CVE-2021-27395

mediumPriorität · verfolgen · 32OT-Risiko · erhöhtEPSS 0.008 · 57. PerzentilDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.80% (57th) EPSS

CVSS 5.5 · medium

Is it mine?

20 products

Prüfe deine Angriffsfläche

Who says so?

5 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · bewertet 2026-10-28

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 versions), SIMATIC Process Historian 2020 (All versions). An interface in the software that is used for critical functionalities lacks authentication, which could allow a malicious user to maliciously insert, modify or delete data.

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

BehobenSIMATIC Process Historian 2014siemens_psirt
Update to SP3 Update 6 or later version
https://support.industry.siemens.com/cs/ww/en/view/109780528/
BehobenSIMATIC Process Historian 2020siemens_psirt
To update, use the Process Historian version as bundled with PCS neo V3.1 Upd1 (https://support.industry.siemens.com/cs/ww/en/view/109804750/) or with PCS 7 V9.1 SP1 (https://support.industry.siemens.com/cs/ww/en/view/109805073/)
BehobenSIMATIC Process Historian 2014cisa_csaf_ot
Update to SP3 Update 6 or later version
https://support.industry.siemens.com/cs/ww/en/view/109780528/
BehobenSIMATIC Process Historian 2020cisa_csaf_ot
To update, use the Process Historian version as bundled with PCS neo V3.1 Upd1 (https://support.industry.siemens.com/cs/ww/en/view/109804750/) or with PCS 7 V9.1 SP1 (https://support.industry.siemens.com/cs/ww/en/view/109805073/)
MitigationSIMATIC Process Historian 2013 and earliersiemens_psirt
Consider upgrading to a newer SIMATIC Process Historian version
MitigationSIMATIC Process Historian 2014siemens_psirt
Deactivate following incoming rules in the local Windows firewall: - PH Redundancy Services - PH Wcf MessageQueue Service (RedundancyMaintenanceService) - PH Wcf MessageQueue Service (SqlMirroringSetup) - PH Wcf MessageQueue Service (MaintenanceService) - PH SQL-Server Mirroring Port (UDP) - PH SQL-Server Mirroring Port (TCP)
MitigationSIMATIC Process Historian 2019siemens_psirt
Consider upgrading to a newer SIMATIC Process Historian version
MitigationSIMATIC Process Historian 2020siemens_psirt
Deactivate following incoming rules in the local Windows firewall: - PH Redundancy Services - PH Wcf MessageQueue Service (RedundancyMaintenanceService) - PH Wcf MessageQueue Service (SqlMirroringSetup) - PH Wcf MessageQueue Service (MaintenanceService) - PH SQL-Server Mirroring Port (UDP) - PH SQL-Server Mirroring Port (TCP)
MitigationSIMATIC Process Historian 2013 and earliercisa_csaf_ot
Consider upgrading to a newer SIMATIC Process Historian version
MitigationSIMATIC Process Historian 2014cisa_csaf_ot
Deactivate following incoming rules in the local Windows firewall: - PH Redundancy Services - PH Wcf MessageQueue Service (RedundancyMaintenanceService) - PH Wcf MessageQueue Service (SqlMirroringSetup) - PH Wcf MessageQueue Service (MaintenanceService) - PH SQL-Server Mirroring Port (UDP) - PH SQL-Server Mirroring Port (TCP)
MitigationSIMATIC Process Historian 2019cisa_csaf_ot
Consider upgrading to a newer SIMATIC Process Historian version
MitigationSIMATIC Process Historian 2020cisa_csaf_ot
Deactivate following incoming rules in the local Windows firewall: - PH Redundancy Services - PH Wcf MessageQueue Service (RedundancyMaintenanceService) - PH Wcf MessageQueue Service (SqlMirroringSetup) - PH Wcf MessageQueue Service (MaintenanceService) - PH SQL-Server Mirroring Port (UDP) - PH SQL-Server Mirroring Port (TCP)
Kein Fix geplantSIMATIC Process Historian 2013 and earliersiemens_psirt
Currently no remediation is planned
Kein Fix geplantSIMATIC Process Historian 2019siemens_psirt
Currently no remediation is planned
Kein Fix geplantSIMATIC Process Historian 2013 and earliercisa_csaf_ot
Currently no remediation is planned
Kein Fix geplantSIMATIC Process Historian 2019cisa_csaf_ot
Currently no remediation is planned

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

9.8

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–critical · 5.5–9.8

v2.05.5mediumAV:N/AC:L/Au:S/C:N/I:P/A:Pprimary · NVD / NIST USAusnutzbarkeit 8 · Auswirkung 4.9

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Hprimary · NVD / NIST USAusnutzbarkeit 2.8 · Auswirkung 5.2

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · CISA US

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE

v3.17.4highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-306USCWE-306USCWE-306US

betroffene Produkte (20)

Betroffene Produkte und Versionsbereiche.

SIMATIC Process Historian 2013 and earlieralle Versionencisa_csaf_otUS
SIMATIC Process Historian 2014alle Versionencisa_csaf_otUS
SIMATIC Process Historian 2019alle Versionencisa_csaf_otUS
SIMATIC Process Historian 2020alle Versionencisa_csaf_otUS
Siemens SIMATIC Process Historian 2013 and earlier≤ vers:all/*cisa_csaf_otUS
Siemens SIMATIC Process Historian 2014< SP3_Update_6cisa_csaf_otUS
Siemens SIMATIC Process Historian 2019≤ vers:all/*cisa_csaf_otUS
Siemens SIMATIC Process Historian 2020≤ vers:all/*cisa_csaf_otUS
Siemens SIMATIC Process Historian 2013 and earlier≤ All versionsenisa_euvdEU
Siemens SIMATIC Process Historian 2014All versions → SP3 Update 6enisa_euvdEU
Siemens SIMATIC Process Historian 2019≤ All versionsenisa_euvdEU
Siemens SIMATIC Process Historian 2020≤ All versionsenisa_euvdEU
siemens simatic process historian 2013alle VersionennvdUScpe:2.3:a:siemens:simatic_process_historian_2013:*:*:*:*:*:*:*:*
siemens simatic process historian 2014alle VersionennvdUScpe:2.3:a:siemens:simatic_process_historian_2014:*:*:*:*:*:*:*:*
siemens simatic process historian 2019alle VersionennvdUScpe:2.3:a:siemens:simatic_process_historian_2019:*:*:*:*:*:*:*:*
siemens simatic process historian 2020alle VersionennvdUScpe:2.3:a:siemens:simatic_process_historian_2020:*:*:*:*:*:*:*:*
Siemens SIMATIC Process Historian 2013 and earlier≤ vers:all/*siemens_psirtDE
Siemens SIMATIC Process Historian 2014< SP3 Update 6siemens_psirtDE
Siemens SIMATIC Process Historian 2019≤ vers:all/*siemens_psirtDE
Siemens SIMATIC Process Historian 2020≤ vers:all/*siemens_psirtDE

Advisories (2)

Hersteller- und Ökosystem-Meldungen dazu.

SSA-766247SSA-766247: Authentication Vulnerability in SIMATIC Process Historian2021-10-12csaf · siemens_psirtDE
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.
ICSA-21-287-09Siemens SIMATIC Process Historian2021-10-12icsa · cisa_csaf_otUS
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.

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd cisa_csaf_ot nvd siemens_psirt NVD CVE.org MITRE

veröffentlicht 2021-10-12geändert 2026-06-17

Referenzen (7)

Externe Belege — Patches, Meldungen, Analysen.

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