Bulletins

SIMATIC S7-1500 CPU family devices are affected by a vulnerability that could allow an attacker to perform a Denial-of-Service attack if specially crafted UDP packets are sent to the device. Siemens has released updates for several affected products, is working on updates for the remaining affected products and recommends specific …

Products that include the Siemens PROFINET-IO (PNIO) stack in versions prior V06.00 are potentially affected by a denial-of-service vulnerability when multiple legitimate diagnostic package requests are sent to the DCE-RPC interface. Siemens has released updates for several affected products, and recommends that customers update to the new version. Siemens is …

Several SCALANCE X switches contain a vulnerability that could allow an attacker to perform administrative actions if the victim is tricked into clicking on a website controlled by the attacker. The attack only works if the victim has an authenticated session on the administrative interface of the switch. Siemens has …

The SIPROTEC 4 and SIPROTEC Compact devices are affected by a security vulnerability which could allow an attacker to conduct a Denial-of-Service attack over the network when equipped with EN100 Ethernet communication modules. Siemens recommends specific countermeasures to mitigate the issue.

The latest product release of the SIMATIC S7-1200 CPU fixes several vulnerabilities. The most severe of these vulnerabilities could allow an attacker to take over an authenticated web session if the session token can be predicted. The attacker must have network access to the device to exploit this vulnerability. Further …

The latest updates for the affected products fix the “GHOST” [1] vulnerability identified in glibc library (CVE-2015-0235). Incorrect parsing within the glibc library functions “gethostbyname()” and “gethostbyname2()” could cause a Denial-of-Service of the targeted system. [1] https://nvd.nist.gov/vuln/detail/CVE-2015-0235

A vulnerability could allow attackers to perform a Denial-of-Service attack over the network without prior authentication against S7-300 CPUs under certain conditions. Siemens recommends specific mitigations. Siemens will update this advisory when new information becomes available.