CVE-2021-40964 Path traversal in n/a

Medium 6.5 Published Updated

Attackers with admin credentials or via CSRF can use path traversal in the fullpath parameter to upload malicious files to arbitrary directories.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-40964?

CVE-2021-40964 is a medium-severity path traversal vulnerability in n/a, published on 15 Sep 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A Path Traversal vulnerability exists in TinyFileManager all version up to and including 2.4.6 that allows attackers to upload a file (with Admin credentials or with the CSRF vulnerability) with the "fullpath" parameter containing path traversal strings (../ and ..\) in order to escape the server's intended working directory and write malicious files onto any directory on the computer.

Weakness: CWE-22

Which versions are affected by CVE-2021-40964?

It affects 1 product.

Products include Prasathmani Tiny File Manager.

How do I fix CVE-2021-40964?

No fix has been published for CVE-2021-40964 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-2021-40964 being exploited?

There is no known exploitation of CVE-2021-40964 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry and 1 proofs of concept on GitHub.

Sources

Also known as GHSA-fw9q-rwpp-xcw5.

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