Tenable Research has discovered a critical vulnerability in Siemens TIA Portal (also referenced as STEP 7) that would allow an attacker to perform administrative actions. Siemens has released an update and security advisory.

Tenable Research Discloses Critical Vulnerability in Siemens STEP 7 (CVE-2019-10915)

A vulnerability has been identified in TIA Administrator (All versions < V1.0 SP1 Upd1). The integrated configuration web application (TIA Administrator) allows to execute certain application commands without proper authentication. The vulnerability could be exploited by an attacker with local access to the affected system. Successful exploitation requires no privileges and no user interaction. An attacker could use the vulnerability to compromise confidentiality and integrity and availability of the affected system. At the time of advisory publication no public exploitation of this security vulnerability was known.

The TIA Administrator in Siemens TIA Portal 15 before Update 5 allows a remote, unauthenticated attacker administrative access to all application commands. An attacker can execute application functionality by sending crafted packets over WebSockets protocol.

Detections

Analytics

CVE-2019-10915

high

Tenable Plugins

high