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SIMATIC STEP 7 PRO UPDATE

SIMATIC STEP 7 supports the loading of DLL files in STEP 7 project folders, which can be used within an attack against systems where STEP 7 is installed.

Vulnerability Characterization Vulnerability Overview Siemens SIMATIC S7 PLCs are used in a variety of industrial applications worldwide, including energy, water and wastewater, oil and gas, chemical, building automation, and manufacturing. Siemens SIMATIC STEP 7 and PCS 7 software is used to configure and manage Siemens SIMATIC S7 PLCs. ICS-CERT recommends that organizations evaluate the impact of this vulnerability based on their operational environment, architecture, and product implementation. Impact to individual organizations depends on many factors that are unique to each organization.

SIMATIC PCS 7 versions before and including V7.1 SP3.Īn attacker can execute arbitrary code by exploiting this vulnerability.

SIMATIC STEP 7 versions prior to V5.5 Service Pack 1 (V5.5.1 equivalent), and.

The following Siemens products and versions are affected. This vulnerability was fixed in 2011 by Siemens through a security update. Note: This advisory, together with advisory “ ICSA-12-205-01-Siemens WinCC Insecure SQL Authentication,” addresses vulnerabilities first discovered in 2010 in conjunction with the discovery of Stuxnet. Siemens has produced a patch that resolves this vulnerability. This vulnerability can be remotely exploited, as was the case with Stuxnet malware which was known to target this vulnerability. Previous versions of SIMATIC STEP 7 and PCS 7 allowed the loading of malicious DLL files into the STEP 7 project folder that can be used to attack the system on which STEP 7 is installed.

SIMATIC STEP 7 PRO UPDATE

Siemens has released a software update for a DLL hijacking vulnerability in SIMATIC STEP 7 and SIMATIC PCS 7 software.