PT-2013-26: Information Disclosure in Siemens Simatic WinCC and PCS 7
(PT-2013-26) Positive Technologies Security Advisory
Information Disclosure in Siemens Simatic WinCC and PCS 7
Siemens Simatic WinCC
Version: 7.0 SP3 and earlier
Siemens Simatic PCS 7
Version: 8.0 and earlier
Severity level: Medium
Impact: Information Disclosure
Access Vector: Remote
Base Score: 4.0
Simatic WinCC is a part of Siemens SIMATIC HMI software that aimed to provide connection between an operator and PLCs that manage technological processes.
The specialists of the Positive Research center have detected "Information Disclosure" vulnerability in Siemens Simatic WinCC and PCS 7.
Users with legitimate, non-privileged access to WinCC MS SQL database can retrieve obfuscated user passwords for WebNavigator. For doing this, access to the system is needed either locally or from the adjacent network and the user’s account must have adequate permissions.
How to fix
Update your software up to the latest version
11.07.2012 - Vendor gets vulnerability details
15.03.2013 - Vendor releases fixed version and details
29.03.2013 - Public disclosure
The vulnerability was discovered by Sergey Gordeychik, Positive Research Center (Positive Technologies Company)
Reports on the vulnerabilities previously discovered by Positive Research:
About Positive Technologies
Positive Technologies www.ptsecurity.com is among the key players in the IT security market in Russia.
The principal activities of the company include the development of integrated tools for information security monitoring (MaxPatrol); providing IT security consulting services and technical support; development of the Securitylab leading Russian information security portal.
Among the clients of Positive Technologies, there are more than 40 state enterprises, more than 50 banks and financial organizations, 20 telecommunication companies, more than 40 plant facilities, as well as IT, service and retail companies from Russia, the CIS countries, the Baltic States, China, Ecuador, Germany, Great Britain, Holland, Iran, Israel, Japan, Mexico, the Republic of South Africa, Thailand, Turkey, and the USA.
Positive Technologies is a team of highly skilled developers, advisers and experts with years of vast hands-on experience. The company specialists possess professional titles and certificates; they are the members of various international societies and are actively involved in the IT security field development.