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CVE-2018-4850

A vulnerability has been identified in SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below (All versions), SIMATIC S7-400 (incl. F) CPU hardware version 5.0 (All firmware versions < V5.2), ...

Published: May 16, 2018Updated: Nov 21, 2024 Sources: CVE List NVD csafCWE-20
NVD MITRE
7.5CVSSHIGH
EPSS Score
2.5%
Top 17.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-20NVD-CWE-noinfo

Affected Products

SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below, SIMATIC S7-400 (incl. F) CPU hardware version 5.0, SIMATIC S7-400H CPU hardware version 4.5 and belowSiemens AGICS / OT / IoT
simatic s7-400 firmwaresiemensICS / OT / IoT
simatic s7-400h firmwaresiemensICS / OT / IoT
siemens agcommercialDEEnterprise Softwareaka siemens
siemenscommercialDEEnterprise Softwareaka siemens ag

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://cert-portal.siemens.com/productcert/html/ssa-914382.html
cert-portal.siemens.com
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2018/icsa-18-137-03.json
raw.githubusercontent.com
https://www.cisa.gov/news-events/ics-advisories/icsa-18-137-03
cisa.gov
and 9 more references View all →

Timeline

Published
May 16, 2018
Last Updated
Nov 21, 2024

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