Vulnerability identifier: #VU9113

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-12719

CWE-ID: CWE-822

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 possibly execute arbitrary code on the target system.

The weakness exists due to untrusted pointer dereference. A remote attacker can supply a specially crafted program, cause the application to become unavailable and possibly execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Advantech WebAccess: 8.0-2014.10.31 - 8.2

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External links
http://ics-cert.us-cert.gov/advisories/ICSA-17-306-02

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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.