pfSense Firewall up to 2.2.0 WebGUI cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in pfSense Firewall up to 2.2.0. This affects an unknown function of the component WebGUI. Such manipulation leads to cross site scripting. This vulnerability is listed as CVE-2015-2294. The attack may be performed from remote. In addition, an exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in pfSense Firewall up to 2.2.0 (Firewall Software) and classified as critical. Affected by this issue is an unknown part of the component WebGUI. The manipulation 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 confidentiality, integrity, and availability. CVE summarizes:

Multiple cross-site scripting (XSS) vulnerabilities in the WebGUI in pfSense before 2.2.1 allow remote attackers to inject arbitrary web script or HTML via the (1) zone parameter to status_captiveportal.php; (2) if or (3) dragtable parameter to firewall_rules.php; (4) queue parameter in an add action to firewall_shaper.php; (5) id parameter in an edit action to services_unbound_acls.php; or (6) filterlogentries_time, (7) filterlogentries_sourceipaddress, (8) filterlogentries_sourceport, (9) filterlogentries_destinationipaddress, (10) filterlogentries_interfaces, (11) filterlogentries_destinationport, (12) filterlogentries_protocolflags, or (13) filterlogentries_qty parameter to diag_logs_filter.php.

The weakness was presented 04/01/2015 (Website). The advisory is shared for download at pfsense.org. This vulnerability is handled as CVE-2015-2294 since 03/14/2015. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

A public exploit has been developed by High-Tech Bridge SA and been published even before and not after the advisory. The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 106493 (pfSense < 2.2.1 Multiple Vulnerabilities (SA-15_02 - SA-15_04)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 34070 (pfSense Multiple Vulnerabilities (pfSense-SA-15_04,pfSense-SA-15_03)).

Upgrading to version 2.2.1 eliminates this vulnerability. A possible mitigation has been published 2 years after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (36506), Tenable (106493) and SecurityFocus (BID 73344†). See VDB-74780 for similar entry. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.1
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: High-Tech Bridge SA
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 106493
Nessus Name: pfSense < 2.2.1 Multiple Vulnerabilities (SA-15_02 - SA-15_04)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 800967
OpenVAS Name: pfSense Cross Site Scripting and Cross Site Request Forgery Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Firewall 2.2.1

Timelineinfo

03/14/2015 🔍
03/25/2015 +11 days 🔍
03/26/2015 +1 days 🔍
03/26/2015 +0 days 🔍
04/01/2015 +6 days 🔍
04/01/2015 +0 days 🔍
04/02/2015 +1 days 🔍
03/25/2016 +358 days 🔍
01/31/2018 +677 days 🔍
05/02/2022 +1552 days 🔍

Sourcesinfo

Advisory: 131022
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-2294 (🔍)
GCVE (CVE): GCVE-0-2015-2294
GCVE (VulDB): GCVE-100-74588
SecurityFocus: 73344 - pfSense Cross Site Scripting and Cross Site Request Forgery Vulnerabilities

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 04/02/2015 10:40
Updated: 05/02/2022 14:17
Changes: 04/02/2015 10:40 (46), 04/17/2018 10:31 (33), 05/02/2022 14:17 (2)
Complete: 🔍
Cache ID: 216::103

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