Vulnerability identifier: #VU49050

Vulnerability risk: Low

CVSSv3.1: 8.1 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-13535

CWE-ID: CWE-276

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
LinkMaster
Server applications / Other server solutions

Vendor: Kepware

Description

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

The vulnerability exists due to incorrect default permissions for files and folders that are set by the application. A local attacker can globally overwrite service configuration and execute arbitrary code with elevated privileges.

Mitigation
Install update from vendor's website.

Vulnerable software versions

LinkMaster: 3.0.94.0

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External links
http://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1147
http://ics-cert.us-cert.gov/advisories/icsa-20-352-03
http://my.kepware.com/s/login/?ec=302&startURL=%2Fs%2F

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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.