SB2025071532 - Multiple vulnerabilities in Siemens TIA Administrator

Description

This security bulletin contains information about 2 vulnerabilities.

1) Improper Verification of Cryptographic Signature (CVE-ID: CVE-2025-23364)

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local attacker to compromise the target system.

The vulnerability exists due to the lack of proper verification of a cryptographic signature. A local attacker can bypass the check and execute arbitrary code during installations.

2) Improper access control (CVE-ID: CVE-2025-23365)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A local user can overwrite cache files and modify the downloads path, leading to privilege escalation and arbitrary code execution.

Remediation

Install update from vendor's website.

References

• https://cert-portal.siemens.com/productcert/html/ssa-573669.html
• https://www.cisa.gov/news-events/ics-advisories/icsa-25-191-03