Vulnerability identifier: #VU59820

Vulnerability risk: Medium

CVSSv3.1: 8.6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-40396

CWE-ID: CWE-276

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
DeviceOn/iService
Server applications / Other server solutions

Vendor: Advantech Co., Ltd

Description

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

The vulnerability exists due to incorrect default permissions in the installation. A remote authenticated attacker can send a specially crafted file and gain elevated privileges on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

DeviceOn/iService: 1.1.7

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External links
http://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1408

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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