ICS Advisory (ICSA-15-225-01)

OSIsoft PI Data Archive Server Vulnerabilities

Click to Tweet.
Click to send to Facebook.
Click to Share.

Legal Notice

All information products included in https://us-cert.cisa.gov/ics are provided "as is" for informational purposes only. The Department of Homeland Security (DHS) does not provide any warranties of any kind regarding any information contained within. DHS does not endorse any commercial product or service, referenced in this product or otherwise. Further dissemination of this product is governed by the Traffic Light Protocol (TLP) marking in the header. For more information about TLP, see https://us-cert.cisa.gov/tlp/.



OSIsoft has identified 56 vulnerabilities in its own PI System software. OSIsoft has produced a new version of Data Archive (Version 3.4.395.64) to mitigate these issues.

Some of these vulnerabilities could be exploited remotely.


OSIsoft reports that the vulnerabilities affect the following versions:

  • All versions of the PI Data Archive prior to Version 3.4.395.64.


An attacker who exploits these vulnerabilities could create a denial-of-service condition or allow remote code execution on the Windows OS running this software.


The issues were rated by OSIsoft using the Common Vulnerability Scoring System (CVSS)a as follows:

  • 21 high (CVSS: 6.8-10),
  • 27 medium (CVSS: 3.4-6.7), and
  • 8 low (CVSS: 0-3.3).

The high-level security issues that are addressed in PI Data Archive 2015 include:

  • CWE-20b : Improper Input Validation (6 issues),
  • CWE-250c : Execution with Unnecessary Privileges (3 issues),
  • CWE-200d : Information Exposure (1 issue),
  • CWE-476e : NULL Pointer Dereference / Denial of Service (13 issues), and
  • CWE-384f : Session Management (2 issues).

These security-related issues were discovered in PI Data Archive 2012 as part of OSIsoft’s SDL process.



Some of these vulnerabilities could be exploited remotely.


No known public exploits specifically target these vulnerabilities.


OSIsoft recommends that users upgrade to Data Archive 3.4.395.64 released June 25, 2015.

Users may download the latest software version from the following web site:


Users may download release notes for the latest software version from the following web site:


For more information regarding this vulnerability and the recommended mitigation plan, please see OSIsoft’s security bulletin titled “Advisory: PI Server 2015 Multiple Security Updates” at the following location:


Users may also visit the OSIsoft technical support web site: https://techsupport.osisoft.com/


OSIsoft is a US-based company that maintains its headquarters in San Leandro, California, with operations globally.

According to OSIsoft, Data Archive is the core server technology used in the PI System for real time data storage and distribution of instrument data. The PI System uses this core server technology to manage and enhance stored instrument data for retrieval, analysis, and visualization. According to OSIsoft, PI Asset Framework is deployed in several critical infrastructure sectors. OSIsoft estimates that these products are used worldwide.


Severity Matrix is as follows:

Low CVSS 0-3.3Medium CVSS 3.4-6.7High CVSS 6.8-10

NCCIC/ICS-CERT reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

ICS-CERT also provides a section for control systems security recommended practices on the ICS-CERT web page at: http://ics-cert.us-cert.gov/content/recommended-practices. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

Additional mitigation guidance and recommended practices are publicly available in the ICS‑CERT Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies, that is available for download from the ICS-CERT web site (http://ics-cert.us-cert.gov/).

Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to ICS-CERT for tracking and correlation against other incidents.

  • aCVSS Calculator, https://nvd.nist.gov/cvss.cfm?adv&calculator&version=2, web site last accessed August 13, 2015.
  • bCWE-20: Improper Input Validation, http://cwe.mitre.org/data/definitions/20.html, web site last accessed August 13, 2015.
  • cCWE-250: Execution with Unnecessary Privileges, https://cwe.mitre.org/data/definitions/250.html, web site last accessed August 13, 2015.
  • dCWE-200: Information Exposure, https://cwe.mitre.org/data/definitions/200.html, web site last accessed August 13, 2015.
  • eCWE-400: Uncontrolled Resource Consumption ('Resource Exhaustion'), https://cwe.mitre.org/data/definitions/400.html, web site last accessed August 13, 2015.
  • fCWE-384: Session Fixation, https://cwe.mitre.org/data/definitions/384.html, web site last accessed August 13, 2015.

Contact Information

For any questions related to this report, please contact the CISA at:

Email: CISAservicedesk@cisa.dhs.gov
Toll Free: 1-888-282-0870

For industrial control systems cybersecurity information:  https://us-cert.cisa.gov/ics 
or incident reporting:  https://us-cert.cisa.gov/report

CISA continuously strives to improve its products and services. You can help by choosing one of the links below to provide feedback about this product.

This product is provided subject to this Notification and this Privacy & Use policy.

Please share your thoughts.

We recently updated our anonymous product survey; we'd welcome your feedback.