Improper access control in Siemens TIA Administrator (TIA Portal)

1) Improper access control

EUVDB-ID: #VU19159

Risk: Low

CVSSv4.0: 5.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2019-10915

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: Yes

Description

The vulnerability allows a local attacker to gain unauthorized access to sensitive information.

The vulnerability exists due to improper access restrictions. A local attacker can execute certain application commands without proper authentication.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

TIA Administrator (TIA Portal): before 1.0 SP1 Upd1

CPE2.3

• cpe:2.3:a:siemens:tia_administrator_tia_portal:*:*:*:*:*:*:*:*

External links

https://cert-portal.siemens.com/productcert/pdf/ssa-721298.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.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.