VDB-154583 · CVE-2020-10797 · GCVE-0-2020-10797

pfSense up to 2.4.4 diag_ping.php Hostname cross site scripting

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability identified as problematic has been detected in pfSense up to 2.4.4. Affected by this vulnerability is an unknown functionality of the file diag_ping.php. The manipulation of the argument Hostname leads to cross site scripting. This vulnerability is listed as CVE-2020-10797. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in pfSense up to 2.4.4 (Firewall Software). It has been rated as problematic. This issue affects some unknown functionality of the file diag_ping.php. The manipulation of the argument hostname with an unknown input 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:

An XSS vulnerability resides in the hostname field of the diag_ping.php page in pfsense before 2.4.5 version. After passing inputs to the command and executing this command, the $result variable is not sanitized before it is printed.

The weakness was presented 04/29/2020 (Website). It is possible to read the advisory at docs.netgate.com. The identification of this vulnerability is CVE-2020-10797 since 03/20/2020. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

By approaching the search of inurl:diag_ping.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 2.4.5 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Firewall Software

Name

pfSense

Version

License

open-source

Website

Product: https://github.com/pfsense/pfsense/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: pfSense 2.4.5
Patch: github.com

Timelineinfo

03/20/2020 🔍
04/29/2020 +40 days 🔍
04/30/2020 +1 days 🔍
05/06/2025 +1832 days 🔍

Sourcesinfo

Product: github.com

Advisory: cc3990a334059018b004c91eeb66c147d8afe83d
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-10797 (🔍)
GCVE (CVE): GCVE-0-2020-10797
GCVE (VulDB): GCVE-100-154583

Entryinfo

Created: 04/30/2020 09:21
Updated: 05/06/2025 08:00
Changes: 04/30/2020 09:21 (39), 04/30/2020 09:26 (18), 10/14/2020 12:32 (1), 06/04/2024 11:58 (19), 05/06/2025 08:00 (5)
Complete: 🔍
Cache ID: 216::103