PT-2021-17677 · Pfsense · Pfsense

William Costa · Published 2021-04-27 · Updated 2021-05-01 · CVE-2021-27933

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: pfSense version 2.5.0

Description: The issue allows for stored Cross-Site Scripting (XSS) via the Description field in the services wol edit.php file.

Recommendations: For pfSense version 2.5.0, update to a version that includes a fix for this issue to prevent exploitation.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-27933

Affected Products

Pfsense

References · 5

• 🔥 http://seclists.org/fulldisclosure/2021/Apr/61 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-27933 · Security Note
• https://osv.dev/vulnerability/CVE-2021-27933 · Vendor Advisory
• https://t.me/defcon_news/74761 · Telegram Post
• https://t.me/cvenotify/13844 · Telegram Post