medium
6.5
CWE
20
Advisory Published
Updated

CVE-2018-4843: Input Validation

First published: Tue Mar 20 2018(Updated: )

A vulnerability has been identified in 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 416-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions < V7.0.3), SIMATIC CP 343-1 (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 Advanced (incl. SIPLUS variants) (All versions), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 Advanced (All versions < V3.3), SIMATIC ET 200pro IM154-8 PN/DP CPU (All versions < V3.2.16), SIMATIC ET 200pro IM154-8F PN/DP CPU (All versions < V3.2.16), SIMATIC ET 200pro IM154-8FX PN/DP CPU (All versions < V3.2.16), SIMATIC ET 200S IM151-8 PN/DP CPU (All versions < V3.2.16), SIMATIC ET 200S IM151-8F PN/DP CPU (All versions < V3.2.16), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V1.7.0), SIMATIC S7-1500 Software Controller (All versions < V1.7.0), SIMATIC S7-300 CPU 314C-2 PN/DP (All versions < V3.3.16), SIMATIC S7-300 CPU 315-2 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 315F-2 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 315T-3 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 317-2 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 317F-2 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 317T-3 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 317TF-3 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 319-3 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 319F-3 PN/DP (All versions < V3.2.16), SIMATIC S7-400 CPU 412-2 PN V7 (All versions < V7.0.3), SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) (All versions < V6.0.9), SIMATIC S7-400 PN/DP V6 CPU family (incl. SIPLUS variants) (All versions < V6.0.7), SIMATIC S7-410 CPU family (incl. SIPLUS variants) (All versions < V8.1), SIMATIC WinAC RTX 2010 (All versions < V2010 SP3), SIMATIC WinAC RTX F 2010 (All versions < V2010 SP3), SINUMERIK 828D (All versions < V4.7 SP6 HF1), SIPLUS ET 200S IM151-8 PN/DP CPU (All versions < V3.2.16), SIPLUS ET 200S IM151-8F PN/DP CPU (All versions < V3.2.16), SIPLUS NET CP 443-1 (All versions < V3.3), SIPLUS NET CP 443-1 Advanced (All versions < V3.3), SIPLUS S7-300 CPU 314C-2 PN/DP (All versions < V3.3.16), SIPLUS S7-300 CPU 315-2 PN/DP (All versions < V3.2.16), SIPLUS S7-300 CPU 315F-2 PN/DP (All versions < V3.2.16), SIPLUS S7-300 CPU 317-2 PN/DP (All versions < V3.2.16), SIPLUS S7-300 CPU 317F-2 PN/DP (All versions < V3.2.16), 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), Softnet PROFINET IO for PC-based Windows systems (All versions). Responding to a PROFINET DCP request with a specially crafted PROFINET DCP packet could cause a denial of service condition of the requesting system. The security vulnerability could be exploited by an attacker located on the same Ethernet segment (OSI Layer 2) as the targeted device. A manual restart is required to recover the system.

Credit: productcert@siemens.com

Affected SoftwareAffected VersionHow to fix
Siemens Simatic Cp 343-1 Firmware
Siemens Simatic Cp 343-1
Siemens Simatic Cp 343-1 Firmware
Siemens Simatic Cp 343-1
Siemens Simatic Cp 443-1 Firmware
Siemens Simatic Cp 443-1
Siemens Simatic Cp 443-1 Firmware
Siemens Simatic Cp 443-1
Siemens Simatic S7-1500 Firmware<1.7.0
Siemens Simatic S7-1500
Siemens Simatic S7-300 Firmware
Siemens Simatic S7-300
Siemens Simatic S7-400 H V6 Firmware
Siemens Simatic S7-400 H V6
Siemens Simatic S7-400 Pn\/dp V6 Firmware<6.0.7
Siemens Simatic S7-400 Pn\/dp V6
Siemens Simatic S7-400 Pn\/dp V7 Firmware
Siemens Simatic S7-400 Pn\/dp V7
Siemens Simatic S7-410 Firmware<8.1
Siemens Simatic S7-410
Siemens Simatic Winac Rtx 2010 Firmware
Siemens Simatic Winac Rtx 2010
Siemens Sinumerik 828d Firmware
Siemens Sinumerik 828d
Siemens Softnet Pn-io Linux Firmware Windows
Siemens Softnet Pn-io Linux

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID of this vulnerability?

    The vulnerability ID is CVE-2018-4843.

  • What is the severity of CVE-2018-4843?

    The severity of CVE-2018-4843 is medium (6.5).

  • Which versions of SIMATIC S7-400 CPU are affected by CVE-2018-4843?

    All versions of SIMATIC S7-400 CPU 414-3 PN/DP V7, SIMATIC S7-400 CPU 414F-3 PN/DP V7, SIMATIC S7-400 CPU 416-3 PN/DP V7, and SIMATIC S7-400 CPU 416F-3 PN/DP V7 prior to V7.0.3 are affected.

  • Which software is affected by CVE-2018-4843?

    The affected software includes Siemens Simatic CP 343-1 Firmware and Siemens Simatic S7-400 Pn/dp V7 Firmware.

  • Is there a fix available for CVE-2018-4843?

    Yes, updating to version V7.0.3 for SIMATIC S7-400 CPU 414-3 PN/DP V7, SIMATIC S7-400 CPU 414F-3 PN/DP V7, SIMATIC S7-400 CPU 416-3 PN/DP V7, and SIMATIC S7-400 CPU 416F-3 PN/DP V7 can fix the vulnerability.

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