pfSense 2.4.1 CSRF Error Page cross-site request forgery

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.4$0-$5k0.00

A vulnerability was found in pfSense 2.4.1 (Firewall Software). It has been declared as critical. Affected by this vulnerability is an unknown code of the component CSRF Error Page. The manipulation 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 confidentiality, integrity, and availability. The summary by CVE is:

pfSense versions 2.4.1 and lower are vulnerable to a clickjacking attacks in the CSRF error page resulting in privileged execution of arbitrary code. See first reference URL for full details. Credits are Yorick Koster. OPNsense, a 2015 fork of pfSense, was not vulnerable since version 16.1.16 released on June 06, 2016. The unprotected web form was removed from the code during an internal security audit under "possibly insecure" suspicions.

The bug was discovered 01/03/2018. The weakness was presented 01/03/2018 (oss-sec). It is possible to read the advisory at openwall.com. This vulnerability is known as CVE-2017-1000479 since 01/03/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

It is declared as highly functional. The vulnerability scanner Nessus provides a plugin with the ID 106506 (pfSense 2.3.x < 2.3.5 / 2.4.x < 2.4.2 Multiple XSS Vulnerabilites (SA-17_08 / SA-17_09)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses : XSS and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 34071 (pfSense clickjacking vulnerability).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (106506). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Highly functional

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 106506
Nessus Name: pfSense 2.3.x < 2.3.5 / 2.4.x < 2.4.2 Multiple XSS Vulnerabilites (SA-17_08 / SA-17_09)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 900821
OpenVAS Name: pfSense Remote Code Execution & Cross-Site Request Forgery Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: pfsense_clickjacking.rb
MetaSploit Name: Clickjacking Vulnerability In CSRF Error Page pfSense
MetaSploit File: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

10/31/2017 🔍
01/03/2018 +64 days 🔍
01/03/2018 +0 days 🔍
01/03/2018 +0 days 🔍
01/03/2018 +0 days 🔍
01/04/2018 +1 days 🔍
01/31/2018 +27 days 🔍
01/20/2023 +1815 days 🔍

Sourcesinfo

Advisory: openwall.com
Status: Not defined

CVE: CVE-2017-1000479 (🔍)

Entryinfo

Created: 01/04/2018 07:32 AM
Updated: 01/20/2023 08:18 AM
Changes: 01/04/2018 07:32 AM (69), 12/28/2019 03:38 PM (6), 01/20/2023 08:18 AM (4)
Complete: 🔍
Cache ID: 18:7DB:40

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