PT-2020-12623 · Netgate · Pfsense

Matthew Aberegg · Published 2020-04-01 · Updated 2020-04-06 · CVE-2020-11457

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions pfSense versions prior to 2.4.5

Description The issue concerns stored XSS in the WebGUI, specifically in the system usermanager addprivs.php file, via the descr parameter, also known as the full name of a user.

Recommendations For versions prior to 2.4.5, update to version 2.4.5 or later to resolve the issue. As a temporary workaround, consider restricting access to the system usermanager addprivs.php file in the WebGUI to minimize the risk of exploitation. Avoid using the descr parameter in the affected WebGUI until the issue is resolved.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2020-11457

Affected Products

Pfsense

References · 6

• 🔥 https://exploit-db.com/exploits/48300 · Exploit
• https://github.com/pfsense/pfsense/commit/3c1e53dabe966f27c9097a5a923e77f49ae5fffa · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2020-11457 · Security Note
• https://osv.dev/vulnerability/CVE-2020-11457 · Vendor Advisory
• https://netgate.com/assets/downloads/advisories/pfSense-SA-20_06.webgui.asc · Vendor Advisory
• http://packetstormsecurity.com/files/157104/pfSense-2.4.4-P3-User-Manager-Cross-Site-Scripting.html · Note