CVE-2021-27395 Information

Description

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.

CVSS Vector

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

Reference

https://cert-portal.siemens.com/productcert/pdf/ssa-766247.pdf

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.1