// For flags

CVE-2018-16556

 

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability has been identified in SIMATIC S7-400 CPU 412-1 DP V7 (All versions), SIMATIC S7-400 CPU 412-2 DP V7 (All versions), SIMATIC S7-400 CPU 414-2 DP V7 (All versions), SIMATIC S7-400 CPU 414-3 DP V7 (All versions), SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 416-2 DP V7 (All versions), SIMATIC S7-400 CPU 416-3 DP V7 (All versions), SIMATIC S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 416F-2 DP V7 (All versions), SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 417-4 DP V7 (All versions), SIMATIC S7-400 CPU 412-2 PN V7 (All versions < V7.0.3), SIMATIC S7-400 H V4.5 and below CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) (All versions < V6.0.9), SIMATIC S7-400 PN/DP V6 and below CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-410 CPU family (incl. SIPLUS variants) (All versions < V8.2.1), SIPLUS S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIPLUS S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3), SIPLUS S7-400 CPU 416-3 V7 (All versions), SIPLUS S7-400 CPU 417-4 V7 (All versions). Specially crafted packets sent to port 102/tcp via Ethernet interface, via
PROFIBUS, or via Multi Point Interfaces (MPI) could cause the affected
devices to go into defect mode. Manual reboot is required to resume normal
operation.

Successful exploitation requires an attacker to be able to send specially
crafted packets to port 102/tcp via Ethernet interface, via PROFIBUS or Multi
Point Interfaces (MPI). No user interaction and no user 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.

Se ha identificado una vulnerabilidad en la familia de CPUs SIMATIC S7-400 DP V7 (incl. variantes SIPLUS) (Todas las versiones), la familia de CPUs SIMATIC S7-400 H V4.5 e inferiores (incl. variantes SIPLUS) (Todas las versiones), la familia de CPUs SIMATIC S7-400 H V6 (incl. variantes SIPLUS) (Todas las versiones). SIPLUS) (Todas las versiones anteriores a V6.0.9), familia de CPU SIMATIC S7-400 PN/DP V6 e inferiores (incl. variantes SIPLUS) (Todas las versiones), familia de CPU SIMATIC S7-410 (incl. variantes SIPLUS) (Todas las versiones anteriores a V8.2.1). Los paquetes especialmente diseñados enviados al puerto 102/tcp a través de la interfaz Ethernet, a través de PROFIBUS o a través de las interfaces multipunto (MPI) podrían hacer que los dispositivos afectados entraran en modo defectuoso. Se requiere un reinicio manual para reanudar el funcionamiento normal. La explotación exitosa requiere que un atacante sea capaz de enviar paquetes especialmente diseñados al puerto 102/tcp a través de la interfaz Ethernet, a través de PROFIBUS o de interfaces multipunto (MPI). No se requiere ninguna interacción ni privilegios de usuario para explotar la vulnerabilidad de seguridad. La vulnerabilidad podría permitir causar una condición de denegación de servicio de la funcionalidad del núcleo de la CPU, comprometiendo la disponibilidad del sistema

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2018-09-06 CVE Reserved
  • 2018-12-13 CVE Published
  • 2024-08-05 CVE Updated
  • 2024-10-22 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
CAPEC
References (1)
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 S7-400 Firmware
Search vendor "Siemens" for product "Simatic S7-400 Firmware"
<= v6.0
Search vendor "Siemens" for product "Simatic S7-400 Firmware" and version " <= v6.0"
-
Affected
in Siemens
Search vendor "Siemens"
Simatic S7-400
Search vendor "Siemens" for product "Simatic S7-400"
--
Safe
Siemens
Search vendor "Siemens"
Simatic S7-400 Pn\/dp V7 Firmware
Search vendor "Siemens" for product "Simatic S7-400 Pn\/dp V7 Firmware"
*-
Affected
in Siemens
Search vendor "Siemens"
Simatic S7-400 Pn\/dp V7
Search vendor "Siemens" for product "Simatic S7-400 Pn\/dp V7"
--
Safe
Siemens
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Simatic S7-400h Firmware
Search vendor "Siemens" for product "Simatic S7-400h Firmware"
<= v4.5
Search vendor "Siemens" for product "Simatic S7-400h Firmware" and version " <= v4.5"
-
Affected
in Siemens
Search vendor "Siemens"
Simatic S7-400h
Search vendor "Siemens" for product "Simatic S7-400h"
--
Safe
Siemens
Search vendor "Siemens"
Simatic S7-410 Firmware
Search vendor "Siemens" for product "Simatic S7-410 Firmware"
< 8.2.1
Search vendor "Siemens" for product "Simatic S7-410 Firmware" and version " < 8.2.1"
-
Affected
in Siemens
Search vendor "Siemens"
Simatic S7-410
Search vendor "Siemens" for product "Simatic S7-410"
--
Safe
Siemens
Search vendor "Siemens"
Simatic S7-400h V6 Firmware
Search vendor "Siemens" for product "Simatic S7-400h V6 Firmware"
*-
Affected
in Siemens
Search vendor "Siemens"
Simatic S7-400h V6
Search vendor "Siemens" for product "Simatic S7-400h V6"
--
Safe