CVE-2020-12042 Path traversal in Opto 22 SoftPAC Project

Medium 6.5 Published Updated

An attacker with user privileges can achieve arbitrary file write and system access via unsanitized paths in firmware update zip files.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-12042?

CVE-2020-12042 is a medium-severity path traversal vulnerability in Opto 22 SoftPAC Project, published on 14 May 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Opto 22 SoftPAC Project Version 9.6 and prior. Paths specified within the zip files used to update the SoftPAC firmware are not sanitized. As a result, an attacker with user privileges can gain arbitrary file write access with system access.

Weakness: CWE-347

Which versions are affected by CVE-2020-12042?

It affects 1 product.

Products include Opto22 Softpac Project.

How do I fix CVE-2020-12042?

No fix has been published for CVE-2020-12042 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2020-12042 being exploited?

There is no known exploitation of CVE-2020-12042 in the wild and no public exploit code.

Sources

Also known as GHSA-939r-7q8p-37qg.

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