Vulnerability identifier: #VU27943

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-12042

CWE-ID: CWE-73

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PAC Project Basic
Client/Desktop applications / Other client software
PAC Project Professional
Client/Desktop applications / Other client software

Vendor: Opto22

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the paths specified within the zip files used to update the SoftPAC firmware are not sanitized. A remote authenticated attacker can gain arbitrary file write access with system access. 

Mitigation
Install updates from vendor's website.

Vulnerable software versions

PAC Project Basic: 9.6

PAC Project Professional: 9.6

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External links
http://www.us-cert.gov/ics/advisories/icsa-20-135-01

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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.