CVE-2020-27385 Path traversal in n/a

High 8.1 Published Updated

Authenticated attackers can read and write arbitrary files outside the web root via directory traversal in the FileEditor component.

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-2020-27385?

CVE-2020-27385 is a high-severity path traversal vulnerability in n/a, published on 12 Nov 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Incorrect Access Control in the FileEditor (/Admin/Views/FileEditor/) in FlexDotnetCMS before v1.5.11 allows an authenticated remote attacker to read and write to existing files outside the web root. The files can be accessed via directory traversal, i.e., by entering a .. (dot dot) path such as ..\..\..\..\..\<file> in the input field of the FileEditor. In FlexDotnetCMS before v1.5.8, it is also possible to access files by specifying the full path (e.g., C:\<file>). The files can then be edited via the FileEditor.

Weakness: CWE-22

Which versions are affected by CVE-2020-27385?

It affects 1 product.

Products include Flexdotnetcms Project Flexdotnetcms.

How do I fix CVE-2020-27385?

No fix has been published for CVE-2020-27385 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-2020-27385 being exploited?

There is no known exploitation of CVE-2020-27385 in the wild and no public exploit code.

Sources

Also known as GHSA-w3rf-qv39-2j3m.

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