CVE-2021-21064 Magento UPWARD-php Path traversal vulnerability via UPWARD Connector

Medium 4.9 Published Updated

An attacker with admin access can exploit a path traversal flaw in the Magento UPWARD Connector to read arbitrary files from the server.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-21064?

CVE-2021-21064 is a medium-severity path traversal vulnerability in Adobe Magento Commerce, published on 25 Feb 2021. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Magento UPWARD-php version 1.1.4 (and earlier) is affected by a Path traversal vulnerability in Magento UPWARD Connector version 1.1.2 (and earlier) due to the upload feature. An attacker could potentially exploit this vulnerability to upload a malicious YAML file that can contain instructions which allows reading arbitrary files from the remote server. Access to the admin console is required for successful exploitation.

Weakness: CWE-22

Which versions are affected by CVE-2021-21064?

It affects 2 products.

Products include Magento Upward Connector, Magento Upward Php.

How do I fix CVE-2021-21064?

No fix has been published for CVE-2021-21064 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-2021-21064 being exploited?

There is no known exploitation of CVE-2021-21064 in the wild and no public exploit code.

Sources

Also known as GHSA-p4pw-hpjx-5685.

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