Improper access control in Emerson ValveLink

1) Improper access control

EUVDB-ID: #VU25758

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-2020-6971

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a local user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to insecure configuration parameters. A local user can bypass implemented security restrictions, gain elevated privileges and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

ValveLink: v12.0.264 - v13.4.118

External links

http://ics-cert.us-cert.gov/advisories/icsa-20-063-01

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.