#VU50746 Incorrect default permissions in WebAccess/SCADA - CVE-2020-13552

Vulnerability identifier: #VU50746

Vulnerability risk: Low

CVSSv4.0: 7.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Clear]

CVE-ID: CVE-2020-13552

CWE-ID: CWE-276

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
WebAccess/SCADA
Server applications / SCADA systems

Vendor: Advantech Co., Ltd

Description

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

The vulnerability exists due to incorrect default permissions within the "WebAccessMongoDB", "SaaS-Composer_keep-alive", "Dashboard", "WISE-PaaS_SaaS-Composer" and "InfluxDB" executables. A local user with access to the system can view contents of files and directories or modify them.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

WebAccess/SCADA: 9.0.1

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External links
https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1169

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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.