pfSense 2.4.4-p2/2.4.4-p3 diag_command.php timePeriod cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, has been found in pfSense 2.4.4-p2/2.4.4-p3. This vulnerability affects unknown code of the file diag_command.php. The manipulation of the argument timePeriod as part of Parameter leads to cross site scripting. This vulnerability is referenced as CVE-2019-12949. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in pfSense 2.4.4-p2/2.4.4-p3 (Firewall Software). This issue affects an unknown functionality of the file diag_command.php. The manipulation of the argument timePeriod as part of a Parameter leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. The summary by CVE is:

In pfSense 2.4.4-p2 and 2.4.4-p3, if it is possible to trick an authenticated administrator into clicking on a button on a phishing page, an attacker can leverage XSS to upload arbitrary executable code, via diag_command.php and rrd_fetch_json.php (timePeriod parameter), to a server. Then, the remote attacker can run any command with root privileges on that server.

The weakness was published 06/25/2019. The identification of this vulnerability is CVE-2019-12949 since 06/24/2019. The attack may be initiated remotely. The successful exploitation needs a simple authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

By approaching the search of inurl:diag_command.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.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Firewall Software

Name

• pfSense

Version

• 2.4.4-p2
• 2.4.4-p3

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion