#VU17219 Improper authentication in WebAccess Scada Node and Advantech WebAccess - CVE-2019-6519

Vulnerability identifier: #VU17219

Vulnerability risk: Low

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:Clear]

CVE-ID: CVE-2019-6519

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WebAccess Scada Node
Server applications / SCADA systems
Advantech WebAccess
Server applications / SCADA systems

Vendor: Advantech Co., Ltd

Description

The vulnerability allows a remote attacker to bypass authentication.

The vulnerability exists due to improper authentication. A remote attacker can bypass authentication to upload malicious data.

Mitigation
Update to version 8.3.5.

Vulnerable software versions

WebAccess Scada Node: 8.3.0

Advantech WebAccess: before 8.3.5

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External links
https://ics-cert.us-cert.gov/advisories/ICSA-19-024-01

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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.