CVE-2018-16557

CVSS V2 High 7.8 CVSS V3 High 7.5

Description

A vulnerability has been identified in 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 S7-400 PN/DP V7 CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-410 CPU family (incl. SIPLUS variants) (All versions < V8.2.1). Sending of specially crafted packets to port 102/tcp via Ethernet interface via PROFIBUS or Multi Point Interfaces (MPI) could cause a denial of service condition on affected devices. Flashing with a firmware image may be required to recover the CPU. Successful exploitation requires an attacker to have network access to port 102/tcp via Ethernet interface or to be able to send messages via PROFIBUS or Multi Point Interfaces (MPI) to the device. No user interaction is required. If no access protection is configured, no 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.

Overview

CVE ID
CVE-2018-16557

Assigner
productcert@siemens.com

Vulnerability Status
Modified

Published Version
2018-12-13T16:29:00

Last Modified Date
2023-01-10T12:15:11

Weakness Enumerations

CWE	URL
CWE-347	http://cwe.mitre.org/data/definitions/347.html
NVD-CWE-noinfo	http://cwe.mitre.org/data/definitions/NVD-noinfo.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
		AND
cpe:2.3:o:siemens:simatic_s7-400_firmware::::::::	1	OR		v6.0
cpe:2.3:h:siemens:simatic_s7-400:-:::::::*	0	OR
		AND
cpe:2.3:o:siemens:simatic_s7-400_pn\/dp_v7_firmware::::::::	1	OR
cpe:2.3:h:siemens:simatic_s7-400_pn\/dp_v7:-:::::::*	0	OR
		AND
cpe:2.3:o:siemens:simatic_s7-400h_firmware::::::::	1	OR		v4.5
cpe:2.3:h:siemens:simatic_s7-400h:-:::::::*	0	OR
		AND
cpe:2.3:o:siemens:simatic_s7-410_firmware::::::::	1	OR		8.2.1
cpe:2.3:h:siemens:simatic_s7-410:-:::::::*	0	OR
		AND
cpe:2.3:o:siemens:simatic_s7-400h_firmware::::::::	1	OR	6.0.0	6.0.9
cpe:2.3:h:siemens:simatic_s7-400h:-:::::::*	0	OR

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:L/Au:N/C:N/I:N/A:C

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
NONE

Availability Impact
COMPLETE

Base Score
7.8

Severity
HIGH

Exploitability Score
10

Impact Score
6.9

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
HIGH

Base Score
7.5

Base Severity
HIGH

Exploitability Score
3.9

Impact Score
3.6

References

Reference URL	Reference Tags
https://cert-portal.siemens.com/productcert/pdf/ssa-113131.pdf	Vendor Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-18-317-02	Third Party Advisory US Government Resource

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2018-16557
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16557

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 17:14:11				Added to TrackCVE
2022-12-03 15:20:27	2018-12-13T16:29Z	2018-12-13T16:29:00	CVE Published Date	updated
2022-12-03 15:20:27		2022-08-10T20:28:20	CVE Modified Date	updated
2022-12-03 15:20:27		Modified	Vulnerability Status	updated
2023-01-10 13:10:16		2023-01-10T12:15:11	CVE Modified Date	updated
2023-01-10 13:10:17			Weakness Enumeration	update
2023-01-10 13:10:17	A vulnerability has been identified in SIMATIC S7-400 DP V7 CPU family (incl. SIPLUS variants) (All versions), 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). Sending of specially crafted packets to port 102/tcp via Ethernet interface via PROFIBUS or Multi Point Interfaces (MPI) could cause a denial of service condition on affected devices. Flashing with a firmware image may be required to recover the CPU. Successful exploitation requires an attacker to have network access to port 102/tcp via Ethernet interface or to be able to send messages via PROFIBUS or Multi Point Interfaces (MPI) to the device. No user interaction is required. If no access protection is configured, no 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.	A vulnerability has been identified in 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 S7-400 PN/DP V7 CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-410 CPU family (incl. SIPLUS variants) (All versions < V8.2.1). Sending of specially crafted packets to port 102/tcp via Ethernet interface via PROFIBUS or Multi Point Interfaces (MPI) could cause a denial of service condition on affected devices. Flashing with a firmware image may be required to recover the CPU. Successful exploitation requires an attacker to have network access to port 102/tcp via Ethernet interface or to be able to send messages via PROFIBUS or Multi Point Interfaces (MPI) to the device. No user interaction is required. If no access protection is configured, no 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.	Description	updated