National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-1000479 Detail

Current Description

pfSense versions 2.4.1 and lower are vulnerable to clickjacking attacks in the CSRF error page resulting in privileged execution of arbitrary code, because the error detection occurs before an X-Frame-Options header is set. This is fixed in 2.4.2-RELEASE. 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.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 8.8 HIGH
Vector: AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H (V3.0 legend)
Impact Score: 5.9
Exploitability Score: 2.8


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 6.8 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Victim must voluntarily interact with attack mechanism
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.openwall.com/lists/oss-security/2017/11/22/7 Exploit Mailing List Third Party Advisory
https://doc.pfsense.org/index.php/2.4.2_New_Features_and_Changes Issue Tracking Vendor Advisory
https://github.com/opnsense/core/commit/d218b225 Patch Third Party Advisory
https://github.com/pfsense/pfsense/commit/386d89b07 Patch Third Party Advisory
https://www.netgate.com/blog/pfsense-2-4-2-release-p1-and-2-3-5-release-p1-now-available.html Third Party Advisory
https://www.securify.nl/en/advisory/SFY20171101/clickjacking-vulnerability-in-csrf-error-page-pfsense.html Exploit Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • Cross-Site Request Forgery (CSRF) (CWE-352)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:netgate:pfsense:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
2.4.1
 cpe:2.3:a:opnsense_project:opnsense:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
16.1.16


Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-1000479
NVD Published Date:
01/03/2018
NVD Last Modified:
05/30/2019