February 2020
Title
SSA-279823 (Last Update: 2020-02-10): Cross-Site Scripting vulnerability in the SIMATIC S7-1200 CPU family
Published
Feb. 10, 2020, 1 a.m.
Summary
Siemens SIMATIC S7-1200 CPUs, version 2 and higher, are capable of running an embedded web server. Web server functionality is disabled by default in the 1200 project configuration. However, if enabled, the web server is susceptible to Cross-Site Scripting (XSS). Siemens provides a firmware update which fixes this XSS vulnerability.
Title
SSA-087240 (Last Update: 2020-02-10): Vulnerabilities in SIEMENS LOGO!
Published
Feb. 10, 2020, 1 a.m.
Summary
Two vulnerabilities have been identified in SIEMENS LOGO!8 BM devices. The most severe vulnerability could allow an attacker to hijack existing web sessions. Siemens provides LOGO!8 BM FS-05 with firmware version V1.81.2, which fixes the first vulnerability, and recommends specific mitigations for the second vulnerability.
Title
SSA-176087 (Last Update: 2020-02-10): Unauthenticated Access to Critical Services in SCALANCE X-200 Switch Family
Published
Feb. 10, 2020, 1 a.m.
Summary
A potential vulnerability was discovered in the web server authentication of SCALANCE X-200 and X-200IRT switches that might allow attackers to perform administrative operations over the network without authentication. This issue only applies to switches using older firmware versions and has been fixed from firmware V4.5.0 (non-IRT) and V5.1.0 (IRT) ...
Title
SSA-944083 (Last Update: 2020-02-10): HTTP Header Injection in SIMATIC Panels and SIMATIC WinCC (TIA Portal)
Published
Feb. 10, 2020, 1 a.m.
Summary
The latest update for SIMATIC Panel software and SIMATIC WinCC (TIA Portal) fixes a vulnerability that could allow an attacker with network access to the web server to perform a HTTP header injection attack.
Title
SSA-321046 (Last Update: 2020-02-10): Denial-of-Service Vulnerability in SCALANCE X-300/X408 Switch Family
Published
Feb. 10, 2020, 1 a.m.
Summary
The latest firmware update for the Siemens SCALANCE X-300 switch family and SCALANCE X 408 fixes two vulnerabilities. The vulnerabilities could allow attackers to cause a device reboot under certain conditions. An attacker must have network access to the device to exploit this vulnerability.
Title
SSA-293562 (Last Update: 2020-02-10): Vulnerabilities in Industrial Products
Published
Feb. 10, 2020, 1 a.m.
Summary
Several industrial devices are affected by two vulnerabilities that could allow an attacker to cause a Denial-of-Service condition via PROFINET DCP network packets under certain circumstances. The precondition for this scenario is a direct layer 2 access to the affected products. PROFIBUS interfaces are not affected. Siemens has released updates ...
Title
SSA-625789 (Last Update: 2020-02-10): Security Vulnerabilities in Siemens SIMATIC S7-1200 CPU
Published
Feb. 10, 2020, 1 a.m.
Summary
Security experts have examined the SIMATIC S7-1200 Programmable Logic Controller (PLC). This research has revealed some weaknesses in the SIMATIC S71200 CPU communication and authentication functions. Once the automation network is compromised it is possible to demonstrate the following weaknesses using a remote exploit: - Trigger CPU functions by record ...
Title
SSA-914382 (Last Update: 2020-02-10): Denial-of-Service Vulnerability in SIMATIC S7-400 CPU Family
Published
Feb. 10, 2020, 1 a.m.
Summary
SIMATIC S7-400 CPUs are affected by a security vulnerability which could lead to a Denial-of-Service condition of the PLC if specially crafted packets are received and processed. The affected SIMATIC S7-400 CPU hardware versions are in the product cancellation phase or already phased-out. Siemens recommends customers either upgrading to a ...
Title
SSA-268644 (Last Update: 2020-02-10): Spectre-NG (Variants 3a and 4) Vulnerabilities in Industrial Products
Published
Feb. 10, 2020, 1 a.m.
Summary
Security researchers published information on vulnerabilities known as Spectre-NG (Variants 3a and 4). These vulnerabilities affect many modern processors from different vendors to a varying degree. Several Industrial Products include affected processors and are affected by the vulnerabilities.
Title
SSA-724606 (Last Update: 2020-02-10): Denial-of-Service Vulnerabilities in SIMATIC S7-1200 CPU Family
Published
Feb. 10, 2020, 1 a.m.
Summary
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 ...
Title
SSA-804486 (Last Update: 2020-02-10): Multiple Vulnerabilities in SIMATIC Panels and SIMATIC WinCC (TIA Portal)
Published
Feb. 10, 2020, 1 a.m.
Summary
The latest update for SIMATIC Panel Software and SIMATIC WinCC (TIA Portal) fixes two vulnerabilities. The most severe is a vulnerability which could allow an attacker with network access to the integrated device to read and write variables via SNMP. Siemens recommends to update to the newest version.
