#VU12755 Heap-based buffer overflow in Advantech Co., Ltd products - CVE-2018-8845

Vulnerability identifier: #VU12755

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2018-8845

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Advantech WebAccess
Server applications / SCADA systems
WebAccess Dashboard
Server applications / SCADA systems
WebAccess Scada Node
Server applications / SCADA systems
WebAccess/NMS
Server applications / Remote management servers, RDP, SSH

Vendor: Advantech Co., Ltd

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to heap-based buffer overflow. A remote attacker can trigger memory corruption and execute arbitrary code.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Update WebAccess Scada Note to version 8.3.1.

Vulnerable software versions

Advantech WebAccess: 8.2_20170817 - 8.3

WebAccess Dashboard: 2.0.15

WebAccess Scada Node: 8.3.0

WebAccess/NMS: 2.0.3

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External links
https://ics-cert.us-cert.gov/advisories/ICSA-18-135-01

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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.