log
• For more information and workaround details for these vulnerabilities, please refer to OSIsoft's Security Bulletin (registration required): OSIsoft releases security update in PI Vision 2019
• CVE-2019-18271 and CVE-2019-18273: All access to the AF Server is protected by Windows authentication, so the modifications to AF data items required by an attacker would have to be performed by a user with write access to either the AF hierarchy or templates. Periodic review of AF Server permissions to ensure only intended users are granted write access to elements, element templates, event frame templates, and databases and servers configured on the PI Vision admin site is a good practice to reduce exposure.
• CVE-2019-18244: Provision and use domain Group Managed Service Accounts or use the default NetworkService account to run PI Vision AppPools—there is no exposure to this vulnerability when using either of these account types.

Affected Vendors

Affected Products (3)

Affected Sectors

Multiple