HTTP: Pfsense CSRF Error Page Clickjacking
This signature detects attempts to exploit a known vulnerability against Pfsense. A successful attack can lead to arbitrary code execution.
Extended 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.
Affected Products
Opnsense_project opnsense
References
CVE: CVE-2017-1000479
URL: https://doc.pfsense.org/index.php/2.4.2_New_Features_and_Changes
Short Name
HTTP:MISC:PFSENSE-CLICKJACK
Severity
Minor
Recommended
False
Recommended Action
Drop
Category
HTTP
Keywords
CSRF CVE-2017-1000479 Clickjacking Error Page Pfsense
Release Date
10/03/2019
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3590
False Positive
Unknown
Vendors
Netgate
Opnsense_project
CVSS Score
6.8