Bulletins

The latest firmware update for SIMATIC CP 1543-1 devices fixes two vulnerabilities. One of these vulnerabilities could allow authorized users to escalate their privileges on the CP.

Siemens SIMATIC S7-1200 PLCs, version 2 and higher, allow device management over TCP port 102 (ISO-TSAP) and retrieving status information over UDP port 161 (SNMP). It is possible to cause the device to go into defect mode by sending specially crafted packets to these ports. Siemens addresses these issues with …

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.

Siemens has released updates for Communication Processor (CP) module families CP 343-1/TIM 3V-IE/TIM 4R-IE/CP 443-1 to resolve an authentication bypass vulnerability that could allow unauthenticated users to perform administrative operations under certain conditions.

The latest update for SINEMA Server fixes a vulnerability that could allow authenticated users with a low-privileged account to perform firmware updates (as well as other administrative operations) on connected devices. Therefore, Siemens recommends to update the affected products.

The latest update for TIA Portal fixes a vulnerability that could allow a local attacker to execute arbitrary code with SYSTEM privileges. Siemens has released an update for TIA Portal V15, is working on updates for other versions of TIA Portal and recommends specific mitigations for vulnerable versions.

Several SCALANCE X switches are affected by an Authentication Bypass vulnerability. The vulnerability allows an unauthenticated attacker to violate access-control rules. The vulnerability can be exploited by sending a GET request to a specific uniform resource locator on the web configuration interface of the device. The security vulnerability could be …