Vulnerability identifier: #VU7997

Vulnerability risk: High

CVSSv3.1: 8.9 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2017-9640

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
WebCTRL
Server applications / SCADA systems
i-Vu
Server applications / SCADA systems
SiteScan Web
Server applications / SCADA systems

Vendor: Automated Logic Corporation

Description
The vulnerability allows a remote authenticated attacker to gain elevated privileges on the target system.

The weakness exists due to path traversal. A remote attacker can overwrite arbitrary files and execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

WebCTRL: 5.2 - 6.1

i-Vu: 5.2 - 6.0

SiteScan Web: 5.2 - 6.1

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External links
http://ics-cert.us-cert.gov/advisories/ICSA-17-234-01

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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. However, proof of concept for this vulnerability is available.