CVE-2017-1000479
HIGHEPSS 98th pctlDescription
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.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploit Intelligence
Very high risk: more likely to be exploited than 98% of all known CVEs.
References
Related Vulnerabilities
Other CWE-352 (Cross-Site Request Forgery) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2016-6277 | High | 8.8 | 100% | KEV | - |
| CVE-2014-0054 | Medium | 6.8 | 91% | - | Fix |
| CVE-2013-6429 | Medium | 6.8 | 90% | - | Fix |
| CVE-2022-41622 | High | 8.8 | 88% | - | - |
| CVE-2018-7700 | High | 8.8 | 75% | - | - |
| CVE-2015-2295 | Medium | 6.8 | 66% | - | - |
Common questions
How do I fix CVE-2017-1000479?
Upgrade opnsense to 16.1.16 or later.
Is CVE-2017-1000479 being actively exploited?
Not that we know of. CVE-2017-1000479 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 32.8% is the estimated probability that it will be exploited in the next 30 days. That is higher than 98% of all scored CVEs.
How severe is CVE-2017-1000479?
CVE-2017-1000479 has a CVSS v3 base score of 8.8, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2017-1000479 affect?
Published advisories record a fix for opnsense (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.