PT-2014-18: Weak encryption of account data in Wonderware Information Server

Vulnerable software

Wonderware Information Server
Version: 4.0 SP1 Portal, 4.5 Portal, 5.0 Portal, and 5.5 Portal

Link:
http://www.invensys.com/

Severity level

Severity level: Low
Impact: Privilege Gaining, Disclosure Information
Access Vector: Local

CVSS v2:
Base Score: 2.1
Vector: (AV:L/AC:L/Au:N/C:P/I:N/A:N)

CVE: CVE-2014-2381

Software description

Wonderware Information Server aggregates and presents plant performance metrics and production data to operations, maintenance and engineering personnel, via an easy to implement web solution. Wonderware Information Server as well as Wonderware Intouch HMI are the part of a unified solution for building ArchestrA System Platform SCADA- and HMI-systems. This solution is used by personnel of nuclear power plants, chemical plants and other critically important objects.

Vulnerability description

The specialists of the Positive Research center have detected a Weak encryption of account data vulnerability in Wonderware Information Server.

Encryption of WIS is insufficient. This vulnerability could allow elevation of privileges if an attacker decrypts the credentials. The system would need to be compromised for this attack to occur.

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Advisory status

01.04.2014 - Vendor gets vulnerability details
26.08.2014 - Vendor releases fixed version and details
05.09.2014 - Public disclosure

Credits

The vulnerability was detected by Sergey Gordeychik and Alexey Osipov, Positive Research Center (Positive Technologies Company)

References

<http://en.securitylab.ru/lab/PT-2014-18&gt;
<https://ics-cert.us-cert.gov/advisories/ICSA-14-238-02&gt;

Reports on the vulnerabilities previously discovered by Positive Research:

<http://www.ptsecurity.com/research/advisory/&gt;
<http://en.securitylab.ru/lab/&gt;