CVE-2020-19201
pfSense Stored XSS Vulnerability
Description
A Stored Cross-Site Scripting (XSS) vulnerability was found in status_filter_reload.php, a page in the pfSense software WebGUI, on Netgate pfSense version 2.4.4-p2 and earlier. The page did not encode output from the filter reload process, and a stored XSS was possible via the descr (description) parameter on NAT rules.
INFO
Published Date :
July 12, 2021, 4:15 p.m.
Last Modified :
Sept. 14, 2021, 2:46 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
2.7
Exploitability Score :
2.3
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-19201.
| URL | Resource |
|---|---|
| https://docs.netgate.com/pfsense/en/latest/releases/2-4-4-p3.html | Product Vendor Advisory |
| https://gist.github.com/dharmeshbaskaran/fd3779006361d07651a883e8a040d916 | Exploit Third Party Advisory |
| https://www.pfsense.org/download/ | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-19201 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-19201 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Sep. 14, 2021
Action Type Old Value New Value Changed Reference Type https://gist.github.com/dharmeshbaskaran/fd3779006361d07651a883e8a040d916 No Types Assigned https://gist.github.com/dharmeshbaskaran/fd3779006361d07651a883e8a040d916 Exploit, Third Party Advisory Changed CPE Configuration OR *cpe:2.3:a:pfsense:pfsense:2.4.4:p2:*:*:community:*:*:* OR *cpe:2.3:a:netgate:pfsense:2.4.4:p1:*:*:*:*:*:* *cpe:2.3:a:netgate:pfsense:2.4.4:p2:*:*:*:*:*:* *cpe:2.3:a:netgate:pfsense:*:*:*:*:*:*:*:* versions up to (including) 2.4.4 -
CVE Modified by [email protected]
Jul. 15, 2021
Action Type Old Value New Value Changed Description Netgate pfSense 2.4.4 - p2 is affected by: Cross Site Scripting (XSS). The impact is: Authenticated Stored XSS in NAT Configuration (local). The component is: Description Text box, Status/Reload Filter Page. The attack vector is: An attacker get access to the victim's session by performing the CSRF and gather the cookie and session ids or possibly can change the victims NAT configuration using this Stored XSS. This attack can possibly spoof the victim's informations. A Stored Cross-Site Scripting (XSS) vulnerability was found in status_filter_reload.php, a page in the pfSense software WebGUI, on Netgate pfSense version 2.4.4-p2 and earlier. The page did not encode output from the filter reload process, and a stored XSS was possible via the descr (description) parameter on NAT rules. Added Reference https://gist.github.com/dharmeshbaskaran/fd3779006361d07651a883e8a040d916 [No Types Assigned] -
Initial Analysis by [email protected]
Jul. 14, 2021
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:S/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Changed Reference Type https://docs.netgate.com/pfsense/en/latest/releases/2-4-4-p3.html No Types Assigned https://docs.netgate.com/pfsense/en/latest/releases/2-4-4-p3.html Product, Vendor Advisory Changed Reference Type https://www.pfsense.org/download/ No Types Assigned https://www.pfsense.org/download/ Vendor Advisory Added CWE NIST CWE-79 Added CPE Configuration OR *cpe:2.3:a:pfsense:pfsense:2.4.4:p2:*:*:community:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-19201 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-19201
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.09 }} 0.00%
score
0.37998
percentile