PT-2013-40: Resource Exhaustion in Wonderware Information Server
Wonderware Information Server
Version 4.0 SP1, 4.5- Portal and 5.0- Portal
Severity level: High
Impact: Arbitrary Code Execution, Denial of Service
Access Vector: Remote
Base Score: 9.3
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.
Positive Research Center experts have discovered "Resource Exhaustion" vulnerability in Wonderware Information Server.
WIS does not properly restrict the size or amount of resources that are requested, allowing the attacker to consume more resources than intended. This vulnerability, if exploited, could allow remote code execution and DoS.
How to fix
Update your software up to the latest version.
16.12.2012 - Vendor gets vulnerability details
23.04.2013 - Vendor releases fixed version and details
10.06.2013 - Public disclosure
This vulnerability have discovered by Ivan Poliyanchuk, Evgeny Ermakov, Nikita Mikhalevsky, Dmitry Serebryannikov, Vyacheslav Egoshin, Gleb Gritsai, Denis Baranov, Positive Research Center (Positive Technologies Company)
Reports on the vulnerabilities previously discovered by Positive Research: