CVE-2017-1000479: netgate pfsense Cross-Site Request Forgery (CSRF)

Vulnerability summary

CVE-2017-1000479 is a high (CVSS 8.8) Cross-Site Request Forgery (CSRF) vulnerability in netgate pfsense. EPSS estimates a 31.70% chance of exploitation in the next 30 days, higher than 98.2% of scored vulnerabilities. 3 public exploits are recorded.

Timeline

1. 03-01-2018
   PublishedVulnerability first disclosed.
2. 05-08-2024
   Last modifiedVulnerability information updated.

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.

• CWE-352Cross-Site Request Forgery (CSRF)The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.