Bulletins

Several models of SINAMICS PERFECT HARMONY GH180 Drives are affected by a DHCP client vulnerability (CVE-2021-29998) in the integrated SCALANCE X206-1 device. The vulnerability could allow an attacker to cause a heap-based buffer overflow on that device and use it to get access to the drive’s internal network. The list …

Siemens has released updates for Opcenter Quality to fix an authentication bypass vulnerability. This could allow unauthenticated access to the application or cause denial of service condition for existing users. The issue is based on rich client modules using IbsGailWrapper-interface. After issuing the record the authentication bypass vulnerability could take …

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 …

A vulnerability in Xpedition Designer could allow an attacker with an unprivileged account to override or modify the service executable and subsequently gain elevated privileges. Siemens has released an update for the Xpedition Designer and recommends to update to the latest version.

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

There are multiple vulnerabilities in an underlying Link Layer Discovery Protocol (LLDP) third party library. Siemens has released updates for several affected products and recommends to update to the latest versions. Siemens is preparing further updates and recommends specific countermeasures for products where updates are not, or not yet available.

SINEMA Remote Connect Server is missing HTTP security headers on the web server. This could aid attackers by making the servers more prone to clickjacking, channel downgrade attacks and other similar client-based attack vectors. Siemens has released an update for the SINEMA Remote Connect Server and recommends to update to …