Vulnerability identifier: #VU9893

Vulnerability risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-16753

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Advantech WebAccess
Server applications / SCADA systems

Vendor: Advantech Co., Ltd

Description
The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to insufficient validation of user-supplied input. A remote attacker can supply specially crafted file and cause the program to crash.

Mitigation
Update to version 8.3.

Vulnerable software versions

Advantech WebAccess: 8.0_20150412 - 8.2_20170817

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External links
http://ics-cert.us-cert.gov/advisories/ICSA-18-004-02

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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