PT-2021-11118 · Siemens · Tia Portal+1

Will Dormann · Published 2021-02-09 · Updated 2022-10-21 · CVE-2020-25238

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: PCS neo (Administration Console) versions prior to V3.1 TIA Portal versions V15 through V16

Description: A vulnerability has been identified that could allow a local attacker to execute code with SYSTEM privileges by manipulating certain files in specific folders. The issue can be exploited by an attacker with a valid account and limited access rights on the system.

Recommendations: For PCS neo (Administration Console) versions prior to V3.1, update to version V3.1 or later to resolve the issue. For TIA Portal versions V15 through V16, update to a version later than V16 to resolve the issue. As a temporary workaround, consider restricting access to sensitive folders and files to minimize the risk of exploitation.

Fix

Improper Access Control

Uncontrolled Search Path Element

Weakness Enumeration

CWE-284

CWE-427

Related Identifiers

CVE-2020-25238

Affected Products

Pcs Neo

Tia Portal

References · 6

• https://cert-portal.siemens.com/productcert/pdf/ssa-428051.pdf · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-25238 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-25238 · Security Note
• https://us-cert.cisa.gov/ics/advisories/icsa-21-040-05 · Note
• https://kb.cert.org/vuls/id/466044 · Note
• https://t.me/cvenotify/9855 · Telegram Post