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CVE-2021-27395

A vulnerability has been identified in SIMATIC Process Historian 2013 and earlier (All versions), SIMATIC Process Historian 2014 (All versions < SP3 Update 6), SIMATIC Process Historian 2019 (All v...

Published: Oct 12, 2021Updated: Nov 21, 2024 Sources: CVE List NVD csafCWE-306
8.1HIGH
NVD MITRE
EPSS Score
0.8%
Top 46.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

The latest update for SIMATIC Process Historian (PH) fixes an authentication vulnerability in the configuration interface of redundant PH instances that could enable the execution of admin operations on the database. The related vulnerable interface is restricted to local access on recent versions starting from SIMATIC Process Historian 2020. Siemens has released updates for several affected products and recommends to update to the latest versions. Siemens recommends specific countermeasures for products where updates are not, or not yet available.

No summary for this CVE yet.

CVSS Vector Breakdown

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

CWE-306

Affected Products

Siemens
commercial·DEaka siemens ag
SIMATIC Process Historian 2013 and earlier
ICS / OT / IoT
SIMATIC Process Historian 2014
ICS / OT / IoT
SIMATIC Process Historian 2019
ICS / OT / IoT
SIMATIC Process Historian 2020
ICS / OT / IoT
simatic process historian 2013
ICS / OT / IoT
and 3 more affected products View all →

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://cert-portal.siemens.com/productcert/csaf/ssa-766247.json
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/txt/ssa-766247.txt
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/pdf/ssa-766247.pdf
cert-portal.siemens.com
and 10 more references View all →

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