Authentication Bypass by Primary Weakness in Siemens products - CVE-2024-42513

Vulnerability identifier: #VU105635

CSH Severity: High

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber

CVE-ID: CVE-2024-42513

CWE-ID: CWE-305

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: Siemens

Affected software:
SINUMERIK Edge
SIMATIC IPC DiagMonitor
SIMATIC WinCC Unified
SIMATIC BRAUMAT
SIMATIC Energy Manager PRO
SIMATIC SISTAR
Totally Integrated Automation Portal (TIA Portal)
SIMATIC WinCC

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to insufficient access control in the OPC UA .NET Standard Stack. A remote attacker can bypass application authentication when using HTTPS endpoints.

Install updates from vendor's website.

• https://cert-portal.siemens.com/productcert/txt/ssa-858251.txt