CVE-2021-41636 Path traversal in n/a

Medium 6.5 Published Updated

An attacker can use the CWD command to escape the FTP root directory and access or modify files across the entire operating system.

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-2021-41636?

CVE-2021-41636 is a medium-severity path traversal vulnerability in n/a, published on 24 Jun 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

MELAG FTP Server 2.2.0.4 allows an attacker to use the CWD command to break out of the FTP servers root directory and operate on the entire operating system, while the access restrictions of the user running the FTP server apply.

Weakness: CWE-22

Which versions are affected by CVE-2021-41636?

It affects 1 product.

Products include Melag Ftp Server.

How do I fix CVE-2021-41636?

No fix has been published for CVE-2021-41636 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-2021-41636 being exploited?

There is no known exploitation of CVE-2021-41636 in the wild and no public exploit code.

Sources

Also known as GHSA-qqcw-3w9h-vjff.

Is CVE-2021-41636 in your software?

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