pfSense 2.4.4-p3 diag_command.php csrf_callback txtCommand/txtRecallBuffer cross-site request forgery

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in pfSense 2.4.4-p3. Impacted is the function csrf_callback of the file diag_command.php. Executing a manipulation of the argument txtCommand/txtRecallBuffer can lead to cross-site request forgery. This vulnerability appears as CVE-2019-16667. The attack may be performed from remote. In addition, an exploit is available.

Detailsinfo

A vulnerability was found in pfSense 2.4.4-p3 (Firewall Software). It has been declared as problematic. This vulnerability affects the function csrf_callback of the file diag_command.php. The manipulation of the argument txtCommand/txtRecallBuffer with an unknown input leads to a cross-site request forgery vulnerability. The CWE definition for the vulnerability is CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. As an impact it is known to affect integrity. CVE summarizes:

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.

The weakness was presented 09/26/2019. This vulnerability was named CVE-2019-16667 since 09/21/2019. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details and also a public exploit are known.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. 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.

The vulnerability is also documented in the vulnerability database at Exploit-DB (48714). See VDB-142381 and VDB-142380 for similar entries. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.4

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross-site request forgery
CWE: CWE-352 / CWE-862 / CWE-863
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/21/2019 🔍
09/26/2019 +5 days 🔍
09/27/2019 +1 days 🔍
09/08/2025 +2173 days 🔍

Sourcesinfo

Advisory: 158614
Status: Not defined

CVE: CVE-2019-16667 (🔍)
GCVE (CVE): GCVE-0-2019-16667
GCVE (VulDB): GCVE-100-142378
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 09/27/2019 18:04
Updated: 09/08/2025 23:17
Changes: 09/27/2019 18:04 (37), 09/10/2020 20:45 (18), 12/28/2023 14:26 (4), 09/08/2025 23:17 (25)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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