A vulnerability classified as critical was found in pfSense up to 2.4.4-p3 (Firewall Software). Affected by this vulnerability is the function file_get_contents/file_put_contents of the file widgets/widgets/picture.widget.php. The manipulation of the argument widgetkey as part of a Parameter leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in pfSense through 2.4.4-p3. widgets/widgets/picture.widget.php uses the widgetkey parameter directly without sanitization (e.g., a basename call) for a pathname to file_get_contents or file_put_contents.

The weakness was released 09/26/2019. This vulnerability is known as CVE-2019-16915 since 09/26/2019. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

By approaching the search of inurl:widgets/widgets/picture.widget.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Entries connected to this vulnerability are available at 142380 and 142378.

Productinfo

Type

• Firewall Software

Name

• pfSense

Version

• 2.4.4-p3

License

• open-source

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CPE 2.2info

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