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    CVE-2017-1000479

    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.

    Published:Jan 3, 2018
    Last Modified:Nov 21, 2024
    EPS:Jan 3, 2018
    EPSS Score:0.18994
    CVSS Score:8.8

    Affected Products

    Vendor
    Netgate
    Product
    Pfsense
    Vendor
    Opnsense Project
    Product
    Opnsense

    Exploits

    http://www.openwall.com/lists/oss-security/2017/11/22/7https://www.securify.nl/en/advisory/SFY20171101/clickjacking-vulnerability-in-csrf-error-page-pfsense.htmlhttp://www.openwall.com/lists/oss-security/2017/11/22/7https://www.securify.nl/en/advisory/SFY20171101/clickjacking-vulnerability-in-csrf-error-page-pfsense.html

    Related CVEs

    CVE-2026-78849 — Cross Site Scripting vulnerability in Netgate pfSense Plus software versions <= 26.03 pfSense CE software vers…
    CVE-2025-12490 (CVSS 8.8) — Netgate pfSense CE Suricata Path Traversal Remote Code Execution Vulnerability. This vulnerability allows remo…
    CVE-2025-53392 (CVSS 5) — In Netgate pfSense CE 2.8.0, the "WebCfg - Diagnostics: Command" privilege allows reading arbitrary files via …
    CVE-2024-46538 (CVSS 4.8) — A cross-site scripting (XSS) vulnerability in pfsense v2.5.2 allows attackers to execute arbitrary web scripts…
    CVE-2023-48123 (CVSS 8.8) — An issue in Netgate pfSense Plus v.23.05.1 and before and pfSense CE v.2.7.0 allows a remote attacker to execu…
    CVE-2023-42325 (CVSS 5.4) — Cross Site Scripting (XSS) vulnerability in Netgate pfSense v.2.7.0 allows a remote attacker to gain privilege…
    CVE-2023-42327 (CVSS 5.4) — Cross Site Scripting (XSS) vulnerability in Netgate pfSense v.2.7.0 allows a remote attacker to gain privilege…
    CVE-2023-42326 (CVSS 8.8) — An issue in Netgate pfSense v.2.7.0 allows a remote attacker to execute arbitrary code via a crafted request t…
    CVE-2020-21487 (CVSS 9.6) — Cross Site Scripting vulnerability found in Netgate pfSense 2.4.4 and ACME package v.0.6.3 allows attackers to…
    CVE-2023-27253 (CVSS 8.8) — A command injection vulnerability in the function restore_rrddata() of Netgate pfSense v2.7.0 allows authentic…

    References

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

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High