CVE-2021-32949 MDT AutoSave Relative Path Traversal

High 7.5 Published Updated

An attacker can traverse directories to replace existing files with malicious ones in MDT AutoSave, impacting industrial control system integrity.

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

What is CVE-2021-32949?

CVE-2021-32949 is a high-severity path traversal vulnerability in MDT Software A4SP, published on 1 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An attacker could utilize a function in MDT AutoSave versions prior to v6.02.06 that permits changing a designated path to another path and traversing the directory, allowing the replacement of an existing file with a malicious file.

Weakness: CWE-22, CWE-23

Which versions are affected by CVE-2021-32949?

It affects 2 products.

Products include Auvesy-Mdt Autosave, Auvesy-Mdt Autosave for System Platform.

How do I fix CVE-2021-32949?

No fix has been published for CVE-2021-32949 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-2021-32949 being exploited?

There is no known exploitation of CVE-2021-32949 in the wild and no public exploit code.

Sources

Also known as GHSA-67v2-p8pr-2v7r.

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