Remote code execution in B&R Industrial Automation Automation Studio 4

1) Input validation error

EUVDB-ID: #VU66571

Risk: High

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-22289

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to insufficient validation of user-supplied input within the project upload. A remote attacker can pass specially crafted input to the application and execute arbitrary code on the target system.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Automation Studio 4: All versions

CPE2.3

• cpe:2.3:a:b_and_r_industrial_automation_gmbh:automation_studio_4:*:*:*:*:*:*:*:*

External links

https://www.br-automation.com/downloads_br_productcatalogue/assets/1640529306294-en-original-1.0.pdf

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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