Vulnerability in SIMATIC PCS 7 and WinCC Products by Siemens
CVE-2021-40363

7.8HIGH

Key Information:

Vendor

Siemens
Status
Simatic Pcs 7 V8.2
Simatic Pcs 7 V9.0
Simatic Pcs 7 V9.1
Simatic Wincc V15 And Earlier
Vendor
CVE Published:
9 February 2022

What is CVE-2021-40363?

A vulnerability exists in Siemens SIMATIC PCS 7 and WinCC products where credentials of a local system account are stored in a project file that may be publicly accessible. The use of an outdated cipher algorithm potentially permits an attacker to brute force these credentials, allowing unauthorized system access. This situation could lead to significant security risks for organizations relying on these systems for operational continuity.

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Affected Version(s)

SIMATIC PCS 7 V8.2 All versions

SIMATIC PCS 7 V9.0 All versions

SIMATIC PCS 7 V9.1 All versions < V9.1 SP1

References

https://cert-portal.siemens.com/productcert/pdf/ssa-91416...
x_refsource_MISC

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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