PT-2022-9194 · Unknown · Pfsense Plus+1

Yutaka Watanabe · Published 2022-03-31 · Updated 2022-04-08 · CVE-2021-20729

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 CE versions 2.5.2 and earlier pfSense Plus versions 21.05 and earlier

Description A cross-site scripting issue allows a remote attacker to inject an arbitrary script via a malicious URL. This enables the attacker to execute unauthorized actions on the affected system.

Recommendations For pfSense CE versions 2.5.2 and earlier, update to a version later than 2.5.2 to resolve the issue. For pfSense Plus versions 21.05 and earlier, update to a version later than 21.05 to resolve the issue. As a temporary workaround, consider restricting access to potentially vulnerable URLs to minimize the risk of exploitation.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-20729

Affected Products

Pfsense Ce

Pfsense Plus

References · 6

• https://osv.dev/vulnerability/CVE-2021-20729 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-20729 · Security Note
• https://docs.netgate.com/downloads/pfSense-SA-21_02.captiveportal.asc · Note
• https://jvn.jp/en/jp/JVN87751554/index.html · Note
• https://t.me/cibsecurity/39901 · Telegram Post
• https://t.me/cvenotify/28193 · Telegram Post