CVE-2019-16667 Cross-site request forgery in n/a

High 8.8 Published Updated

Cross-site request forgery in pfSense allows attackers to execute arbitrary OS commands by tricking administrators into visiting a malicious site.

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-2019-16667?

CVE-2019-16667 is a high-severity vulnerability in n/a, published on 26 Sep 2019. 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

diag_command.php in pfSense 2.4.4-p3 allows CSRF via the txtCommand or txtRecallBuffer field, as demonstrated by executing OS commands. This occurs because csrf_callback() produces a "CSRF token expired" error and a Try Again button when a CSRF token is missing.

Weakness: CWE-352

Which versions are affected by CVE-2019-16667?

It affects 1 product.

Products include Netgate Pfsense.

How do I fix CVE-2019-16667?

No fix has been published for CVE-2019-16667 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-16667 being exploited?

There is no known exploitation of CVE-2019-16667 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-4wg3-58cf-qv2h.

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