Bulletins

SIMATIC WinCC OA implements client-side only authentication, when neither server-side authentication (SSA) nor Kerberos authentication is enabled. In this configuration, attackers could impersonate other users or exploit the client-server protocol without being authenticated. Siemens recommends to enable server-side authentication (SSA) or Kerberos authentication for all WinCC OA projects, as documented …

SIMATIC CP 1543-1 and CP 1545-1 devices are affected by multiple vulnerabilities in ProFTPD, a third party component, that could allow a remote attacker to access sensitive information and execute arbitrary code. Siemens has released updates for the affected products and recommends to update to the latest versions.

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”. On 2021-12-14 an additional denial of service vulnerability (CVE-2021-45046) …

Multiple vulnerabilities were identified in the webserver of the SICAM GridEdge application which includes missing authentication for critical API functions, absent cross-origin resource sharing restrictions and access to credentials. Siemens has released updates for the affected products and recommends to update to the latest versions.

The latest updates for TIA Portal fix a vulnerability that could allow a local attacker to execute arbitrary code with SYSTEM privileges. Update: The previously provided fixes only correctly set the permissions on English Windows versions. Siemens is preparing updates and recommends specific countermeasures for products where updates are not, …

Desigo PXC3, PXC4, PXC5 and DXR2 devices contain multiple vulnerabilities in the webserver application that could allow an attacker to potentially intercept unencrypted transmission of sensitive information, cause a denial of service condition, or perform remote code execution. Siemens has released updates for the affected products and recommends to update …

A vulnerability exists in affected products that could allow remote attackers to affect the availability of the devices under certain conditions. The underlying TCP stack can be forced to make very computation expensive calls for every incoming packet which can lead to a Denial-of-Service. Siemens has released updates for several …