CVE-2019-12347 : In pfSense 2.4.4-p3, a stored XSS vulnerability occurs when attackers inject a p

In pfSense 2.4.4-p3, a stored XSS vulnerability occurs when attackers inject a payload into the Name or Description field via an acme_accountkeys_edit.php action. The vulnerability occurs due to input validation errors.

Published 2019-05-29 19:29:00

Updated 2019-05-30 15:09:24

Source MITRE

View at NVD, CVE.org

Vulnerability category: Cross site scripting (XSS)

Products affected by CVE-2019-12347

Netgate » Pfsense » Version: 2.4.4 Update P3
cpe:2.3:a:netgate:pfsense:2.4.4:p3:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2019-12347

EPSS FAQ

73.82%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 99 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-12347

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:P/A:N	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
6.1	MEDIUM	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N	2.8	2.7	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Changed Confidentiality: Low Integrity: Low Availability: None

CWE ids for CVE-2019-12347

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2019-12347

https://www.pfsense.org/download/

Download pfSense Community Edition
Vendor Advisory

CVEs referencing this url
https://redmine.pfsense.org/issues/9554#change-40729

Bug #9554: Stored XSS in ACME Package (version 0.5.7_1) /acme/acme_accountkeys_edit.php - pfSense Packages - pfSense bugtracker
Exploit;Vendor Advisory
https://github.com/pfsense/FreeBSD-ports/commit/504909564079e540689dbdbed3a579483c614275

ACME 0.5.8 · pfsense/FreeBSD-ports@5049095 · GitHub
Patch;Third Party Advisory
http://packetstormsecurity.com/files/153112/pfSense-2.4.4-p3-Cross-Site-Scripting.html

pfSense 2.4.4-p3 Cross Site Scripting ≈ Packet Storm
Exploit;Third Party Advisory;VDB Entry
https://ctrsec.io/index.php/2019/05/28/stored-xss-acme-pfsense-2-4-4-p3/

CVE-2019-12347: Stored Cross-site Scripting on pfSense 2.4.4-RELEASE-p3 – Chi Tran
Exploit;Patch;Third Party Advisory

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Vulnerability Details : CVE-2019-12347

Products affected by CVE-2019-12347

Exploit prediction scoring system (EPSS) score for CVE-2019-12347

CVSS scores for CVE-2019-12347

CWE ids for CVE-2019-12347

References for CVE-2019-12347