CVE-2018-16561
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
A vulnerability has been identified in SIMATIC S7-300 CPUs (All versions < V3.X.16). The affected CPUs improperly validate S7 communication packets which could cause a Denial-of-Service condition of the CPU. The CPU will remain in DEFECT mode until manual restart. Successful exploitation requires an attacker to be able to send a specially crafted S7 communication packet to a communication interface of the CPU. This includes Ethernet, PROFIBUS, and Multi Point Interfaces (MPI). No user interaction or privileges are required to exploit the security vulnerability. The vulnerability could allow causing a Denial-of-Service condition of the core functionality of the CPU, compromising the availability of the system. At the time of advisory publication no public exploitation of this security vulnerability was known. Siemens confirms the security vulnerability and provides mitigations to resolve the security issue.
Se ha identificado una vulnerabilidad en las CPUs SIMATIC S7-300 (todas las versiones anteriores a la V3.X.16). Las CPU afectadas comprueban incorrectamente los paquetes de comunicación S7 que podrían causar una condición de denegación de servicio (DoS) de la CPU. La CPU permanecerá en modo DEFECT hasta el reinicio manual. La explotación con éxito requiere que un atacante pueda enviar un paquete de comunicación S7 especialmente creado a una interfaz de comunicación de la CPU. Esto incluye Ethernet, PROFIBUS y Multi Point Interfaces (MPI). No se requieren interacción ni privilegios del usuario para explotar la vulnerabilidad de seguridad. La vulnerabilidad podría causar una condición de denegación de servicio (DoS) de la funcionalidad principal de la CPU, comprometiendo la disponibilidad del sistema. En el momento de la publicación de asesoramiento, no se conocía la explotación pública de esta vulnerabilidad de seguridad. Siemens confirma la vulnerabilidad de seguridad y proporciona mitigaciones para resolver el problema de seguridad.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2018-09-06 CVE Reserved
- 2019-04-17 CVE Published
- 2023-03-07 EPSS Updated
- 2024-08-05 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-306710.pdf | 2019-10-03 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Siemens Search vendor "Siemens" | Simatic S7-300 Firmware Search vendor "Siemens" for product "Simatic S7-300 Firmware" | - | - |
Affected
| in | Siemens Search vendor "Siemens" | Simatic S7-300 Search vendor "Siemens" for product "Simatic S7-300" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Simatic S7-300f Firmware Search vendor "Siemens" for product "Simatic S7-300f Firmware" | - | - |
Affected
| in | Siemens Search vendor "Siemens" | Simatic S7-300f Search vendor "Siemens" for product "Simatic S7-300f" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Simatic S7-300fs Firmware Search vendor "Siemens" for product "Simatic S7-300fs Firmware" | - | - |
Affected
| in | Siemens Search vendor "Siemens" | Simatic S7-300fs Search vendor "Siemens" for product "Simatic S7-300fs" | - | - |
Safe
|
| Siemens Search vendor "Siemens" | Simatic S7-300t Firmware Search vendor "Siemens" for product "Simatic S7-300t Firmware" | - | - |
Affected
| in | Siemens Search vendor "Siemens" | Simatic S7-300t Search vendor "Siemens" for product "Simatic S7-300t" | - | - |
Safe
|