Vulnerability Monitor

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CVE-2020-25238

A vulnerability has been identified in PCS neo (Administration Console) (All versions < V3.1), TIA Portal (V15, V15.1 and V16). Manipulating certain files in specific folders could allow a local attacker to execute code with SYSTEM privileges. The security vulnerability could be exploited by an attacker with a valid account and limited access rights on the system.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.8, requiring local system access to exploit with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 2 products from siemens, from siemens organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2021, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2021-02-09T17:15:13.610

Last Modified

2024-11-21T05:17:44.127

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

10.0

Weaknesses

Type: Secondary
CWE-284
Type: Primary
CWE-427

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	siemens	simatic_process_control_system_neo	< 3.1	Yes
Application	siemens	totally_integrated_automation_portal	15	Yes
Application	siemens	totally_integrated_automation_portal	15.1	Yes
Application	siemens	totally_integrated_automation_portal	16	Yes

References

https://cert-portal.siemens.com/productcert/pdf/ssa-428051.pdf Vendor Advisory ([email protected])
https://us-cert.cisa.gov/ics/advisories/icsa-21-040-05 Third Party Advisory, US Government Resource, VDB Entry ([email protected])
https://www.kb.cert.org/vuls/id/466044 Third Party Advisory, US Government Resource ([email protected])
https://cert-portal.siemens.com/productcert/pdf/ssa-428051.pdf Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://us-cert.cisa.gov/ics/advisories/icsa-21-040-05 Third Party Advisory, US Government Resource, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://www.kb.cert.org/vuls/id/466044 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For siemens's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.