Vulnerability identifier: #VU26606

Vulnerability risk: Low

CVSSv3.1: 5.4 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-19102

CWE-ID: CWE-22

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 attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in SharpZipLib used in the upgrade service. A local attacker can send a specially crafted HTTP request and read arbitrary files on the system.

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 update from vendor's website.

Vulnerable software versions

Automation Studio: All versions

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

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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.