Ssa 550198

Multiple SIMATIC WinCC versions are affected by a database privilege escalation vulnerability that could allow an authenticated user with access to the database to execute commands on the underlying host system.

Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens is preparing further fixes and recommends mitigations for products where fixes are not or not yet available.

Product-specific remediations or mitigations can be found in the section Known Affected Products . Please follow the General Security Recommendations .

As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: ), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at:

As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: ), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at:

SIMATIC WinCC is a supervisory control and data acquisition (SCADA) system.

This chapter describes all vulnerabilities (CVE-IDs) addressed in this security advisory. Wherever applicable, it also documents the product-specific impact of the individual vulnerabilities.

The affected application does not sufficiently restrict the permissions assigned to a database role. This could allow an authenticated remote attacker with database access to escalate privileges and execute arbitrary commands on the host system where SIMATIC WinCC is installed, potentially leading to a compromise of the system.

Siemens thanks the following party for its efforts:

Sascha Meyer, Simon Wessling, and Jonathan Lauener from GAI NetConsult GmbH for coordinated disclosure