Bulletins

Security researchers published information on vulnerabilities known as ZombieLoad and Microarchitectural Data Sampling (MDS). These vulnerabilities affect many modern processors from different vendors to a varying degree. Several Siemens Industrial Products contain processors that are affected by the vulnerabilities.

Two vulnerabilities have been identified in SIMATIC S7-300 and S7-400 CPU families. One vulnerability could lead to a Denial-of-Service, the other vulnerability could result in credential disclosure. Siemens recommends specific mitigations. Siemens will update this advisory when new information becomes available.

The latest update for SIMATIC CP 1543-1 contains two fixes for vulnerabilities within its embedded ProFTPD FTP server. The more severe of these vulnerabilities could allow for remote code execution and information disclosure without authentication. Siemens has released updates for SIMATIC CP 1543-1 modules.

OZW672 and OZW772 Web Server versions < 10.00 contain a vulnerability that could allow unauthenticated users to access project files under certain conditions. Siemens has released Version 10.00 that fixes the vulnerability and recommends to update all web servers.

SIPORT MP version 3.1.4 fixes a vulnerability that allowed to create special accounts ("service users") which could enable an authenticated attacker to perform actions that are invisible to other users of the system. Siemens recommends customers to apply the update. For older versions, a hotfix and a tool are available …

Several industrial products are affected by a vulnerability that could allow remote attackers to conduct a Denial-of-Service (DoS) attack by sending specially crafted packets to port 161/udp (SNMP). Siemens has released updates for several affected products, and recommends that customers update to the new version. Siemens is preparing further updates …