Bulletins

On 2021-12-09, a vulnerability in Apache Log4j (a logging tool used in many Java-based applications) was disclosed, that could allow remote unauthenticated attackers to execute code on vulnerable systems. The vulnerability is tracked as CVE-2021-44228 and is also known as “Log4Shell”. Siemens is currently investigating to determine which products are …

The networking component (Nucleus NET) in Nucleus Real-Time Operating System (RTOS) use Initial Sequence Numbers for TCP-Sessions that are predictable. Siemens has released updates for several affected products and recommends to update to the latest versions. Siemens recommends specific countermeasures for products where updates are not available.

The TCP/IP stack and related services (FTP, TFTP) of the networking component (Nucleus NET) in Nucleus Real-Time Operating System (RTOS) contain several vulnerabilities, also known as “NUCLEUS:13” and as documented below. Siemens has released updates for several affected products and recommends to update to the latest versions. Siemens recommends countermeasures …

Security researchers discovered and disclosed 9 vulnerabilities in several DNS implementations, also known as “NAME:WRECK” vulnerabilities. The vulnerabilities described in this advisory are from this set. The DNS client of affected products contains multiple vulnerabilities related to the handling of DNS responses and requests. The most severe could allow an …

Multiple vulnerabilities (also known as “NUCLEUS:13”) have be identified in the Nucleus RTOS (real-time operating system) and reported in the Siemens Security Advisory SSA-044112: https://cert-portal.siemens.com/productcert/pdf/ssa-044112.pdf. The products listed below use affected versions of the Nucleus software and inherently contain these vulnerabilities. Siemens recommends specific countermeasures for products where updates are …

SIMATIC RTLS Locating Manager before V2.12 contains multiple vulnerabilities that could allow an attacker to read sensitive data or trigger a denial-of-service condition of the application service. Siemens has released an update for the SIMATIC RTLS Locating Manager and recommends to update to the latest version.

OpenSSL has published a security advisory [0] about a vulnerability in OpenSSL versions 1.1.1 < 1.1.1k, that allows an unauthenticated attacker to cause a Denial-of-Service (DoS) if a maliciously crafted renegotiation message is sent. Siemens has released updates for several affected products and recommends to update to the latest versions. …