CVE-2022-43748 Path traversal in Presto File Server

Medium 5.8 Published Updated

Remote attackers can write arbitrary files to the server due to a path traversal vulnerability in Synology Presto File Server.

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-2022-43748?

CVE-2022-43748 is a medium-severity path traversal vulnerability in Synology Presto File Server, published on 26 Oct 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in file operation management in Synology Presto File Server before 2.1.2-1601 allows remote attackers to write arbitrary files via unspecified vectors.

Weakness: CWE-22

Which versions are affected by CVE-2022-43748?

It affects 1 product.

Products include Synology Presto File Server.

How do I fix CVE-2022-43748?

No fix has been published for CVE-2022-43748 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-2022-43748 being exploited?

There is no known exploitation of CVE-2022-43748 in the wild and no public exploit code.

Sources

Also known as GHSA-86gc-h854-7wv3.

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