CVE-2020-21487 — CRITICAL (9.6)

Vulnerability Description

Cross Site Scripting vulnerability found in Netgate pfSense 2.4.4 and ACME package v.0.6.3 allows attackers to execute arbitrary code via the RootFolder field of acme_certificates.php.

CVSS Score

9.6

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Netgate	Pfsense	2.4.4
Netgate	Pfsense Acme Package	0.6.3

Related Weaknesses (CWE)

CWE-79

References

https://github.com/pfsense/FreeBSD-ports/commit/a6f443cde51e7fcf17e51f16014d3589Patch
https://redmine.pfsense.org/issues/9888Issue TrackingPatch
https://github.com/pfsense/FreeBSD-ports/commit/a6f443cde51e7fcf17e51f16014d3589Patch
https://redmine.pfsense.org/issues/9888Issue TrackingPatch

FAQ

What is CVE-2020-21487?

CVE-2020-21487 is a vulnerability with a CVSS score of 9.6 (CRITICAL). Cross Site Scripting vulnerability found in Netgate pfSense 2.4.4 and ACME package v.0.6.3 allows attackers to execute arbitrary code via the RootFolder field of acme_certificates.php.

How severe is CVE-2020-21487?

CVE-2020-21487 has been rated CRITICAL with a CVSS base score of 9.6/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2020-21487?

Check the references section above for vendor advisories and patch information. Affected products include: Netgate Pfsense, Netgate Pfsense Acme Package.