CVE-2023-0593 Path traversal in yaffshiv

Medium 5.5 Published Updated

Attackers can force yaffshiv to write files outside the extraction directory by crafting a malicious YAFFS file.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2023-0593?

CVE-2023-0593 is a medium-severity path traversal vulnerability in devttys0 yaffshiv, published on 31 Jan 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A path traversal vulnerability affects yaffshiv YAFFS filesystem extractor. By crafting a malicious YAFFS file, an attacker could force yaffshiv to write outside of the extraction directory.

This issue affects yaffshiv up to version 0.1 included, which is the most recent at time of publication.

Weakness: CWE-22

Which versions are affected by CVE-2023-0593?

It affects 1 product.

Products include Yaffshiv Project Yaffshiv.

How do I fix CVE-2023-0593?

No fix has been published for CVE-2023-0593 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-2023-0593 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-0593 exists.

Sources

Also known as GHSA-ppwj-pqwg-cmvw.

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