Title
SSA-180635 (Last Update: 2020-02-10): Denial-of-Service Vulnerabilities in SIMATIC S7-1500 CPU Family
Published
Feb. 10, 2020, 1 a.m.
Summary
Older versions of the S7-1500 CPU are affected by two Denial-of-Service vulnerabilities. Siemens has released updates for the currently supported hardware versions.
Title
SSA-987029 (Last Update: 2020-02-10): Denial-of-Service Vulnerability in SIMATIC S7-300 CPU Family
Published
Feb. 10, 2020, 1 a.m.
Summary
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.
Title
SSA-306710 (Last Update: 2020-02-10): Denial-of-Service Vulnerability in SIMATIC S7-300 CPU Family
Published
Feb. 10, 2020, 1 a.m.
Summary
Siemens has released a firmware update for the S7-300 CPU family which fixes a vulnerability that could allow remote attackers to perform a Denial-of-Service attack.
Title
SSA-487246 (Last Update: 2020-02-10): Vulnerabilities in SIMATIC HMI Devices
Published
Feb. 10, 2020, 1 a.m.
Summary
The latest updates for the affected products fix three vulnerabilities. The most severe of these vulnerabilities could allow an attacker to perform a Denial-of-Service attack against HMI panels under certain conditions.
Title
SSA-179516 (Last Update: 2020-02-10): OpenSSL Vulnerability in Industrial Products
Published
Feb. 10, 2020, 1 a.m.
Summary
A vulnerability in OpenSSL affects several Siemens industrial products. Siemens has released updates for some affected products and is working on updates for others.
Title
SSA-818183 (Last Update: 2020-02-10): Denial-of-Service Vulnerability in SIMATIC S7-300 CPU Family
Published
Feb. 10, 2020, 1 a.m.
Summary
Siemens has released a firmware update for the SIMATIC S7-300 CPU family which fixes a vulnerability that could allow remote attackers to perform a Denial-of-Service attack under certain conditions.
Title
SSA-233109 (Last Update: 2020-02-10): Web Vulnerabilities in SIMATIC Panels
Published
Feb. 10, 2020, 1 a.m.
Summary
The latest update for SIMATIC Panel software and SIMATIC WinCC (TIA Portal) fixes two web vulnerabilities. The most severe is a vulnerability which could allow an attacker with network access to the integrated webserver to download arbitrary files. Siemens recommends to update to the newest version.
Title
SSA-672373 (Last Update: 2020-02-10): Vulnerabilities in CP 1543-1
Published
Feb. 10, 2020, 1 a.m.
Summary
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.
Title
SSA-470231 (Last Update: 2020-02-10): TPM Vulnerability in SIMATIC IPCs
Published
Feb. 10, 2020, 1 a.m.
Summary
Several SIMATIC IPCs include a version of Infineon's Trusted Platform Module (TPM) firmware that mishandles RSA key generation. This makes it easier for attackers to conduct cryptographic attacks against the key material. Siemens has released updates for the affected Industrial PCs.
Title
SSA-623229 (Last Update: 2020-02-10): DROWN Vulnerability in Industrial Products
Published
Feb. 10, 2020, 1 a.m.
Summary
The disclosed attack called DROWN (Decrypting RSA with Obsolete and Weakened eNcryption), also known as CVE-2016-0800, could potentially allow the decryption of SSL/TLS sessions of some Siemens industrial products under certain conditions. Siemens has released firmware updates and solutions to resolve the vulnerability
Title
SSA-954136 (Last Update: 2020-02-10): User Impersonation Vulnerability in SCALANCE X-200IRT Switch Family
Published
Feb. 10, 2020, 1 a.m.
Summary
The latest firmware update for the SCALANCE X-200IRT switch family fixes a vulnerability which could allow attackers to impersonate legitimate users of the web interface.
Title
SSA-346262 (Last Update: 2020-02-10): Denial-of-Service in Industrial Products
Published
Feb. 10, 2020, 1 a.m.
Summary
Several industrial products are affected by a vulnerability that could allow remote attackers to conduct a Denial-of-Service (DoS) attack by sending specially crafted packets to port 161/udp (SNMP). Siemens has released updates for several affected products, and recommends that customers update to the new version. Siemens is preparing further updates ...
Title
SSA-110922 (Last Update: 2020-02-10): Web Vulnerability in TIM 1531 IRC
Published
Feb. 10, 2020, 1 a.m.
Summary
The latest update for TIM 1531 IRC fixes a security vulnerability that could allow unauthorized remote attackers to perform administrative operations on the device. Siemens recommends updating as soon as possible.
Title
SSA-731239 (Last Update: 2020-02-10): Vulnerabilities in SIMATIC S7-300 and S7-400 CPUs
Published
Feb. 10, 2020, 1 a.m.
Summary
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.

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