PT-2015-09: Information Disclosure in Siemens SIMATIC STEP 7 (TIA Portal)
Siemens SIMATIC STEP 7 (TIA Portal)
Version: 13 and earlier
Severity level: Low
Impact: Information Disclosure
Access Vector: Local
Base Score: 2.1
Siemens SIMATIC STEP 7 (TIA Portal) is an engineering software to configure and program SIMATIC controllers and Standard PCs running WinAC RTX.
The specialists of the Positive Research center have detected an Information Disclosure vulnerability in Siemens SIMATIC STEP 7 (TIA Portal).
Device user passwords in TIA portal project files are stored using a weak hashing algorithm. Attackers with read access to the project file could possibly reconstruct the passwords for device users.
How to fix
Update your sofware up to the latest version
21.09.2012 - Vendor gets vulnerability details
13.02.2015 - Vendor releases fixed version and details
25.02.2015 - Public disclosure
The vulnerability was detected by Alexander Timorin, Positive Research Center (Positive Technologies Company)
Reports on the vulnerabilities previously discovered by Positive Research: