Vulnerability identifier: #VU26604

Vulnerability risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-19100

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Automation Studio
Other software / Other software solutions

Vendor: B&R Industrial Automation GmbH

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper permission checks in the upgrade service. A local user can delete arbitrary files via an exposed interface.

This vulnerability affects the following versions:

Automation Studio, Versions 4.0.x

Automation Studio, Versions 4.1.x

Automation Studio, Versions 4.2.x

Automation Studio, versions prior to 4.3.11SP

Automation Studio, versions prior to 4.4.9SP

Automation Studio, versions prior to 4.5.4SP

Automation Studio, versions prior to 4.6.3SP

Automation Studio, versions prior to 4.7.2

Automation Studio, versions prior to 4.8.1

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Automation Studio: All versions

---

External links
http://ics-cert.us-cert.gov/advisories/icsa-20-093-01
http://www.br-automation.com/en-gb/service/cyber-security/

---

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.