#VU50641 Improper access control in SIMATIC PCS neo and TIA Portal


Published: 2021-02-11

Vulnerability identifier: #VU50641

Vulnerability risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-25238

CWE-ID: CWE-284

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
SIMATIC PCS neo
Web applications / Other software
TIA Portal
Server applications / SCADA systems

Vendor: Siemens

Description

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 bypass implemented security restrictions and gain unauthorized access to the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SIMATIC PCS neo: 3.0

TIA Portal: 15 - 16


External links
http://cert-portal.siemens.com/productcert/pdf/ssa-428051.pdf


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability